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Type 4, 1700cc engine rebuild for a bus, what to do, suggestions
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Ceckert64
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PostPosted: Sat Feb 27, 2021 8:39 pm    Post subject: Re: Type 4, 1700cc engine rebuild for a bus, what to do, suggestions Reply with quote

This week I took the dive and ordered a set of 1972 dual carbs with the short bases and correct linkage for $150 shipped. So I just need the Air cleaned brackets, accelerator spring bracket that goes in the coil and the distributor and I think I have all the other parts for the dual carb setup. I think it is the best plan to start with, simplicity, reliability, there is little to go wrong, and honestly, I think the 72 setup just looks cool Laughing I will probably rebuild the carbs myself. And I have three left handed carbs as spares if I need parts Laughing

So the distributor, maybe this is a more bay forum question, but with the original 72 distributor, are there any other DVDA style distributors with a similar advanced curve? 021905205E is the part number for it. Sadly I had the right one but it was rusted on the inside and destroyed. I only found one for sale restored for $225. Is their a suitable substitute? I have read that for the 1972 dual carbs to operate at peak performance you need the correct DVDA distributor. I have some other T4 distributors including some d-jet style ones.

Clatter, I think I might do the 86 cam as you suggest. I had been looking for a camshaft with a grind that would work good with both carbs or aftermarket fuel injection, but I don’t think there is a good cam that will keep the engine cool and accomplish both. So if I decided to change it down the road I would have to pull the engine apart again but I will probably be anyways just to inspect.

I will probably never let my engine temps get over 400. That will probably extend the life on the engine a lot.

I just sold a big order to someone so I I will probably be sending out my stuff this week to be machined when I head to UPS. I might make a wood crate for everything to keep it safe on its journey. I plan on having DPR machine the crank, flywheel, balance them. This is kind of a stupid question but when you machine the crank and put in oversized bearings, do you have to also hone the connecting rod? And should I have them balance connecting rods? I think I can do pistons and wrist pins.

Thanks, Aiden
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orwell84
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PostPosted: Sat Feb 27, 2021 9:17 pm    Post subject: Re: Type 4, 1700cc engine rebuild for a bus, what to do, suggestions Reply with quote

Your carb setup will affect your cam choice. Usually a stock grind type of cam is recommended for use of those carbs. I am going to try to use them with a Web 73 which some would not recommend either but people have made it work. I know of someone running original dual carbs with a Scat? C25.
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Clatter
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PostPosted: Sat Feb 27, 2021 9:39 pm    Post subject: Re: Type 4, 1700cc engine rebuild for a bus, what to do, suggestions Reply with quote

A Web 86 will work well with those PDSITs.
It might idle a bit like a Harley, but should run well with some revs.

Try and get your compression up a bit if you can.

FWIW,
If you can find the right core motor, you can up your displacement for almost free.
Find a 'two liter' (1971cc) motor to start with and go from there.
Yes the early bottom ends are bulletproof,
But if you're going to throw that much money at a stock lower end, at least start with the bigger one.
JMHO.

Unfortunately that also means 2.0 pistons as well..

The user 'MikeyM73' -or something like that- on the bay bus forum built a really nice bus motor on the cheap.
See if you can dig his thread up.
My 'Cheap Junk' build used the early heads and exhaust on 2.0 bottom end internals.
Best of both worlds..

You might copy my rod balancing jig to save a few bucks?


Can't believe you have a junkyard that still has old aircooled VWs...! Shocked

Those factory dual-carb type 4 airboxes and are cool as ice!
Cool
I like the later square style myself..
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if you have the expectation that you can put mexican taxi bearings, in a brazil engine case, and put a chinese crank in it and have the right clearance...
Time to change your expectations.
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Ceckert64
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PostPosted: Sun Feb 28, 2021 5:42 pm    Post subject: Re: Type 4, 1700cc engine rebuild for a bus, what to do, suggestions Reply with quote

I will stay with the 1700 since I have some really nice and high quality NOS domed pistons. I will probably try to get between 8.2:1 8.5:1 for compression.

I’m trying to build a road trip motor for this so making sure everything is “new” and in good shape is mainly what I want for this build as I want to do longer trips, possibly cross country. But, I wouldn’t be opposed to a junkyard style 2L with used parts for another one of my projects Anxious Cool

Eventually I can do some experimenting with engines, the going rate at the junkyard is $250 for a complete T4 engine with everything on it. I think there is a Vanagon T4 motor that someone started rebuilding and it might have a good 2L crank.

Just to brag a little, there are probably 2 dozen T4 motors at the junkyard and a couple hundred T1 motors. There are probably 75-125 ACVWs sitting in the junkyard, even a 914. The great thing is the guy that owns it is constantly getting new inventory. There is about a new ACVW every month.
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Last edited by Ceckert64 on Fri Mar 19, 2021 7:49 am; edited 1 time in total
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orwell84
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PostPosted: Wed Mar 03, 2021 6:30 am    Post subject: Re: Type 4, 1700cc engine rebuild for a bus, what to do, suggestions Reply with quote

Clatter wrote:
A Web 86 will work well with those PDSITs.
It might idle a bit like a Harley, but should run well with some revs.

Try and get your compression up a bit if you can.

FWIW,
If you can find the right core motor, you can up your displacement for almost free.
Find a 'two liter' (1971cc) motor to start with and go from there.
Yes the early bottom ends are bulletproof,
But if you're going to throw that much money at a stock lower end, at least start with the bigger one.
JMHO.

Unfortunately that also means 2.0 pistons as well..

The user 'MikeyM73' -or something like that- on the bay bus forum built a really nice bus motor on the cheap.
See if you can dig his thread up.
My 'Cheap Junk' build used the early heads and exhaust on 2.0 bottom end internals.
Best of both worlds..

You might copy my rod balancing jig to save a few bucks?


Can't believe you have a junkyard that still has old aircooled VWs...! Shocked

Those factory dual-carb type 4 airboxes and are cool as ice!
Cool
I like the later square style myself..


How does the Web 86 compare to the Web 73? I’m not familiar with the 86.

I’m jealous about the junkyard. Might have to make a road trip to Michigan.
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Ceckert64
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PostPosted: Wed Mar 03, 2021 8:48 am    Post subject: Re: Type 4, 1700cc engine rebuild for a bus, what to do, suggestions Reply with quote

orwell84 wrote:
I’m jealous about the junkyard. Might have to make a road trip to Michigan.

It’s definitely an awesome place to go! I will say most T4 engines left are stripped down a bit, but there are still some with complete FI systems. If you come up let me know! Also, all the good parts are in the trailers and school buses, not as many left on the car. The front shed has some hidden treasures too. I found a lot of parts I didn’t know I needed there Laughing
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Ceckert64
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PostPosted: Fri Mar 19, 2021 7:48 am    Post subject: Re: Type 4, 1700cc engine rebuild for a bus, what to do, suggestions Reply with quote

I finally have an update, I kept dragging my feet on getting parts machined. I decided to go to my local machine shop with my friend. It was a really nice place. The machinist was out on vacation but the other mechanics that were there were still very knowledgeable. They showed me around the machine shop and it was very nice and clean. They had balancers, engine dyno, hones, shot-peen blaster, and a ton of other machines. They probably had 15-20 different specialty machines. They were thinking the crank may just need to be polished. They were very nice, trustworthy people. I am going to have them do all of the work. They said its has been a while but they have built a few vw engines. I think they said one was (I forget the specifics) but was around 2200cc and was at around 400 hp. They seem to be a very busy shop t so that is a good sign. And it is only about 20 minutes away from my school.

So the first Dual carb order didn't go well. They couldn't find the parts and then it took a long time to get my money back and I had to keep calling about the refund. I ended up finding another set a few days ago off the classifieds and ordered those. They are 72 short base intakes but they supposedly came off of a running bus and look to be in good shape, I also got them for $140 shipped Very Happy

Aiden
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Ceckert64
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PostPosted: Mon Apr 19, 2021 9:13 am    Post subject: Re: Type 4, 1700cc engine rebuild for a bus, what to do, suggestions Reply with quote

Progress is still non existent, still waiting on the machine shop.

The second carb order did not go well either Rolling Eyes Third times the charm, I have my 72 only carbs and intakes, I got my linkage straightened and mocked up all the parts on the 412 motor. I still need a few pieces for the setup like air cleaner mounts, preheat tube, and some others.
Image may have been reduced in size. Click image to view fullscreen.

Image may have been reduced in size. Click image to view fullscreen.


Last time I was a the junkyard I stumbled apon a 6 rib bus trans sitting in a trailer. When I turned the input shaft it the CV flange, it sounded like gears were hitting like the teeth weren’t engaged, it was even. I forget if it turned when turning one spot. But anyways, since I’m doing a higher compression with a bit more power, do you think a 6 rib would be a good idea since I want to do some freeway driving? Assuming it needs rebuilt, what is its market value? If it’s cheap enough and higher value I might even buy it to resell.

I’m going this week to the junkyard and I might get the vanagon 2L crank as it turned free and I’m hoping it was machined and it might be good. I might also try to find some 2L pistons. Also, if anyone needs any parts while I’m there feel free to PM me.
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PostPosted: Tue Apr 20, 2021 6:07 pm    Post subject: Re: Type 4, 1700cc engine rebuild for a bus, what to do, suggestions Reply with quote

As much as those old PDSIT setups are sweet looking and have a quiet air filter setup,
I'd say just push the button and bite the bullet and find a set of Webers.
Even if you get some of those China FAJS shitters it's going to be less of a circus than the originals,
And cost the same or less in the end anyways.
I know it might seem like a lot of cake,
But dual dual-throat carbs are just a better deal all around if you care about how it performs even a little bit.
Just bolting a set of Webers, Dells or ching chong copies will make even a stock motor get better mileage, run smoother, be more tame to drive in traffic, and of course make more power.
Plus they're common as salt, easy to get parts and jets, and won't require specialist attention.
You've seen already some of the shennanigans involved with those old PDSITs.
Soon as you have a stock 2-liter you've already outgrown them,
Will need to start down the path of specialist jetting,
And will be leaving power on the table.

If you were doing an all-original resto on a nice survivor bus maybe it would be different.

Stop now, before you learn a hard lesson.
Don't take the bait.

Wink
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modok wrote:
if you have the expectation that you can put mexican taxi bearings, in a brazil engine case, and put a chinese crank in it and have the right clearance...
Time to change your expectations.
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PostPosted: Tue Apr 20, 2021 6:25 pm    Post subject: Re: Type 4, 1700cc engine rebuild for a bus, what to do, suggestions Reply with quote

Those carbs can be an assache, especially if you are at the scrounging parts stage. I found the 34 ICT’s way easier to deal with, though you may want something bigger. If you like to tinker with the original stuff, slap some new ones on and you can hunt for sproinky sprockets to your heart’s content without a summer camping deadline looming.
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PostPosted: Tue Apr 20, 2021 7:03 pm    Post subject: Re: Type 4, 1700cc engine rebuild for a bus, what to do, suggestions Reply with quote

You guys are probably right with the PDSITs, I started seeing all the issues with them after I started purchasing them. I have $250 into PDSITs d'oh! but I have two sets of dual carbs, a 72 only set and a 73-74 set, and my NOS rebuild kit for them came in today. I might rebuild them and could sell them and make my money back. I could probably sell as a complete 72 setup as I have most everything.

Clatter, do you know if the short base carbs with the solexs and 72 air cleaner fit under a T3 decklid Anxious Laughing

I will do some more research into other types of carbs. It sounds like the PDSIT will be a pain. I’ve seen about closing up throttle plates, difficult tuning, and on high top pistons it can overheat easier.

I always am happy to see your guys’ replies! Thank for the help!

Aiden
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PostPosted: Tue Apr 20, 2021 8:39 pm    Post subject: Re: Type 4, 1700cc engine rebuild for a bus, what to do, suggestions Reply with quote

Would be interesting to see if that carb/filter setup fits on a type 4 under a type 3 decklid.. Wink
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modok wrote:
if you have the expectation that you can put mexican taxi bearings, in a brazil engine case, and put a chinese crank in it and have the right clearance...
Time to change your expectations.
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PostPosted: Thu Apr 29, 2021 1:55 pm    Post subject: Re: Type 4, 1700cc engine rebuild for a bus, what to do, suggestions Reply with quote

When I went to the junkyard I found something interesting... I found a 1979 CA Hall effect sensor distributor for a bus. Might be an interesting choice. But Chickensoup also suggested something like MSD Ignition as an upgrade and I looked into it a bit and it looks interesting
Image may have been reduced in size. Click image to view fullscreen.

Image may have been reduced in size. Click image to view fullscreen.


For carbs, are there any good articles comparing all the choices? I’ve search but none with a side by side with each carb. So a couple questions:

How is cold starting with aftermarket carbs with no choke? How cold can you go without having many issues? For my T3 it has started right up at -5 degrees Fahrenheit Shocked I probably will never go that cold with this engine but it definitely needs to start from 20 degrees up.

Gas mileage for different carbs? I want to get the best possible MPG that still are good for power, so that from the sounds, that eliminates the PDSITs.

For the 34 ICT, they have a good price which is nice. Could you use the 72 only air cleaner with them with the short intakes? Also, if I want some power, would I be killing myself with an oil bath air cleaner?

The dual throats seem nice but the cost for even used Shocked I looked more at the Weber IDF. Is there a specific one that you would recommend?

Not carb related, but for exhaust, would the 411/412 style header heater boxes be less restrictive than the aluminum finned heater boxes that have the ribbed exhaust pipe for better heat exchange on busses? Or are they about the same? And then would a vintage speed muffler be the best option? Any other good exhaust?
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PostPosted: Thu Apr 29, 2021 3:04 pm    Post subject: Re: Type 4, 1700cc engine rebuild for a bus, what to do, suggestions Reply with quote

Ceckert64 wrote:


How is cold starting with aftermarket carbs with no choke? How cold can you go without having many issues? For my T3 it has started right up at -5 degrees Fahrenheit Shocked I probably will never go that cold with this engine but it definitely needs to start from 20 degrees up.

Gas mileage for different carbs? I want to get the best possible MPG that still are good for power, so that from the sounds, that eliminates the PDSITs.

For the 34 ICT, they have a good price which is nice. Could you use the 72 only air cleaner with them with the short intakes? Also, if I want some power, would I be killing myself with an oil bath air cleaner?

The dual throats seem nice but the cost for even used Shocked I looked more at the Weber IDF. Is there a specific one that you would recommend?

Not carb related, but for exhaust, would the 411/412 style header heater boxes be less restrictive than the aluminum finned heater boxes that have the ribbed exhaust pipe for better heat exchange on busses? Or are they about the same? And then would a vintage speed muffler be the best option? Any other good exhaust?


Currently running China 40 IDF clones on my 1600 dp, cw crank, LW flywheel , engle 110 , 8:1 . finally got them jetting correctly.... if i keep my foot out of it (easy to do becuase the usable power is so much better over ICT's.) I get regularly now 34mpg...in a fastback. someone im sure will call BS, but a 5K altitude thats what im getting, and the engine is so much more peppy.

not sure what kind of effect it will have on a stockish type 4.... but they made a helluva difference on my car
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PostPosted: Fri Apr 30, 2021 8:32 am    Post subject: Re: Type 4, 1700cc engine rebuild for a bus, what to do, suggestions Reply with quote

Dual duals are going to work better all around.
Mileage performance, etc.
Cold starts can be a bit inelegant on really freezing days, but you pump some more and get it going and it's fine.

There are those super cheap FAJS or other cheapiecheapie China copies new for painfully cheap.
They're either good or not.
If you're diligent and buy from an ebay seller who will take them back,
and you're up for an adventure, go for it.
Time the purchase of them so you can stab them on the motor right away.
They will either behave or not.
Keep the boxes and turn them right back around for return if they don't work correctly.
You'll pretty much know right away..
I've heard a few accounts now of them working just fine.
You're young, lots of time, little money, sounds perfect.
Post up here, and there's tons of help so you'll know what's what.

ICTs kind of suck IMHO. Don't bother.

As for those factory distributors,
You got yourself a sweet little project cooking.
I love those factory distributors for tuning a hot type 4 in a bus.
I spent a bunch on a Mallory years ago,
but it never really gave anything a tweaked factory distributor wouldn't.

You'll want to take one all apart and clean the old hardened goo up, make sure it's shimmed right, replace any worn/broken fiber washers and generally make sure it's tip-top.
If you're building with a bit more cam and compression and dual carbs and free-flowing exhaust, it's fun to tweak in a distributor to complement the rest of the combo.
lighter springs from a 009 can make it come in earlier, bending stops can limit overall range so you can use more initial.
Goal is 12-28 for a mild built motor in a bus.
The '79+ hall-effect distributor is one of my favorites. Those are super reliable.
You'll have to have the Fairchild box with the finned aluminum heat sink and wiring harness to run it. Plug the little connector to bypass.
Will walk you through this once you get the thing cleaned up and shimmed and lubed and all.

I'm not a fan of the VST stuff just for the fact that i believe in the whole 'scavenging' or 'extractor' theory of pipes into a collector.
100 years of performance tuning can't suddenly go out the window.
Guess it depends on how much you care about looks vs. performance, even though i like the looks of a real header myself.
Here's the ticket. China, so you might have to tweak or weld pinholes or whatever, but you have a welder and know how to use it.
They also make a stainless version for a bit more cake.
https://www2.cip1.com/ProductDetails.asp?ProductCode=C13%2D3439

The full bus 72-74 heater boxes are heavy, but they will make real heat vs. the 411/412 pre-heater pipes. Those were pre-heat for a gas heater.
I welded fins into mine and run them because they're light and i live in warm-ish California. They need a bit of fab work to make fit because the forward snouts are all pinched in.. There's a shit ton about this mod in my Fastback build.
Get a BA6 and just run J-tubes.. You can fix gas heaters already anyways, right?
There's way more gas heaters to find up in your part of the country.

The killer bus motor goes like this:
1971cc
8:1 CR
72-74 exhaust and header
Web 73/73 + 2.5
42 x 36 valves
12-28 timing
Make sure the ignition advances nice and early,
Or run SVDA
Weber40s or Dell36s or L-Jet or Digital EFI

I have run a bunch of combos over the years,
And this one is WAY better than any other..
If you have your choice, shoot for this.
_________________
Bus Motor Build
Fastback Build

modok wrote:
if you have the expectation that you can put mexican taxi bearings, in a brazil engine case, and put a chinese crank in it and have the right clearance...
Time to change your expectations.
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Ceckert64
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PostPosted: Fri Apr 30, 2021 3:46 pm    Post subject: Re: Type 4, 1700cc engine rebuild for a bus, what to do, suggestions Reply with quote

Currently running China 40 IDF clones on my 1600 dp, cw crank, LW flywheel , engle 110 , 8:1 . finally got them jetting correctly.... if i keep my foot out of it (easy to do becuase the usable power is so much better over ICT's.) I get regularly now 34mpg...in a fastback. someone im sure will call BS, but a 5K altitude thats what im getting, and the engine is so much more peppy.

not sure what kind of effect it will have on a stockish type 4.... but they made a helluva difference on my car[/quote]

Thanks! I can believe it. I can get 30mpg with D-jet in my Squareback without having done much tuning and driving it a little hard. Good info!

Clatter wrote:
Dual duals are going to work better all around.
Mileage performance, etc.
Cold starts can be a bit inelegant on really freezing days, but you pump some more and get it going and it's fine.

There are those super cheap FAJS or other cheapiecheapie China copies new for painfully cheap.
They're either good or not.
If you're diligent and buy from an ebay seller who will take them back,
and you're up for an adventure, go for it.
Time the purchase of them so you can stab them on the motor right away.
They will either behave or not.
Keep the boxes and turn them right back around for return if they don't work correctly.
You'll pretty much know right away..
I've heard a few accounts now of them working just fine.
You're young, lots of time, little money, sounds perfect.
Post up here, and there's tons of help so you'll know what's what.

ICTs kind of suck IMHO. Don't bother.

As for those factory distributors,
You got yourself a sweet little project cooking.
I love those factory distributors for tuning a hot type 4 in a bus.
I spent a bunch on a Mallory years ago,
but it never really gave anything a tweaked factory distributor wouldn't.

You'll want to take one all apart and clean the old hardened goo up, make sure it's shimmed right, replace any worn/broken fiber washers and generally make sure it's tip-top.
If you're building with a bit more cam and compression and dual carbs and free-flowing exhaust, it's fun to tweak in a distributor to complement the rest of the combo.
lighter springs from a 009 can make it come in earlier, bending stops can limit overall range so you can use more initial.
Goal is 12-28 for a mild built motor in a bus.
The '79+ hall-effect distributor is one of my favorites. Those are super reliable.
You'll have to have the Fairchild box with the finned aluminum heat sink and wiring harness to run it. Plug the little connector to bypass.
Will walk you through this once you get the thing cleaned up and shimmed and lubed and all.

I'm not a fan of the VST stuff just for the fact that i believe in the whole 'scavenging' or 'extractor' theory of pipes into a collector.
100 years of performance tuning can't suddenly go out the window.
Guess it depends on how much you care about looks vs. performance, even though i like the looks of a real header myself.
Here's the ticket. China, so you might have to tweak or weld pinholes or whatever, but you have a welder and know how to use it.
They also make a stainless version for a bit more cake.
https://www2.cip1.com/ProductDetails.asp?ProductCode=C13%2D3439

The full bus 72-74 heater boxes are heavy, but they will make real heat vs. the 411/412 pre-heater pipes. Those were pre-heat for a gas heater.
I welded fins into mine and run them because they're light and i live in warm-ish California. They need a bit of fab work to make fit because the forward snouts are all pinched in.. There's a shit ton about this mod in my Fastback build.
Get a BA6 and just run J-tubes.. You can fix gas heaters already anyways, right?
There's way more gas heaters to find up in your part of the country.

The killer bus motor goes like this:
1971cc
8:1 CR
72-74 exhaust and header
Web 73/73 + 2.5
42 x 36 valves
12-28 timing
Make sure the ignition advances nice and early,
Or run SVDA
Weber40s or Dell36s or L-Jet or Digital EFI

I have run a bunch of combos over the years,
And this one is WAY better than any other..
If you have your choice, shoot for this.

Thanks for the information!

As long as it can start, that’s fine. I will probably be driving the Squareback most of the time when it’s cold as it has wicked heat with the stock heat being great plus the gas heater I added Laughing So as long as it can start within a minute or two I’m fine with that.

I looked up the FAJS and those look to be a good possible option. Could even be the same people that make real Webers(?) China doesn’t necessarily make bad things, companies just want stuff made really cheap and that’s the cheapest way to make something and send it over to sell for cheap. But China can make good stuff and that may be what these FAJS are. From another place I looked it seems like they are decent quality. I found these, I might be able to find cheaper but a complete kit like this, this would be nice and easy.
https://www.ebay.com/itm/323762880608?chn=ps&n...eOEALw_wcB
Also, I forgot to ask, since my bus is a 72, it does t have the engine lid, would I have enough room to tune them. Also, this just popped into my head, would my BN4 gas heater hit the FAJS carbs?

I was excited to find the hall-effect distributor at the junkyard! I can’t believe I did being in Michigan and it was on a bus case (not vanagon) so that is a 79 only CA bus that made it to Michigan, a long ways. I was lucky it didn’t have a distributor cap because I would have never noticed it if the distributor cap was still on, the engine it was on was sitting in a school bus at the junkyard. I was reading that setup was reliable originally so I guess I will run it. Is there a specific model of the Fairchild ignition module? Is this what you were talking about? https://www.ebay.com/itm/153848476915?_trkparms=is...3LEALw_wcB
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1964 sunroof Beetle Restoration "Herbie"
“Don” 1965 Factory sunroof parts beetle-SOLD
“Joann” 1970 Elm Green Squareback
1972 Sierra Yellow Tin Top Westfalia Camper + 1700cc Type4 engine rebuild
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Ceckert64
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Location: Midland, Michigan
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PostPosted: Sat May 01, 2021 9:03 pm    Post subject: Re: Type 4, 1700cc engine rebuild for a bus, what to do, suggestions Reply with quote

I started taking apart the distributor, it has some bad rust from sitting without a cap on so I may have to buy another one for parts.

On the last post, I never got back to exhaust. I might consider the Empi exhaust, my concern is that it looks like it would hang down low based on the busses that use it. I would be concerned about it bottoming out and getting ripped off. But I could possibly tweak and adjust it and get a better/closer fit up to my bus. I looked at a tech article to understand why the collector system works best with the gas flow for power. I know this wouldn’t likely be as good but it would look nice, the EMPI GT 2 tip dual sport style exhaust. It is kind of a collector system for each side, Thoughts? https://www2.cip1.com/SearchResults.asp?Search=ACC-D-2072

For the heater boxes, I was considering what you were saying about welding fins on, and then maybe adding steel wool or something to my 411/412 heater boxes. I have one real heater box from a bus but it need a new skin and I don’t know if I feel like reskinning it.
Image may have been reduced in size. Click image to view fullscreen.

Image may have been reduced in size. Click image to view fullscreen.


I will probably do something along the lines of what you recommend for engine spec Clatter. I think I will stick 1700cc for now as I have some really nice donned high compression pistons and I could get a bit higher compression for those. They are also Nüral NOS and they are super nice high quality pistons. I think Ray was saying I could go 8.2:1-8.4:1 with compression with them. Would that cause any issues.

TIA,
Aiden
_________________
1964 sunroof Beetle Restoration "Herbie"
“Don” 1965 Factory sunroof parts beetle-SOLD
“Joann” 1970 Elm Green Squareback
1972 Sierra Yellow Tin Top Westfalia Camper + 1700cc Type4 engine rebuild
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Ceckert64
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PostPosted: Sat May 08, 2021 6:24 am    Post subject: Re: Type 4, 1700cc engine rebuild for a bus, what to do, suggestions Reply with quote

Any thoughts?
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1964 sunroof Beetle Restoration "Herbie"
“Don” 1965 Factory sunroof parts beetle-SOLD
“Joann” 1970 Elm Green Squareback
1972 Sierra Yellow Tin Top Westfalia Camper + 1700cc Type4 engine rebuild
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Clatter
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PostPosted: Sat May 08, 2021 7:51 am    Post subject: Re: Type 4, 1700cc engine rebuild for a bus, what to do, suggestions Reply with quote

That ebay module looks like the one, but you'll want to look up the numbers (Ratwell?).
Kind of a lot of money for a gamble on a used electrical part.
You'll need the harness, as that can be the hard part.
Kyle Automotive Specialties could likely make you a harness,
But,
Since you said that distributor was wet inside,
At this point you're going down a rabbit hole.
Not sure it's worth it to pursue if you need all the ancillaries.
Usually you get to grab all that stuff of the vehicle itself.
Maybe you could find it? Or find a Vanagon there?
An early Vanagon would have those parts.

The T-bird header, as it's known, because it was an original USA design, works well.
All we have now is China copycats, but they work the same because they copied something great.
I hoard the originals when i see them.
Check my cheap junk build for differences.
Not sure it hangs any lower than others.
I built a receiver hitch inside the bumper and it's the low spot back there.


A 1700 bottom end would work, it'll just have to rev a bit more. Sounds fun.
As long as the heads and -especially- the exhaust flow well, it will run cool and make power.
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Bus Motor Build
Fastback Build

modok wrote:
if you have the expectation that you can put mexican taxi bearings, in a brazil engine case, and put a chinese crank in it and have the right clearance...
Time to change your expectations.
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PostPosted: Sat May 08, 2021 8:21 am    Post subject: Re: Type 4, 1700cc engine rebuild for a bus, what to do, suggestions Reply with quote

If you're going to run a set of Webers or their copies,
Better linkage and filters might be worth it.
Some of those kits have linkage that's hard to keep in sync and the tin cleaners are known to pass more junk thru.
https://www.cbperformance.com/product-p/3128.htm

Used to be, BITD, many sets of type 4 manifolds showed up at swaps for cheap.
People were switching their Webers over to a type 1 motor, or going back to FI on a 914 or something...?
3/4 of all the Weber manifolds lying around were type 4..
There's still a couple sets on the classifieds.
https://www.thesamba.com/vw/classifieds/detail.php?id=2010804

If you got manifolds and linkage and filters already, motor done,
Then you might be able to get just the carbs new from China.
Seen them for like $90/ea. before..
Slap them on and see..
_________________
Bus Motor Build
Fastback Build

modok wrote:
if you have the expectation that you can put mexican taxi bearings, in a brazil engine case, and put a chinese crank in it and have the right clearance...
Time to change your expectations.
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