[Vwdiesel] Compression Check / Clearances.

[Dana Morphew]

Also, the 0.0012 spec is for the cast pistons. My forged pistons require 0.003 and
can only be THAT tight because my 1.9 n.a. is for relatively light duty use.

Dana


>> Also I read piston clearance is around
>>
>> .0012" Is this correct? Seems kind of tight. IS the clearance specs right?
>>
>
>   That's correct.  That's the reason many rebuilds will not be up to spec.
> Most machine shops will all but REFUSE to bore that tight.  Mine wanted
> to bore to almost .0025 because another car place has them do it to that. :o
> I had to show them in black and white to get them to do it right.  Otherwise
> I'd expect them to be bored almost to wear limit!
>      Loren