[Vwdiesel] What is the candle wax GP extraction trick ?

[Val Christian]

Candle wax applied when the cyl head is warm.  It'll melt and creep it's
way inward.  Do for several days.  

Instead of WD-40 (detergent and fishoil), consider PB-Blaster or 
the Liquid Wrench penetrating oil. Lighter oil.  Still with 
detergent (as a wetting agent).

I'd do the extraction with the cyl head at a temp that makes it 
easy for you to work carefully.  The differing coefficients of 
expansion (for the different metals) will not be a big deal.
Avoid real cold (0F) as metals in tools become brittle.

Val



> 
> I've been spraying WD-40 and every other day some penetrating oil, on my
> stuck and dead GP, but someone offhandedly mention a "wax trick".
> For some reason I am unable to search the archives from here at work. Web
> geeks have site blocked or something.
> Who can give me a real quick explanation of what that's about please?
> 
> Also, do you think that trying to extract said glowplug while engine is
> still hot would help at all ?
> 
> Thanks
> 
> Mike in NB
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