[Vwdiesel] Help - messed in the head...

[Shawn Wright]

On 15 Apr 2005 at 8:23, H .  Hagar. wrote:

> Any advice on how to proceed is appreciated. ThanksShawn Wright
> 
> Hagar sez ----- Shawn  RELAX   all is not lost.    ----post pictures of crack in
> swirlchamber insert and head in general  ----   numbers in casting etc.
> 
> It is common practice to drill a small hole at the end of the cracks to stop
> them from spreading.
> 
> Very important :    Ask how much was shaved off.
> 
> More on this as soon as you post pictures.
> 
> Hagar.
> 
> PS : it takes a good Barber to shave aluminium heads with fancy alloy inserts.  
> Grooves across head is NO PROBLEMO   ---I can help you there.

Ok, just got off the phone with the shop. They offered to dissassemble 
head & remove the paint. I said to please do so. (I will not pay for 
this).

Here's what he said about the rest: they've done dozens of VW 
diesels, and they all come out with a small amount of scoring from 
material coming off the precups, even though they do it wet. He said a 
mirror smooth finish would require their diamond cutter, and the 
precups will destroy the cutter (is this true? I though diamond was 
pretty hard...). He assured me they have not had any problems with 
VW diesels heads done like this. 
He also said the cracked precup was not a problem, and that 
replacing & machining one to fit would be 1.5 hours. He says they 
often are cracked, and do not cause a problem. 
I will try to pick it up later today and take some pics.

On the plus side, the welding job they did on the coolant cavity 
appears excellent - I had a hard time even spotting it.


-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Shawn Wright, I.T. Manager
Shawnigan Lake School
http://www.sls.bc.ca
swright at sls.bc.ca