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Re: [T3] White exhaust?


<x-charset iso-8859-1>On Tuesday 30 October 2001 09:31, Jim Adney wrote:
> On 30 Oct 2001, at 1:08, Mike Wodkowski wrote:
> > OK, so last week I set my valves, .004 intakes, .006 exhaust.
> > I noticed Russ said he set his at a loose .004 and a tight .006
> > That was after I did mine, which were set to a tight .004 and a tight
> > .006 I haven't had a chance to loosen the intakes yet.
>
> This really get pretty subjective quickly. You don't ever want to adjust
> the valves to a "tight" anything, because then you don't really know what
> you have. To me at least, "tight" would mean that I've actually started to
> compress the valve spring, and once you do this you can't tell by how much.
> So a "tight" .004 could be .002 or .000 which would definitely bad.
>
> The same thing pretty much happens with "loose."
>
> You have to get the feel for just that intermediate amount of drag that
> signifies that you are right there, just squeezing on the feeler gauge, but
> not exerting the force of the valve spring.
>
This is one reason I use go/no-go feeler guages. The end of a .006 feeler 
gauge is ground to .004. For a loose .004 at the intakes, the end will move 
freely, but the .006 portion won't go. This means I am between .004 and .006. 
For the exhaust, I set them so the .006 just goes through.
I get my go/no-go feeler gauges from my local Snap-On dealer. I am sure they 
can be purchased at many other places. They just take a lot of guesswork out 
of adjusting the valves.

-- 
Russ Wolfe
'71 Fastback AT
'66 Fastback MT (IT RUNS)
russw@classicvw.org
http://www.classicvw.org

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