wall clearance for 2.4 diesel 1st oversize - IDI Engine - VWDiesel.net The IDI, TDI, and mTDI source.

• wall clearance for 2.4 diesel 1st oversize by Mk2Fanatic on 16 Jul, 2007 18:22
• 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
• #1 by Vincent Waldon on 16 Jul, 2007 18:36
• 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 !!
• #2 by Mk2Fanatic on 16 Jul, 2007 18:47
• Thanks for the info.  I thought so, but wanted to verify it was the same as the 1.6/1.9.
• #3 by Vincent Waldon on 16 Jul, 2007 19:08
• Well, its just a guess.... !!
• #4 by gambit420s on 16 Jul, 2007 21:40
• 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
• #5 by Vincent Waldon on 16 Jul, 2007 22:01
• 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
• #6 by Audi80 on 17 Jul, 2007 03:33
• 5 cylinder 2,4 is internally 1,9NA with one extra cylinder.
• #7 by gambit420s on 17 Jul, 2007 12:57
• 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
• #8 by Black Smokin' Diesel on 17 Jul, 2007 15:31
• 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
• #9 by myke_w on 18 Jul, 2007 05:30
• http://vwdieselparts.com/rebuildi.htm
  
  Print that off and hand it to them..