MINI2

AndyH_MCS · Jul 31st, 2006, 04:36 PM

Hi guys

Is the GTT idler pulley the same size as the stock BMW one?

Would it be smaller due to the smaller belt?

I have a rattle on the pulley side of the engine. Only on idle and sounds like metal "buzzing" together.

BMW seem to think its the idler pulley.

Cheers

Andy

T-bone S · Jul 31st, 2006, 04:48 PM

What do you have fitted - GTT or BMW?

AndyH_MCS · Jul 31st, 2006, 04:52 PM

I have the GTT fitted at the moment. BMW say its causing the noise.

Personally i say its the GTT stop bar thing OR the Crank pulley depending on what noise they say.....yes i have 2 noises

T-bone S · Jul 31st, 2006, 05:01 PM

Sounds plausable - maybe the stopper needs tightening?

T-bone S · Jul 31st, 2006, 05:05 PM

Have you spoken to GTT? - obvious I know

Baker · Aug 1st, 2006, 10:41 AM

The GTT "stop bar" has caused rattles in a car I have seen, so it may be that.

roland2003 · Aug 1st, 2006, 10:50 AM

Hi Guys, the noise is possibly the tensioner bar buzzing slightly at idle (its definatly not the GTT Idler Pulley). The fix is a small bead of clear silicon sealant around the lower fixing/pivot. This 'damps out' the buzz without restricting the pivoting action. You can (or we can ) apply it using a small long screwdriver (or similar) to get to it. Ensure engine is off though! We now always apply silicon automatically when fitting. The GTT Twin Bearing Idler Pulleys are available in stock diameter or oversize, the larger one gives marginally more wrap on the drive side of the SC pulley; useful with small SC pulleys to give more grip.
Best Regards Roland GTT

AndyH_MCS · Aug 1st, 2006, 06:17 PM

Cheers guys

The mini was in for warranty work on the passenger side wheel and the technician noticed it was making the buzzing.

After explaining that i had the smaller pulley, belt and other bits he decided that its not worth doing.

I too believe the buzzing to be the stop bar so i'll have a closer look with the silicone!

Cheers for your help

Jul 31st, 2006, 04:36 PM	#1
AndyH_MCS MINI2 Regular My Classifieds Join Date: Jan 2006 Location: Essex Local Time: 09:46 PM Posts: 225 Offline	GTT Idler pulley size Hi guys Is the GTT idler pulley the same size as the stock BMW one? Would it be smaller due to the smaller belt? I have a rattle on the pulley side of the engine. Only on idle and sounds like metal "buzzing" together. BMW seem to think its the idler pulley. Cheers Andy

Jul 31st, 2006, 04:48 PM	#2 (permalink)
T-bone S MINI2 Senior Join Date: May 2006 Location: Berkshire Local Time: 09:46 PM Posts: 524 Offline	What do you have fitted - GTT or BMW? MY05 MINI COOPER S - DS/B - GTT OPTIMISED- THANKS FOR THE RIDE - ENTER THE R56 JCW

Jul 31st, 2006, 05:01 PM	#4 (permalink)
T-bone S MINI2 Senior Join Date: May 2006 Location: Berkshire Local Time: 09:46 PM Posts: 524 Offline	Sounds plausable - maybe the stopper needs tightening? MY05 MINI COOPER S - DS/B - GTT OPTIMISED- THANKS FOR THE RIDE - ENTER THE R56 JCW

Jul 31st, 2006, 05:05 PM	#5 (permalink)
T-bone S MINI2 Senior Join Date: May 2006 Location: Berkshire Local Time: 09:46 PM Posts: 524 Offline	Have you spoken to GTT? - obvious I know MY05 MINI COOPER S - DS/B - GTT OPTIMISED- THANKS FOR THE RIDE - ENTER THE R56 JCW

Aug 1st, 2006, 10:50 AM	#7 (permalink)
roland2003 MINI 2 Sponsor GT Tuning Join Date: Jan 2004 Local Time: 09:46 PM Posts: 2,731 Offline	Hi Guys, the noise is possibly the tensioner bar buzzing slightly at idle (its definatly not the GTT Idler Pulley). The fix is a small bead of clear silicon sealant around the lower fixing/pivot. This 'damps out' the buzz without restricting the pivoting action. You can (or we can ) apply it using a small long screwdriver (or similar) to get to it. Ensure engine is off though! We now always apply silicon automatically when fitting. The GTT Twin Bearing Idler Pulleys are available in stock diameter or oversize, the larger one gives marginally more wrap on the drive side of the SC pulley; useful with small SC pulleys to give more grip. Best Regards Roland GTT www.gttuning.com

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Jul 31st, 2006, 04:52 PM	#3 (permalink)
AndyH_MCS MINI2 Regular My Classifieds Join Date: Jan 2006 Location: Essex Local Time: 09:46 PM Posts: 225 Offline	I have the GTT fitted at the moment. BMW say its causing the noise. Personally i say its the GTT stop bar thing OR the Crank pulley depending on what noise they say.....yes i have 2 noises

Aug 1st, 2006, 10:41 AM	#6 (permalink)
Baker Being normal is not fun! Join Date: Jul 2004 Location: Newcastle, Australia Local Time: 07:46 AM Posts: 4,115 Offline	The GTT "stop bar" has caused rattles in a car I have seen, so it may be that.

Aug 1st, 2006, 06:17 PM	#8 (permalink)
AndyH_MCS MINI2 Regular My Classifieds Join Date: Jan 2006 Location: Essex Local Time: 09:46 PM Posts: 225 Offline	Cheers guys The mini was in for warranty work on the passenger side wheel and the technician noticed it was making the buzzing. After explaining that i had the smaller pulley, belt and other bits he decided that its not worth doing. I too believe the buzzing to be the stop bar so i'll have a closer look with the silicone! Cheers for your help

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