TDI vs IDI head external signs - IDI Engine - VWDiesel.net The IDI, TDI, and mTDI source.

• TDI vs IDI head external signs by haybayian on 03 Feb, 2008 04:38
• Could someone tell me what the external signs of a TDI head are versus the IDI's. I am working on a reman 1.9  TD  and I would like to make sure that the shop did not sell me an IDI engine with a TDI head. I am aware that this may be a profoundly stupid question, but bear with me I am new to these engines.
  
  Thanks.
  Haybayian
• #1 by dillenger1 on 03 Feb, 2008 04:59
• The valve cover will have recesses for the cover bolts.The side profile looking down is wavy on a tdi.Also the oil cap looks like a gas cap on the tdi.HAHA i dont know if this helps i dont have any cating no.s
• #2 by jimfoo on 03 Feb, 2008 06:25
• It doesn't have threaded holes for the injectors.  Your injector lines won't fit on the injectors.
• #3 by haybayian on 03 Feb, 2008 06:28
• Quote from: "dillenger1"

  The valve cover will have recesses for the cover bolts.The side profile looking down is wavy on a tdi.Also the oil cap looks like a gas cap on the tdi.HAHA i dont know if this helps i dont have any cating no.s

  
  
  My hope is that someone here will be familiar with the actual alloy castings; they are bound to bear different numbers and perhaps ports size and locations.
  Thanks for trying.
• #4 by jimfoo on 03 Feb, 2008 06:32
• Ports are the same. Just look at my IDI to TDI thread and you will see what a TDI head looks like(of the only kind that would fit on). The upper water hose has the bolts vertically instead of diagonally.
• #5 by jimfoo on 03 Feb, 2008 06:38
• Well crap, I guess I have to fix the links to the pics. Guess it's my host's problems.
• #6 by jimfoo on 03 Feb, 2008 07:04
• Ok, pics are back. Here is what a TDI head would look like.
  
  If yours doesn't look like that, then it isn't one.
• #7 by haybayian on 03 Feb, 2008 07:10
• Quote from: jimfoo

  Ok, pics are back. Here is what a TDI head would look like.
  
  
  Thanks very much Jim,
  Yes I can see the shape of the casting (Wavy line). Mine is indeed an IDI.