Oil in Coolant - page 2 - IDI Engine - VWDiesel.net The IDI, TDI, and mTDI source.

• #15 by maxfax on 20 Feb, 2011 15:43
• From what I understand is ALL the diesel engines were made and assembled in Germany but shipped to where ever the car was built....  My guess is that there were some left over 11mm engines floating around that got used on '82 models.. TO be honest, I've never found a 12mm '82 model in this neck of the woods..
• #16 by R.O.R-2.0 on 21 Feb, 2011 08:26
• i dont find 12mm cars over here till 83/4 cars..
  
  everything else has 11mm engines. and they are the correct numbers matching engine too.
• #17 by jaysen71581 on 21 Feb, 2011 11:10
• Just make sure there are no cracks in the motor either, look at where the head bolts to the motor on the passenger side of the motor, found that out the hard way ...
• #18 by rdezsofi on 23 Feb, 2011 07:40
• Quote from: maxfax on 20 Feb, 2011 15:43

  From what I understand is ALL the diesel engines were made and assembled in Germany but shipped to where ever the car was built....  My guess is that there were some left over 11mm engines floating around that got used on '82 models.. TO be honest, I've never found a 12mm '82 model in this neck of the woods..
  

  
  .....uh.....not exactly. I'm working on a 1.6 that has 'Germany' stamped on the outside. I know for a fact the motor has never been opened. However, on one of the main bearing caps, it clearly says 'Mexico.' I think it's likely the blocks were cast in germany and sent to Mexico or wherever for the final work.
• #19 by Quantum TD on 23 Feb, 2011 09:21
• That, and nearly all of the 11mm 1.6 Blocks I've seen here in the USA were cast in Brazil: and they're junk castings aside from (or in conjunction with) the fact that the bolt holes crack. The bores wear out faster than similar-mileage German castings.
  
• #20 by maxfax on 23 Feb, 2011 12:06
• Correction
  
  

  Quote from: maxfax on 20 Feb, 2011 15:43

  From what I understand is ALL the diesel engines were made and assembled  made/assembled in Germany
  

  
  But indeed not everything was cast in Germany.. And I should also add AFAIK it was just the earlier (mostly 11mm) engines..
  
  
   I've had about 50/50 Brazilian cast / German cast blocks..  Oddly enough I have one of the Brazilian blocks with no cracks in the deck around the bolt holes, the crack was in the bore..  
  
  
• #21 by trav1856 on 06 Mar, 2011 11:26
• Drained the oil today. There's no coolant in the oil, so I suspect it's either headgasket leakage, or it's leaking up a bolt and into the coolant. (then again, maybe the previous owner was an idiot and bought into the "oh just add a quart of oil into the coolant" school of thought)
  
  So the next step will be to drain my coolant and just keep an eye on it for oil.
  
  
• #22 by Vincent Waldon on 06 Mar, 2011 11:38
• Oil pressure = 80+ psi
  
  Coolant pressure = 15 psi
  
  So, you'll almost always find oil in the coolant with a oil-to-coolant passage headgasket breach,  but rarely the other 'way round... 80 psi > 15 psi.