Re: [T3] Strange squeaky noise from engine...

["Jim Adney" <jadney@vwtype3.org>]

On 4 Nov 2008 at 10:03, Adriaan Loedolff wrote:

> My '69 SQB Auto has started making an intermittent squeaky noise when
> idling. It seems to come from the area around cyl #3. I would describe
> the noise as a fairly high pitch squeaky-squeaky-squeaky sound in time
> with the engine's beat when idling. It seems to disappear with increased
> rpm but I cannot say for sure as it may just be drowned out by the rest
> of the engine and it doesn't appear to be there when the engine is
> started from cold. All other engine parameters appear normal - no loss
> of performance, increased temperature or anything else and apart form
> being a little difficult to start when hot, the engine has been reliable
> since complete overhaul 12 000 miles ago.

Things to check:

1) Check compression to rule out loose/pulling head studs.

2) Check the tightness of the heat exchangers and the intake 
manifolds to the heads.

3) Use a long screwdriver like a stethoscope (blunt end in ear!) to 
narrow down the source of the noise. Listen all around the engine, 
including on the generator.

4) Check for any looseness of the fan housing to the engine. The 2 
screws that bolt it to the case often come loose if they are not 
secured really well.

-- 
*******************************
Jim Adney, jadney@vwtype3.org
Madison, Wisconsin, USA
*******************************

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