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1967250s
Samba Member
Joined: May 02, 2007
Posts: 2137
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 Posted: Fri Mar 29, 2013 12:30 pm Post subject: |
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| Can't you use the plexi plate for the head to cc the piston heads? Or just make a flat plexi plate with a hole and just set it on there? And is that head clearance measured from the edge of the piston or the center? It looked like that one piston had a valve strike. Were the valves checked for sealing? Valve springs checked? Do you have ratio rockers? You might have a bent valve or worn guides. The heads are the biggest problem on these engines. The bottom end is fairly easy to get done right and pretty bullet proof. Check all head geometry carefully. |
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WI sportmobile
Samba Member
Joined: August 10, 2010
Posts: 268
Location: Waukesha, WI
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| Posted: Fri Mar 29, 2013 1:29 pm Post subject: |
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| 1967250s wrote: |
| Can't you use the plexi plate for the head to cc the piston heads? Or just make a flat plexi plate with a hole and just set it on there? And is that head clearance measured from the edge of the piston or the center? It looked like that one piston had a valve strike. Were the valves checked for sealing? Valve springs checked? Do you have ratio rockers? You might have a bent valve or worn guides. The heads are the biggest problem on these engines. The bottom end is fairly easy to get done right and pretty bullet proof. Check all head geometry carefully. |
The heads have new guides, reground valves. The springs and sealing were tested out. Not sure what ratio rockers are, I have the stock t4 1700 rockers.
I am measuring on the side of the dish over the pin across the center line. Yes, that piston does appear to have valve strike but the ding doesn't seem to line up with the valve in relationship to the arrow pointing towards the fly wheel.
Still wondering if I need to add the thickness of the metal gaskets that go between the top of the cylinder and the head to the deck height. Any help would be great.
_________________
73 VW T2 Sportsmobile T4 1800 dual webber ICT's
06 TOY Tacoma TRD
Don't mess with the DNR.
"Bargain hunter becomes the bargain hunted." |
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old DKP driver
Samba Member
Joined: March 30, 2005
Posts: 4145
Location: Los Gatos,Ca.
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| Posted: Fri Mar 29, 2013 4:00 pm Post subject: head gaskets |
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You need to delete the head gasket sealing rings and lap the cylinders
into the heads once you have your deck height done on all 4 cylinders.
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V.W.owner since 1967 |
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WI sportmobile
Samba Member
Joined: August 10, 2010
Posts: 268
Location: Waukesha, WI
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| Posted: Fri Mar 29, 2013 4:14 pm Post subject: Re: head gaskets |
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| old DKP driver wrote: |
You need to delete the head gasket sealing rings and lap the cylinders
into the heads once you have your deck height done on all 4 cylinders. |
Are you refering to the tech bullitin from 1990? I read that and thought it only applied to 2000 t4 engines. Not sure how I would lap the the cylinders never heared of that before. Now I'm even more confused.
_________________
73 VW T2 Sportsmobile T4 1800 dual webber ICT's
06 TOY Tacoma TRD
Don't mess with the DNR.
"Bargain hunter becomes the bargain hunted." |
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WI sportmobile
Samba Member
Joined: August 10, 2010
Posts: 268
Location: Waukesha, WI
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| Posted: Sun Apr 07, 2013 5:44 pm Post subject: |
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I got the long block done!
Here's what I ended up with:
Bore: 90 mm
Stroke: 66 mm
CC chamber: 57 cc
Deck: 0.039"
Ratio: 7.6
I did CC the pistons and the heads. The piston dish is 5cc. The head CC is 52cc. I was wondering about the threaded length of some spark plugs I've seen and the relationship of the chamber. I used Bosch for the measurement.
Box O'lifter cakes, I used the thicker stuff provided with the Cam on the top and Mahle lube on the sides.
Long block
Back at the shop with the bus
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73 VW T2 Sportsmobile T4 1800 dual webber ICT's
06 TOY Tacoma TRD
Don't mess with the DNR.
"Bargain hunter becomes the bargain hunted." |
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WI sportmobile
Samba Member
Joined: August 10, 2010
Posts: 268
Location: Waukesha, WI
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| Posted: Sun Apr 07, 2013 6:14 pm Post subject: |
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Fan shroud blasted and powder coated. The High gloss really brought out some imperfections in the casting but the numbers match my owners manual.
I was cleaning up the muffler today and found this under the rust.
I could tell it was a 411 muffler by the orientation of the tail pipe, but I had no idea that it was an original from '72.
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73 VW T2 Sportsmobile T4 1800 dual webber ICT's
06 TOY Tacoma TRD
Don't mess with the DNR.
"Bargain hunter becomes the bargain hunted." |
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old DKP driver
Samba Member
Joined: March 30, 2005
Posts: 4145
Location: Los Gatos,Ca.
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| Posted: Sun Apr 07, 2013 7:05 pm Post subject: short block done |
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Martin, Nice job!
P.S. MORE LUBE on all the lifters and cam.
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V.W.owner since 1967 |
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raygreenwood
Samba Member
Joined: November 24, 2008
Posts: 21520
Location: Oklahoma City
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| Posted: Sun Apr 07, 2013 7:07 pm Post subject: |
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| Get rid of that muffler as soon as possible. It is a damper type muffler and was one the most restreictive of them all. It is quiet but runs very hot. Ray |
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WI sportmobile
Samba Member
Joined: August 10, 2010
Posts: 268
Location: Waukesha, WI
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| Posted: Sun Apr 07, 2013 7:15 pm Post subject: Re: short block done |
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| old DKP driver wrote: |
Martin, Nice job!
P.S. MORE LUBE on all the lifters and cam. |
For sure!! I did use more lube than that. Caked it all around the top and the sides. Just thought it made a nifty lookin photo with them still in the box.
_________________
73 VW T2 Sportsmobile T4 1800 dual webber ICT's
06 TOY Tacoma TRD
Don't mess with the DNR.
"Bargain hunter becomes the bargain hunted." |
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WI sportmobile
Samba Member
Joined: August 10, 2010
Posts: 268
Location: Waukesha, WI
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| Posted: Sun Apr 07, 2013 7:20 pm Post subject: |
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| raygreenwood wrote: |
| Get rid of that muffler as soon as possible. It is a damper type muffler and was one the most restreictive of them all. It is quiet but runs very hot. Ray |
Wow, never thought of it as quiet. I'm planing on getting a new Dansk (sp?) one as soon as I can afford it. Most likely next winter.
_________________
73 VW T2 Sportsmobile T4 1800 dual webber ICT's
06 TOY Tacoma TRD
Don't mess with the DNR.
"Bargain hunter becomes the bargain hunted." |
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WI sportmobile
Samba Member
Joined: August 10, 2010
Posts: 268
Location: Waukesha, WI
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| Posted: Sun Apr 21, 2013 6:45 pm Post subject: |
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_________________
73 VW T2 Sportsmobile T4 1800 dual webber ICT's
06 TOY Tacoma TRD
Don't mess with the DNR.
"Bargain hunter becomes the bargain hunted." |
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Thirstytank
Samba Gaucho
Joined: August 05, 2005
Posts: 667
Location: Lake Geneva WI
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| Posted: Sun Apr 21, 2013 7:28 pm Post subject: |
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| Looks great!!! |
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raygreenwood
Samba Member
Joined: November 24, 2008
Posts: 21520
Location: Oklahoma City
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| Posted: Sun Apr 21, 2013 8:25 pm Post subject: |
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| WI sportmobile wrote: |
| raygreenwood wrote: |
| Get rid of that muffler as soon as possible. It is a damper type muffler and was one the most restreictive of them all. It is quiet but runs very hot. Ray |
Wow, never thought of it as quiet. I'm planing on getting a new Dansk (sp?) one as soon as I can afford it. Most likely next winter. |
Quiet is relative. Of the stock exhausts...it is the most quiet....if not...you have exhaust leaks. If you have tine look for an Ernst muffler. Ray |
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WI sportmobile
Samba Member
Joined: August 10, 2010
Posts: 268
Location: Waukesha, WI
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| Posted: Sat Apr 27, 2013 6:20 pm Post subject: |
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Install Pics.
Those dang Dansk heat risers fit like shit. They had to be removed and just barely fit after the engine was in. The right side riser had to be modified so it would clear the starter. We ground off the weld spots and re welded the bracket to a clamp so it would match up and attach to the breast plate. The angle was way off.
I was holding my breath win I turned the key.... After a few trys it fired up.
Yahtzee!!! Ran it for 20 min at 2000 rpm and shut it down.
_________________
73 VW T2 Sportsmobile T4 1800 dual webber ICT's
06 TOY Tacoma TRD
Don't mess with the DNR.
"Bargain hunter becomes the bargain hunted." |
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busdaddy
Samba Member
Joined: February 12, 2004
Posts: 51153
Location: Surrey B.C. Canada, but thinking of Ukraine
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| Posted: Sat Apr 27, 2013 7:04 pm Post subject: |
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Caption:
You're not the boss of me! Prepare to be owned!
Nice work and congratulations! WELL DONE! 
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Rust NEVER sleeps and stock never goes out of style.
Please don't PM technical questions, ask your problem in public so everyone can play along. If you think it's too stupid post it here
Stop dead photo links! Post your photos to The Samba Gallery!
Слава Україні! |
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WI sportmobile
Samba Member
Joined: August 10, 2010
Posts: 268
Location: Waukesha, WI
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| Posted: Sat Apr 27, 2013 7:53 pm Post subject: |
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Thank you. There are a few odds and ends that I need to take care of but all and all I'm very happy right now. The satisfaction of that moment was huge. Every baggy of nuts and bolts went back into place. Taking my time six months ago really paid off.
_________________
73 VW T2 Sportsmobile T4 1800 dual webber ICT's
06 TOY Tacoma TRD
Don't mess with the DNR.
"Bargain hunter becomes the bargain hunted." |
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old DKP driver
Samba Member
Joined: March 30, 2005
Posts: 4145
Location: Los Gatos,Ca.
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| Posted: Sat Apr 27, 2013 9:18 pm Post subject: finISHED ENGINE |
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Nice to see your grin from You.
Break it in properly 
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V.W.owner since 1967 |
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rustbus
Samba Member
Joined: June 18, 2009
Posts: 2078
Location: alberta
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| Posted: Sat Apr 27, 2013 9:34 pm Post subject: |
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| WI sportmobile wrote: |
Install Pics.
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very nice build and install - so clean i love it
i'd love to build a 1700
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May of '72 Deluxe.  2.0L L-Jet CS & 091 trans conversion
my Bus thread |
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WI sportmobile
Samba Member
Joined: August 10, 2010
Posts: 268
Location: Waukesha, WI
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| Posted: Sun Apr 28, 2013 11:23 am Post subject: |
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| rustbus wrote: |
very nice build and install - so clean i love it
i'd love to build a 1700 |
Thank you, I thought about painting the engine compartment but wanted to keep a little og paint. Also that black undercoating stuff from Ziebart was very hard to remove. It was most likely done 20 to 30 years ago. I would not have gotten down to a good paintable surface. There are dozens of yellow plugs thrugh out the frame with their logo. That Ziebart stuff really preserved the body nicely. It is very solid.
_________________
73 VW T2 Sportsmobile T4 1800 dual webber ICT's
06 TOY Tacoma TRD
Don't mess with the DNR.
"Bargain hunter becomes the bargain hunted." |
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| Back to top |
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raygreenwood
Samba Member
Joined: November 24, 2008
Posts: 21520
Location: Oklahoma City
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| Posted: Sun Apr 28, 2013 5:18 pm Post subject: |
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| What you found with the Dansk heat risers...ugly welds....are also common with their type 4 mufflers. All in all...good solid parts ....but very sloopy welds and difficult fit. Ray |
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