Bloody thing!

 

Two days after parting with £400 to have the wheels diamond cut and lacquered it looks like the Z may have decided to kick me in the nuts...

 

The thing's suddenly developed a mystery noise from underneath, sounds like engine bay area - a kind of rubbing/knocking that only happens only when going forwards, in or out of gear. It's road speed dependent and it's not the wheels/bearings, etc. Nothing's caught between the pads and discs and all the wheel nuts are on tight. In short I've exhausted all the cheap items of wishful thinking. Dreading that it might be gearbox... :scared:

 

And it means losing a day or two's work getting it wherever it needs to go, etc...

 

Thank God that I don't live next door to a scrapyard! :cursing:

 

Any ideas, anyone??

I had something similar a while ago and found it was a heat shield between the exhaust and the prop shaft. It is a flimsy piece of metal than can easily be bent away from the prop with your hand which stops the rubbing noise.

Hope this helps.

Possibly prop centre bearing, but usually noticeable at around 40mph onwards unless the rubber has deformed and completely unbalanced it

Check the dust shields haven't been banged when taking the wheels off and are catching the disc...............worth a look.

my moneys on illegal immigrants..pesky blighters

my moneys on illegal immigrants..pesky blighters

 

Oh; so helpful; so funny... :asshole:

Check the dust shields haven't been banged when taking the wheels off and are catching the disc...............worth a look.

 

Thanks for that, but when the front was jacked up both wheels spun freely with no noise or bearing grumble/movement. It's more "mechanical" sounding and I reckon comes more from the centre of the car.

Most odd - driving to work: no problem at all. Driving home: problem!

Possibly prop centre bearing, but usually noticeable at around 40mph onwards unless the rubber has deformed and completely unbalanced it

 

Yeah thanks; that's my sorta feeling - but why only when the thing's going forward? And it'll make the noise at less than walking speed, just easing forward rolling down the drive... Most odd. God; I'm praying...

I had something similar a while ago and found it was a heat shield between the exhaust and the prop shaft. It is a flimsy piece of metal than can easily be bent away from the prop with your hand which stops the rubbing noise.

Hope this helps.

 

Well; I'll certainly take a look tomorrow. Thanks.

But if I'm honest it doesn't sound that "thin" - it's more like an extended rub which at any speed (10 mph plus) sounds more like a knock.

But thanks for your interest.

Yeah thanks; that's my sorta feeling - but why only when the thing's going forward? And it'll make the noise at less than walking speed, just easing forward rolling down the drive... Most odd. God; I'm praying...

 

If its totally shot like mine was, i had no rubber left and the bearing was hanging in mid air so would make noise at any speed, worth a check, would be the cheaper option if its the problem, if not then unfortunately you may be looking at a problem in the gearbox :thumbdown:

If its totally shot like mine was, i had no rubber left and the bearing was hanging in mid air so would make noise at any speed, worth a check, would be the cheaper option if its the problem, if not then unfortunately you may be looking at a problem in the gearbox :thumbdown:

 

Yeah; thanks. I'm having it picked up this morning so I imagine I'll soon find out! Drove it up and down the street again just now - sort of relieved to hear that it doesn't sound like a metallic clonk, more like a bad rubbing on one spot that once speed picks up sounds more "solid".

No idea - but yep; praying it's something like the propshaft bearing rather than the gearbox. Somehow it doesn't sound like the gearbox.

I'll report back once I get a diagnosis...

Cheers

Hi!

Thanks to everyone for the interest.

 

It turned out to be a problem with the wheel refurbishing I'd had done. The wheels are 2-piece, each with 52 bolts around the rim. On the front right, 14 of them were only finger tight! Trouble is the car was in a garage for a couple of days before they found the cause. Still; they only charged me £96 for all the time they'd spent - which the wheel refurb company have agreed to reimburse.

 

I've driven the Z around in a spirited fashion since and all seems OK so hopefully that's that panic over. Could have been a lot worse...

 

A week tomorrow I'm at Spa - can't wait! :clap:

 

Cheers

 

Dave

Shocking!

A week tomorrow I'm at Spa - can't wait! :clap:

 

With nice new Yellow Stuff Brake Pads helping you stop :laugh: