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Engine Specific Info and Questions => IDI Engine => Topic started by: Mk2Fanatic on July 16, 2007, 06:22:59 pm

Title: wall clearance for 2.4 diesel 1st oversize
Post by: Mk2Fanatic 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

Title: wall clearance for 2.4 diesel 1st oversize
Post by: Vincent Waldon 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 !!

Title: wall clearance for 2.4 diesel 1st oversize
Post by: Mk2Fanatic 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.

Title: wall clearance for 2.4 diesel 1st oversize
Post by: Vincent Waldon on July 16, 2007, 07:08:26 pm

Well, its just a guess.... !!

Title: wall clearance for 2.4 diesel 1st oversize
Post by: gambit420s 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

Title: wall clearance for 2.4 diesel 1st oversize
Post by: Vincent Waldon 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

Title: wall clearance for 2.4 diesel 1st oversize
Post by: Audi80 on July 17, 2007, 03:33:21 am

5 cylinder 2,4 is internally 1,9NA with one extra cylinder.

Title: wall clearance for 2.4 diesel 1st oversize
Post by: gambit420s 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

Title: wall clearance for 2.4 diesel 1st oversize
Post by: Black Smokin' Diesel 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

Title: wall clearance for 2.4 diesel 1st oversize
Post by: myke_w on July 18, 2007, 05:30:25 am

http://vwdieselparts.com/rebuildi.htm

Print that off and hand it to them..