[T3] Rattlesnake noise...

[Jim Adney]

On 1 Sep 2011 at 15:03, J. Jonik wrote:

> 71' Std.  FI
> 
> This isn't about knocking, but about a rattlesnake-like rattle in the
> engine department.   It happens when Not Quite solidly into one gear or
> another.  It goes away when driving or giving it a little rev. 

Not sure what you mean by "not quite solidly into one gear or 
another." Does it happen at idle?

> Maybe that's about the idle set a little too low?   Or is is about lazy
> shifting?  Other? 

Probably not an idle issue. Please clarify what effect shifting has 
on this.

>   Valves are set at .005 (if I got that decimal right)...though one
> was a BIT too narrow for the blade, but with some gap.  Readjusted
> now.   Rattle still happened. 

Prob not a valve lash problem.

>  Question is...what exactly is rattling?  Valves?   If so, why? 

You're closer; you'll have to tell us. Get a long screwdriver and 
stick it against various parts of the engine with the blunt end in 
your ear. Pin down the area where the noise is coming from.

> This isn't a Death Rattle, is it? 

Probably not. My first guess is that the 2 screws that attach the fan 
housing to the engine case have come loose. They are now rattling 
against the fan. I don't know why that noise would go away under some 
conditions, however.

-- 
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Jim Adney, jadney at vwtype3.org
Madison, Wisconsin, USA
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