Breaking belts !!!!
Former Vendor of MBWorld
Joined: Oct 2008
Posts: 1,181
Likes: 4
From: Long Island, NY
Whatever we're tuning!
Check the belt size. I use the Dayco Poly Rib Gold Label p/n 5080515 with our 180mm pulley package.
Take a look at the tensioner too.
Does it start to shred when you are stomping it?
More info!
Take a look at the tensioner too.
Does it start to shred when you are stomping it?
More info!
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Former Vendor of MBWorld
Joined: Oct 2008
Posts: 1,181
Likes: 4
From: Long Island, NY
Whatever we're tuning!
I cross referenced a Gates belt for the 180mm pulley application and came up with Fleetrunner Micro V p/n K080514HD or the regular AT Micro V p/n K080514.
That is a belt alternative but why is it shredding in the first place?
Something else caused the belt failure!
That is a belt alternative but why is it shredding in the first place?
Something else caused the belt failure!
Former Vendor of MBWorld
Joined: Oct 2008
Posts: 1,181
Likes: 4
From: Long Island, NY
Whatever we're tuning!
MBWorld Fanatic!
Joined: Jul 2008
Posts: 2,172
Likes: 3
From: Philly
997TT, C192 GT63, W464 G550, MS Plaid
I cross referenced a Gates belt for the 180mm pulley application and came up with Fleetrunner Micro V p/n K080514HD or the regular AT Micro V p/n K080514.
That is a belt alternative but why is it shredding in the first place?
Something else caused the belt failure!
That is a belt alternative but why is it shredding in the first place?
Something else caused the belt failure!
Former Vendor of MBWorld
Joined: Oct 2008
Posts: 1,181
Likes: 4
From: Long Island, NY
Whatever we're tuning!
MBWorld Fanatic!
Joined: Jul 2005
Posts: 3,167
Likes: 19
From: London, UK
No longer stock '06 E55, A3 3.2 Quattro, GLE 400d, R107 280SL, Golf Polo
3 belts in one day is a pulley / alignment / tensioner problem. It is not the belts.
When u say wobble is it 1-2 mm out of true or more? If more don't drive your car until u have the pulley and the other bits looked at thoroughly.
When u say wobble is it 1-2 mm out of true or more? If more don't drive your car until u have the pulley and the other bits looked at thoroughly.
MBWorld Fanatic!
Joined: Jun 2009
Posts: 1,693
Likes: 9
From: Houston, TX
2006 E55, 2012 Jeep SRT, 2008 G37s 6MT (The Mrs.), 2005 Explorer
Is it shredding the ribs from the inside out or is it shredding from side to side? Side to side-> most likely alignment, Inside out-> tension maybe too loose or too tight or maybe there is an issue with your supercharger getting hot and getting harder to rotate?
Just some thoughts. Have you talked to LET or the vendor you got it from?
Just some thoughts. Have you talked to LET or the vendor you got it from?
Senior Member
Joined: Apr 2009
Posts: 453
Likes: 0
CLS55 AMG 030
Hmmmm ... Belt braking is an issue I've had the pleasure of learning a lot about, with bikes.
3 belts in one day? I find it hard to believe the alignment could be THAT off to be shredding belts off and I'd expect to see some thrown belts first.
On a bike when the alignment is way off you get a tearing break because the tension is greater on one side. But in a serpentine system like these, I can't see that happening.
Just to throw another possibility out there ...
You aren't by any chance seeing burn marks inside belts or around the breaks are you? Smelling a lot of burnt rubber? How's everything running prior to breaks?
With the belt off ... have you checked to make sure everything spins freely that should?
Almost sounds like something is seized to me.
Just thinking out loud...
3 belts in one day? I find it hard to believe the alignment could be THAT off to be shredding belts off and I'd expect to see some thrown belts first.
On a bike when the alignment is way off you get a tearing break because the tension is greater on one side. But in a serpentine system like these, I can't see that happening.
Just to throw another possibility out there ...
You aren't by any chance seeing burn marks inside belts or around the breaks are you? Smelling a lot of burnt rubber? How's everything running prior to breaks?
With the belt off ... have you checked to make sure everything spins freely that should?
Almost sounds like something is seized to me.
Just thinking out loud...
