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

[Shawn Wright]

On 31 Jan 2005 at 10:46, Smith, Michael <Michael.Smith at rvh.nb.ca> wrote:

> 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 ?

I believe it involves dribbling candle was over the part when hot - it should melt and 
wick up the threads (in theory). I've never tried it. Definitely remove them hot, and 
perhaps even heat the area around GP with a torch also. I had to use a torch to 
remove the valve cover studs from the head - I was surprised how stuck they were, 
and how much heat had to be used. Since aluminum expands more than iron, just 
head the head, not the GP.
--
Shawn Wright
I.T. Manager
Shawnigan Lake School