head gasket with 1mm over bore - IDI Engine - VWDiesel.net The IDI, TDI, and mTDI source.

• head gasket with 1mm over bore by thomcat on 26 Mar, 2009 17:36
• Well I got my freshly faced pistons back from the machine shop, assembled the short block, then started looking at my 1.6 head gasket fit.
  Its close to the pistons , I wouldnt worry if it had alighnment dowels to hold it it place . But without them it can get a little close to the pistons.
   The engine is bored 1mm over, 1.6 na mech. Do I have anything to worry about? Any suggestions not involving spending a bunch of money too center the head gasket? I usualy use a little sealer despite the victor reins suggestion not too. but that wont help me with this prob lol.
• #1 by truckinwagen on 26 Mar, 2009 17:42
• if you have a pair of the old head bolts you can hack the head off of them, cut a slot(so you can unscrew them with a flathead scewdriver) and use them as alignment dowels.
  
  just screw them in, put the head on, install the rest of the headbolts, remove the two with a screwdriver and magnet, and put in the final two bolts.
  
  or you could buy a set of studs
• #2 by thomcat on 26 Mar, 2009 17:49
• Im running studs; I think ill back two of them out slightly to expose the  larger diameter threaded part. put the head on, snug it down. then run the studs back in . Sound like a plan?
• #3 by truckinwagen on 26 Mar, 2009 17:50
• sounds good to me, I wasnt sure if you were running studs or not.
  
  yeah, since the studs can be tightened down after the head is on that should work good
• #4 by Rabbit TD on 26 Mar, 2009 17:56
• If you are a little concerned about the gasket covering the bore just have piston 1 and 4 at TDC and when you drop the gasket on you will know it is clearing the bores.
• #5 by Vincent Waldon on 26 Mar, 2009 19:44
• AFAIK the gaskets are sized in such a way as to handle standard overbores... and I've never seen "overbore" gaskets available... so you're probably good to go.
• #6 by fatmobile on 26 Mar, 2009 22:31
• I pulled a head off and found the piston was smashing the gasket.
   Looked like it had been doing this for a long time. I pulled the head because of a leaking headgasket.
  
   Nowadays I set a headgasket in place and see how the edges line up before I set the head on it,..
   then check the edges before I bolt it down tight.
• #7 by zukgod1 on 27 Mar, 2009 08:37
• Quote from: "fatmobile"

  I pulled a head off and found the piston was smashing the gasket.
   Looked like it had been doing this for a long time. I pulled the head because of a leaking headgasket.
  
   Nowadays I set a headgasket in place and see how the edges line up before I set the head on it,..
   then check the edges before I bolt it down tight.

  
  
  
  1st time I've ever heard of that happeneing.