Re: [tech] valve adjustment

["Wm. Josiah Erikson" <josiah@gsinet.net>]

Thanks to Kevin and Shawn for the responses to my valve adjustment question.
Turns out they're all in spec- I checked 'em today. Got to replace the valve
cover gasket though, that's good- it was leaking fairly badly, especially by
the timing belt. Didn't go all rubber because I wanted to get it done today and
I couldn't get one around here.
    Turns out the reason I was idling roughly (and running badly) was that I
had my ignition timing too far advanced. I thought I'd been hearing
preignition, even with 93 octane, but I thought, "Couldn't be- must be my
exhaust leak" and let it go. But I twisted my distributor about 12 degrees
clockwise and it has so much more power now I can't believe it. Eh, I'll
actually put a TIMING LIGHT on it tomorrow- what a concept!
    Then: the fuel enrichment module that Brian Honnold helped me figure out! I
went to the junkyard the other day and picked up three of the relays that I
need for it (I only need one- just thought I'd get some extras in case it works
really well and I want to build some for other people). I'll let you all know
how it works.
    Then: (this winter) Autotech tri-Y header and 2.25" exhaust : ) with
probably whatever those cheapo mufflers are- Dynomax Super Turbo or something?
My local muffler shop will weld some nice hangers on and bend up the rest of
the pipe that I need.
    Thanks again all,
    -Josiah

Shawn C Meze wrote:

> On Sun, 25 Oct 1998 23:57:15 -0500 "Wm. Josiah Erikson"
> <josiah@gsinet.net> writes:
> >Hey guys...
> >    Just wanted to know any tips and tricks to adjusting the valves on
> >a
> >JH. I'm going to be doing it tomorrow, unless I find out that I need
> >some special tools that I can't get my hands on readily. I'll be reading
> >the Bentley, but wondered if there's anything that isn't in there that
> >would be good to know (Shawn? I know you did this recently.....)
>
> Recently? Dude, what do you think I do for a living? Im constantly
> adjusting valves, building sorry ass Diesel motors, doing engine swaps
> all that sort of sorry pathetic crap. (Its the booze talking....)
> So, what you need are something to measure the gap between the can and
> the lifters. Something to depress the tapets. Something to remove the
> shims. Something to measure the shims.
>
> So, measure the gap first. Intake is .008-.0012 and exhaust is
> .0016-.0020 in. Well, its all there in the bentley really. Haynes too.
> Measure the gap, if its out of spec, remove the shim, there should be a
> printing on the bottom of the shim, otherwise measure the shim with a
> micrometer. Do the math, install the right size shim. Takes all of 30
> minutes start to finish. Also, do it with the engine hot. If you don't
> have spare shims available to you, measure all the gaps, and of those
> that are out of spec, measure the shims. Do all 8 valves. Then write down
> the shims you have in each valve. if you have one that fits the spec for
> another valve, remove and install it where its needed. Then go buy the
> shims you need, install those and your all set.
>
> One helpful hint:
> Buy a rubber valve cover first. Makes the removal and installation of the
> valve cover easier.
> good luck.
>
>               Shawn Meze
> 86' Jetta GLi           82' Scirocco GTi
> The Fastest, Quickest, Cleanest and
> best looking Scirocco in all of San Diego!
> http://www.Geocities.com/MotorCity/Speedway/1308/index.htm
>
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