[Vwdiesel] piston meets combustion chamber plug

[Bart Wineland]

You are right that the gasket does overlap but it punched its way through 
it also. When you do get a chance to look there are several more pictures 
including one of the head gasket at 
http://merlin2.alleg.edu/employee/b/bwinelan/diesel/  You can start at the 
top and click through. some are boring and not clear. There is also a 
pretty good close up of the cylinder that was hurt (engine close1). I think 
it is bad enough to call the block junk but I sure would appreciate any 
opinions from anyone that has time to look.

Thanks!

At 04:33 PM 7/29/2004 -0400, you wrote:
>I haven't seen the picture yet, but doesn't the PCC overlap the head gasket?
>If so, then it shouldn't enter the cylinder.
>
>Val
>
> >
> > While I am getting ready to eventually pull the engine out of my car I
> > needed to first get my original '89 na junked engine off my engine stand.
> > Tearing it apart to learn what I can and salvage anything worth
> > keeping.  Thought if anyone wants to see what happens when a precombustion
> > plug comes loose, here is a link to a picture.
> > http://merlin.alleg.edu/employee/b/bwinelan/diesel/piston.JPG
> > The original owner must have driven it some time like this. The hammered
> > portion of the piston wore a groove in the cylinder wall until the blow by
> > and oil consumption got bad enough that he parked it.   I guess this is
> > thankfully not a common occurrence.  Tearing down has prompted a couple
> > questions coming soon and also a prayer. "Please God don't let my water
> > pump ever fail"  What a bugger it must be getting it out of a car with a/c
> > and p/s with the engine in the car.
> > Bentley shows how to knock the pre combustion plugs out to clean the
> > chamber but I would think it is inviting disaster and wonder why they even
> > suggest it.
> >
> > Bart
> >
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> >