Rattle at rear - help please!!

[dgrewar]

Afternoon everyone

Yesterday a rattle began (rear right) - only occurs when I accelerate. Regular, tat-tat-tat noise.
I am no mechanic at all - is it a cv joint? driveshaft?
A learned friend thought it was a joint maybe needed greased...
If it is the right rear cv joint, should I replace just the right, or both?
Many thanks in advance

Donald Grewar
944 '89 2.7
St Andrews

p.s. is Bert Gear the best for replacements?

 

[Diver944]

A worn CV joint will indeed make a rhythmic tap tap tap with each revolution of the wheel. Removing the boot, cleaning it up and regreasing it can sometimes give a joint extra life, or indeed removing the whole shaft turning it though 180 degrees and fitting it the other way round. The idea being that the driven faces are now on the other side.

A complete new shaft with two new CV joints are currently available for £150 plus VAT from JMG as below:

 

[dgrewar]

Many thanks Paul !!

Donald

 

[Veerzigzag]

A few things can cause that kind of symptom - no doubt the experts will add their comments shortly. I had a similar-sounding noise and it turned out to be a handbrake shoe problem - the lining had completely disappeared off one of the shoes...
Suggest you wait for other comments on this thread and then have a systematic search for the cause.

 

[pse_SC]

Removing the boot, cleaning it up and regreasing it can sometimes give a joint extra life, or indeed removing the whole shaft turning it though 180 degrees and fitting it the other way round.

+1... those shiny new ones look very nice too, though []

 

[dgrewar]

ORIGINAL: Diver944

or indeed removing the whole shaft turning it though 180 degrees and fitting it the other way round. The idea being that the driven faces are now on the other side.

In fact, you'd have to swap the two axle shafts around - just turning them end to end on the same side of the car leaves the same faces driven. I know - it does my head in whenever I think about it, but it's true.

 

[Hairyarse]

I had same on my turbo a few weeks back, if it's the CV joint then it will be the one on the diff end most likely

 

[Mike_Pollock]

ORIGINAL: sr.944man

ORIGINAL: Diver944

or indeed removing the whole shaft turning it though 180 degrees and fitting it the other way round. The idea being that the driven faces are now on the other side.

In fact, you'd have to swap the two axle shafts around - just turning them end to end on the same side of the car leaves the same faces driven. I know - it does my head in whenever I think about it, but it's true.

Still trying to sort that out in my mind too, but I swapped one of mine round and changed the noise from throttle on to throttle off....

 

[simkin911]

Just a thought, check your battery is secure.

 

[Mike_Pollock]

When I got the 2.7 I wondered what the bumping in the back was -yes the battery was sitting on a piece of wood allowing it to slide round the whole of the side pod!