Loud bang ends in Slack Serpentine Belt (Drive Belt, Accessory Belt, etc...)???

I've had a squeak on my Drive belt for a few weeks and meant to look into it.

While I was on my way up the A1 2 days ago, there was a loud bang and something went under the car which was followed by the almighty sqeak of a completely slack belt and no steering because the PSP was not going round.

When I first popped the bonnet I thought that the tensioner must have droped off or something, but it's still there. All the pulleys are still in place and I've had the belt off to measure it and it hasn't stretched.

But, it's slack as hell. I thought maybe the alternator or one of the pumps had moved on a slotted mounting bolt, but have since discovered they haven't or don't appear to have with out removing all of the gubbins in front of them.

I'm stumped, how can the belt still be slack and the tensioner at the end of it's travel.

Any ideas guys ???

Likely to be the crank pulley

The crank pulley's moved ??

What do you suspect dropped off ?

The crank pulley.

crank pulley is still on mate, all the pulley's are still there, I've had the belt off and back on again.

Unless it's bearings but don't think there was any play on it?

Take a photo of the crank pulley.

Do a search, the outer part detaches.

Oh crap I have a squeak too, will need to work out what to check... good luck with your issues mate.

Ah, OK, cheers for that Rob

Will google for a picture, has anybody got a picture of a new one they can post.

When you say the crank pulley is still there, are you sure that the outer ring hasn't fallen off and you are looking at the rubber damping material that normally secures the outer part?

Cheers Tricky-Ricky,

Maybe, Rob's just suggested that. I could do with a photo or picture of a complete pulley if anybody can post one

That'll be the crank pully mate (outer ring)

Oh Crap, is that what it should look like ???

Anybody have a Crank Pulley for sale?

Most of the traders on here will sell you one Approx £140-180 IIRC

B4stard of a job to change though

Click the blue words crank pulley, takes you to a thread in FAQ

Cheers guys

Most of the traders on here will sell you one Approx £140-180 IIRC

 

B4stard of a job to change though

£178 delivered from Whifbitz, should be on its way to me as we speak.

Got quoted £250 from Mr T.

Pic for you qwarrior: http://garagewhifbitz.co.uk/components/com_virtuemart/shop_image/product/Toyota_4963badeeee24.jpg

Yeh sounds like a good price

Think mine was around £140 from Nic, but I didn't mind the 6 week wait

You were lucky chap. Where did the outer bit go?? Alot that let go like that go whizzing up into the ancilliary gubbins and smash them all to bits. Some have even been known to go through the cam belt cover and rip the cambelt to bits. FWIW I would now replace the crank pulley as a service item at 10-12 years having seen mine go and a number of others in that time frame.

Cheers for all you input guys, the outer ring went down not up, found the scratches on the sump and exhaust where it went under the car. It's in the middle of the A1 now if anybody wants to recover it.

Got another from Envy Performance, £230.

cheers again.

For those people who have a squeek grab the crank pulley and see if theres any play in it one sign of it when its on its way out and time to replace

Try the Tippex test if in doubt

http://www.mkivsupra.net/vbb/showthread.php?t=174726