Re: (8v) Adjusting valves?

[Nathan Malone <nmalone@sumagroup.com>]

This sounds more like a engine mount problem, if it was something in
the engine that was causing it to vibrate that much, I would think you
would have more problems and pretty major ones at that, but it doesn't
sound like it.  Park your car on level ground and put it in gear, then
manually push it back and forth, the engine and tranny mounts should
only let the engine rock back and forth a couple of inches (2 or 3) if
it is any more than that then I would start looking at the engine
mounts. As far as the lifters go, all they'll do is give off a tapping
sound, you'll hear them when they need adjustment, the sound comes from
the head and is pretty unmistakable, it is also more audible at idle
cause the engine isn't making noise to cover it up, and I have never
heard of lifters vibrating the whole engine.


HTH,
Nathan



Benjamin Harder wrote:

>  I am having a bit of a problem with the 1.8 8v (JH) motor
> that is in my '81 Scirocco (w/ solid lifter head).
> The motor used to rev smoothly and feely until recently
> when I have noticed it deteriorating in it's smooth rev'ing.
> When the engine rpm's rise to around 4000+ the engine starts
> to vibrate and gets worse as rpms climb.  The motor still
> idles fine, but starts to show weakness and vibration as the
> rpm's climb.  I'm afraid to rev it out anymore...
>   Could this be a sign for the need of a valve adjustment?
> What other signs might be noticed if the valves were in need
> of adjusting?  Will the valves start clicking?  Will this be
> most noticable at idle or while driving?
>
> TIA
>
> =====
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> Benjamin Harder
> 86 Scirocco 16v
> 81 Scirocco
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