[Vwdiesel] Re: [Audi-VW-Diesels] valve shims & pliers

[nwall at opei.org]

1.  The the valve order you listed is correct.

2.  Worn convex? I've never seen a shim wear un-uniformly. I'd replace any shim
worn like that. Perhaps they are not worn that much.

3.  They wear ever so slowly. I maybe had to go one shim thickness thinner
about three times in 200,000 miles. That's on three valves at different
times ONLY!

--Nate


Quoting dennis pantazis <dennis at pantazis.org>:

> greetings all:
>
> today was a cold day in chicago! worked on the car for a good bit. making
> some headway on getting my 85 golf 1.6NA back on the road. todays's task
> was
> valve adjustment and shims.
>
> biggest triumph was using a pair of $8 hardware store outside calipers in
> place of the vw special tool to remove the shims. i usually never buy
> general branded merchandise, but when i saw them hanging at the hardware
> store, i thought for the price why not. and they worked! i had to file the
> end of the jaws a bit to make it narrower to fit the slot, and if i
> tightened them up too much they would start to spring, but after the first
> 2-3 i figured it out enough to make short work of it.
>
> a couple of questions to those in the know-
>
> 1. order of valves: i looked in bentley but could not find a diagram or
> description for order of valves. i think i figured it out by lookig at the
> manifolds, but if someone could check out my work, i would appreciate it.
> order of valves looking at engine, #1 on left- e for exhaust and i for
> intake.
>
> cyl    1    2    3    4
> valve e i  e i  i e  i e
>
> 2. valve shims: the shims are worn like a donut, center is high, etched
> shim
> thickenss is readable. i mic'd both outer worn surface and center which was
> not worn to verify the original thickness. so my quandry is this, what
> thikness do i base my new shim on, the center or the edge where it is worn?
> i would assume the outer which is where the shim bears against the keeper.
>
> 3. rate of wear: this has me a bit concerned. a couple of my shims are
> thin,
> 3.35 mm on the intake valves. for now, they are in spec, but on the low
> side
> of the range (0.007" and 0.008"). i assume that my valves are receeding
> like
> all valves do. how long before i run out of shim and need to do a valve
> job?
> i realize that this is sort of a rhetorical question, but i ask others with
> more experience with these engines how often did they find that they had to
> change shims? i know i have to check yearly or 15k miles, that is a check,
> not a replacement guideline. did you change shims every 15k miles?
>
> thanks in advance
>
> dennis
>
>
>
>
>
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