Raceware and Diesel (was: Tightening headbolts...)

[mr.utility at highstream.net (David Utley)]

This is the source of the difference in experience...  Aftermarket re-use type 
bolts have a different tightening procedure than factory.  Factory bolts are 
stretch bolts, use them once and throw them away, while the re-use bolts do 
not stretch at all...  (Now if someone comes back and tells me for every 
hundred foot/lb, the stretch .000000023548 microns...  :-P)
-- 
Regards,
David Utley
-----------
Cable Volkswagen
405-470-3129
1-800-522-6793


Quoting chris gonzalez <chris24g@yahoo.com>:

> This is my 1st time with the raceware fasteners. So far, so good, but time
> will tell if they hold their torque. I will be very upset if I have to change
> that diesel gasket again, especially after the cost of those bolts! What kind
> of leaks did your previous engine develop? 
> 
> Drew MacPherson <drew@scirocco.cs.uoguelph.ca> wrote:
> Yes, reacewares are not torque angle, so the torque specs are very 
> different than stock stretch bolts. Is this your first run with the 
> racewares on your diesel? I'm thoroughly unimpressed with the set of 
> racewares I purchased 8 or 9 years ago now - I've used them on 4 different 
> engines (the last one I was foolish enough to try twice) and keep 
> reverting back to stock stretch bolts for a reliable seal.
> 
> Drew
> 
> On Tue, 3 Feb 2004, chris gonzalez wrote:
> 
> > Ah, yes I was using raceware studs/fasteners on my diesel. Make sure you
> > chase the threads and blow out the bolt holes, or your torque readings
> > will be different for each bolt. Oh, and raceware themselves recommend
> > using the beam type torque wrench vs. click or dial torque wrenches.
> > They went as far as to say they recommend NOT using click or dial
> > wrenches.
> > 
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> | 84 Wolfsburg Edition TurboDiesel Scirocco |
> | http://scirocco.cs.uoguelph.ca/gtd |
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