TheSamba.com :: View topic - thewalrus (Big Jack) Type 4 Engine Thread FAQ

Sun May 13, 2012 12:19 pm

BumbleBus wrote: thewalrus wrote:

Hey thewalrus thanks for this thread it's great!! Wondering... pretty sure I need 1,6 & 7 based on gas leaking upon filling up 8) ... can't seem to find an online vendor that would have those parts. Any leads? Thanks!!!

Your '72 didn't use any of these parts and the part you actually need is not readily available. There are work arounds though.

Sun May 13, 2012 12:32 pm

Wildthings wrote: Your '72 didn't use any of these parts and the part you actually need is not readily available. There are work arounds though.

Thanks Wildthings.. love me my '72 and it's one offs. :lol: :roll: I'll search around for alternatives. Don't like gas splashing all over my hot tranny. :shock:

Sun May 13, 2012 12:46 pm

BumbleBus wrote: Wildthings wrote: Your '72 didn't use any of these parts and the part you actually need is not readily available. There are work arounds though.

Thanks Wildthings.. love me my '72 and it's one offs. :lol: :roll: I'll search around for alternatives. Don't like gas splashing all over my hot tranny. :shock:

Never actually done this on a '72, but I think you would need to get a #7 off of a '76 or later bus, or have a piece of tubing bent for you at a muffler shop. You would then want to acquire two #6's, one for each end of you new made/found #7. You could also use pieces of fuel filler hose from your local FLAPS instead of buying the two #6's.

Other may have better ideas.

Sun May 13, 2012 1:03 pm

a techniccal question: has anyone tried 7/8" ( 22.225 mm ) dishwasher / garbage disposal drain hose as a substitute for the apparently unobtainable 21 mm hose from the breather box to the S boot?

Sun May 13, 2012 1:09 pm

Mal evolent wrote: a techniccal question: has anyone tried 7/8" ( 22.225 mm ) dishwasher / garbage disposal drain hose as a substitute for the apparently unobtainable 21 mm hose from the breather box to the S boot?

I think that is what I used on one of my Bays. Haven't put many miles on it to date.

Sun May 13, 2012 2:20 pm

BumbleBus wrote: pretty sure I need 1,6 & 7 based on gas leaking upon filling up 8) ... can't seem to find an online vendor that would have those parts. Any leads? Thanks!!!

The best quality repo for the fuel filler neck (#1) is here:

http://www.bus-boys.com/
Filler Neck Elbow, Upper, 1974 All, 1975 to 1978 FED MODEL
211-201-119 $18.15

Original VW left, Bus Boys repo right:

Ratwell had a hell of a topic going on each suppliers repo and a breakdown of which was the best fit but unfortunately the pictures he linked have all gone dead:

http://www.thesamba.com/vw/forum/viewtopic.php?t=275048&highlight=fuel+filler

Sun May 13, 2012 3:15 pm

this picture is not right for all years:

the Y labeled B is down under the blue block just above and to the right of the distributor

the Aux air regulator ( where G meets F ) is in the bend of H ( breather box hose )

the decel valve looks very different

on my '77

Mon May 14, 2012 7:05 am

72-79 Bus Engine Removal (Per Ratwell)

http://www.ratwell.com/technical/EngineRemoval.html

Mon May 14, 2012 7:25 am

Baywindow Guide to Upgrades (Per Ratwell)

Awesome reference guide to updating not only your T4 engine but, some other antiquated aspects of your late bay. I've done a few and trust me, they're worth it!

http://www.ratwell.com/technical/EssentialUpgrades.html

Mon Jun 11, 2012 10:08 am

thewalrus wrote: My own 2.0L is a bit of a mystery to me. Right off the bat I'm going to say that it is NOT the original 2.0L. It's a hodge-podge of '70's F.I. components but it IS supposed to be a 2.0L engine. The M-Code proves it's not a PO install:

M-Code:
52 089 363

J2R152 D02 148 227 508

07 5 7256 UP 2218 61

Deciphered

Chassis/VIN:
2252089363

The M-Code goes against a lot of info saying that the introduction of the 2.0L was in August '75 ('76 Model year). I'm going to grab my buddys VIN and M-Code out of his February '75 Westfalia next time I see him and see if that sheds any light on mine

Did some further investigating on this and grabbed the M-Code off my friends '75 Westfalia. This is the breakdown of his bus:

The manufacture date is January 31, 1975 and it came with a 1.8 F.I meaning our busses were made 14 days apart!

Sun Jul 29, 2012 5:53 pm

Hi
I have a 78 bus camper. it has a 2L with good compressions with dual weber 44. I just took it over interstate 5 to Sierra mountain in California and on 6% incline at 47-50 in third gear doing well. could not go any faster. outside temp 30 degrees centigrade( 86 F) and the oil temp steady at 220F. is this good, bad or ugly?

now i Have purchased another 78 bus for parting. it has a complete fuel injection engine that needs rebuilding. it was cheaper and I could never find all the fuel injection parts so compete. my question: is it doable to rebuild this engine as a high performance and maintain the fuel injection or I am ignorant? and if it is possible what are the parameters and special things that needs to be done? is the stock rebuilt Fuel injection engine going to give a better performance than what I have on described above? and who is a good fellow in southern cal who knows what he is doing. all suggestion are appreciated. thanks

Sun Jul 29, 2012 6:07 pm

hamid wrote: my question: is it doable to rebuild this engine as a high performance and maintain the fuel injection or I am ignorant?
"High performance"... No. Stock. Yes! The more fuel you can give your engine in the way it was designed the better.

Personally, I'd roll what you have now and build up complete and rebuilt 2.0 Fuel Injection system. The results will absolutely amaze you no question!

Mon Jul 30, 2012 5:12 am

hamid wrote: Hi
I have a 78 bus camper. it has a 2L with good compressions with dual weber 44. I just took it over interstate 5 to Sierra mountain in California and on 6% incline at 47-50 in third gear doing well. could not go any faster. outside temp 30 degrees centigrade( 86 F) and the oil temp steady at 220F. is this good, bad or ugly?

now i Have purchased another 78 bus for parting. it has a complete fuel injection engine that needs rebuilding. it was cheaper and I could never find all the fuel injection parts so compete. my question: is it doable to rebuild this engine as a high performance and maintain the fuel injection or I am ignorant? and if it is possible what are the parameters and special things that needs to be done? is the stock rebuilt Fuel injection engine going to give a better performance than what I have on described above? and who is a good fellow in southern cal who knows what he is doing. all suggestion are appreciated. thanks

For the best performance engine build a Camper Special. Raby 9550 cam/lifters, new 94mm pistons, valve train kit and new HAM amc heads with larger 42x36 valves.
95hp/120ftlbs of torque plus cooler CHT's so you can run a day without worry. Yeah big hills will slow you down but you can drive at 70 over all most all stuff and get 20mpg using the Ljet.

Mon Jul 30, 2012 8:07 am

thanks a lot for your tips. do I( my mechanic) have to do anything else with transmission etc. I was reading about the freeway flyer trans from Rancho.
of course the cost is also important. the present transmission is rebuilt and is good. and please educate me what is Raby 9550? thank you.

Sun Aug 05, 2012 1:28 pm

Hi Bleyseng

I talked to the mechanic and he says yes that could be done but then it will not pass the somg test due to the incereased emmison etc and the catalytic convertor is not able to handle it. it makes sense what is your opinion? thanks.

Tue Aug 07, 2012 9:38 am

Awesome T4 in a Fastback at a local show recently:

Tue Aug 07, 2012 9:41 am

Hydraulic and Non-Hydraulic Lifters Adjustment Stickers

(From my buddies '75 1800 F.I.)

(From the first page)
Philo Beddoe wrote:

Thu Dec 13, 2012 7:12 am

thewalrus wrote: Awesome T4 in a Fastback at a local show recently:

this photo above is a fuel injected type 3 engine, not a type 4. completely different engine in every way. i agree that's it's a very nice looking engine.

Thu Dec 13, 2012 7:57 am

germansupplyscott wrote: this photo above is a fuel injected type 3 engine, not a type 4. completely different engine in every way
My bad. You're right. #-o

I've always been jealous of the design of the T3 over the T4 or even T1 in that the T3 engine bay doesn't need to be completely sealed up like a bus or bus does.

Thu Dec 13, 2012 7:59 am

thewalrus wrote: germansupplyscott wrote: this photo above is a fuel injected type 3 engine, not a type 4. completely different engine in every way
My bad. You're right. #-o

I've always been jealous of the design of the T3 over the T4 or even T1 in that the T3 engine bay doesn't need to be completely sealed up like a bug or bus does.

fixed that for ya ;)