Re: tachometer on 4kqRe: quattro-digest V3 #817

[mallick@orion.crd.ge.com (John Mallick)]

PAT MARTIN wrote:
> 
> I have noticed my tach hangs up on 5k for a second and then jumps to 6k but
> the motor is linear.  What could be causing this.  The tach is electronic so
> there isn't anything to lube is there?
> 
> Thanx for any help
> 
> Pat Martin
> 864000csq 2 1/2 cat back, H&R-Boge,advanced and loving it.  Drilled and
> stopping it.  Koenig Cobra 16x7 with AVS Intermediates.
> 95 subaru legacy awd: so stock it hurts
> Bothell,WA

On my '84 4000sq, the tachometer will sometimes whirl over to the pin
or just wander around aimlessly.  Then, all of a sudden, it works
fine.  It seems to be temperature dependent.  Done it since I bought
the car new.  I suspect a cold solder joint somewhere in the guts of
the tach or a bad trace on the flexible PWB in the instrument cluster,
but have never fixed it.  Hey...it's an Audi...

John M.