Author Topic: wall clearance for 2.4 diesel 1st oversize  (Read 3462 times)

July 16, 2007, 06:22:59 pm

Mk2Fanatic

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wall clearance for 2.4 diesel 1st oversize
« on: July 16, 2007, 06:22:59 pm »
Federal Mogul 1st oversize pistons, local machine shop wants to know piston to wall clearance.  Any recommendations?  European mechanic says .001mm , my machine shop says that's too tight they recommend .003mm-.004mm).  what's your opinions?  it's for 2.4 td eurovan
5 VW's: Mojave beige (LE1N) Mk1 rabbit 16V; Mk2 Jetta wolfsburg TDI conversion;Mk2 1.6TD Twin Charged Project; 86Mk2 1.6TD Jetta (daily); 1988 1.6NA Jetta; 1994 Passat 1.9TD donor

Reply #1July 16, 2007, 06:36:36 pm

Vincent Waldon

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wall clearance for 2.4 diesel 1st oversize
« Reply #1 on: July 16, 2007, 06:36:36 pm »
Andrew will hopefully chime in, but I believe it is 0.0012 inch (0.03 mm) ... typical machines shops will balk 'cause this seems tight... but these engines are built to exacting tolerances.

The Bentley for the A2's confirms this:

http://www.oneilcastro.com/A2Bentley/GE01/ch6.2.1.html

(near the bottom)

and I don't suspect the 2.4 would be any different, given that they are pretty much 1.6 with an additional cylinder ??


Vince

BTW, my bro has the same engine and van.... nice ride !!
Vince

Edmonton, Alberta, Canada
2001 silver TDI Jetta Malone Stage 1.5 , 2001 blue TDI Jetta SBIII 216s Malone Stage 3, 1970 Bay Window bus

Gone but not forgotten: 1969/1971 Beetles, 1969/1974 Westies, 1979 Rabbit, 1986 TD Jetta, 1992 gas Jetta, 1994 TD Jetta

Reply #2July 16, 2007, 06:47:46 pm

Mk2Fanatic

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wall clearance for 2.4 diesel 1st oversize
« Reply #2 on: July 16, 2007, 06:47:46 pm »
Thanks for the info.  I thought so, but wanted to verify it was the same as the 1.6/1.9.
5 VW's: Mojave beige (LE1N) Mk1 rabbit 16V; Mk2 Jetta wolfsburg TDI conversion;Mk2 1.6TD Twin Charged Project; 86Mk2 1.6TD Jetta (daily); 1988 1.6NA Jetta; 1994 Passat 1.9TD donor

Reply #3July 16, 2007, 07:08:26 pm

Vincent Waldon

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wall clearance for 2.4 diesel 1st oversize
« Reply #3 on: July 16, 2007, 07:08:26 pm »
Well, its just a guess.... !!
Vince

Edmonton, Alberta, Canada
2001 silver TDI Jetta Malone Stage 1.5 , 2001 blue TDI Jetta SBIII 216s Malone Stage 3, 1970 Bay Window bus

Gone but not forgotten: 1969/1971 Beetles, 1969/1974 Westies, 1979 Rabbit, 1986 TD Jetta, 1992 gas Jetta, 1994 TD Jetta

Reply #4July 16, 2007, 09:40:03 pm

gambit420s

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wall clearance for 2.4 diesel 1st oversize
« Reply #4 on: July 16, 2007, 09:40:03 pm »
Quote from: "Vincent Waldon"
and I don't suspect the 2.4 would be any different, given that they are pretty much 1.6 with an additional cylinder ??

what 5 cyl is 2.4?
1.6/4=.4 .4x5=2.0 .4x6=2.4

wait i think i might be stupid
1.9/4=.475 .475x5=3.75

Reply #5July 16, 2007, 10:01:10 pm

Vincent Waldon

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wall clearance for 2.4 diesel 1st oversize
« Reply #5 on: July 16, 2007, 10:01:10 pm »
Yeah, I've never done the math (and it looks like the cylinders are somewhere between 1.6 and 1.9) but if you look under the hood you see a lot of the same parts... have to blink twice to notice the 5th line off the IP.

There are some differences as well... the timing belt is on the other side of the engine as I recall.  Haven't tried timing it yet... might be an experience.  Documentation is a bit lacking... the Bentley is very very thick and insanely expensive, even for a Bentley.


Vince
Vince

Edmonton, Alberta, Canada
2001 silver TDI Jetta Malone Stage 1.5 , 2001 blue TDI Jetta SBIII 216s Malone Stage 3, 1970 Bay Window bus

Gone but not forgotten: 1969/1971 Beetles, 1969/1974 Westies, 1979 Rabbit, 1986 TD Jetta, 1992 gas Jetta, 1994 TD Jetta

Reply #6July 17, 2007, 03:33:21 am

Audi80

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wall clearance for 2.4 diesel 1st oversize
« Reply #6 on: July 17, 2007, 03:33:21 am »
5 cylinder 2,4 is internally 1,9NA with one extra cylinder.

Reply #7July 17, 2007, 12:57:55 pm

gambit420s

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wall clearance for 2.4 diesel 1st oversize
« Reply #7 on: July 17, 2007, 12:57:55 pm »
Quote from: "gambit420s"
Quote from: "Vincent Waldon"
and I don't suspect the 2.4 would be any different, given that they are pretty much 1.6 with an additional cylinder ??

what 5 cyl is 2.4?
1.6/4=.4 .4x5=2.0 .4x6=2.4

wait i think i might be stupid
1.9/4=.475 .475x5=2.375

i cant even do math right today

Reply #8July 17, 2007, 03:31:44 pm

Black Smokin' Diesel

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wall clearance for 2.4 diesel 1st oversize
« Reply #8 on: July 17, 2007, 03:31:44 pm »
Quote from: "gambit420s"
Quote from: "gambit420s"
Quote from: "Vincent Waldon"
and I don't suspect the 2.4 would be any different, given that they are pretty much 1.6 with an additional cylinder ??

what 5 cyl is 2.4?
1.6/4=.4 .4x5=2.0 .4x6=2.4

wait i think i might be stupid
1.9/4=.475 .475x5=2.375

i cant even do math right today


Haha I was about to correct you on that one :P
91 Passat syncro 1.8T swapped.

Reply #9July 18, 2007, 05:30:25 am

myke_w

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wall clearance for 2.4 diesel 1st oversize
« Reply #9 on: July 18, 2007, 05:30:25 am »
http://vwdieselparts.com/rebuildi.htm

Print that off and hand it to them..
Contact me for hard to find for idi and tdi parts