Hello all,
I described my problem a few months ago at the following thread:
http://www.mbclub.co.uk/forums/engi...cdi-alternator-belt-flapping.html#post1769025
It never got fully resolved and the car has had a new tensioner again yesterday after the piston on the previous one (3 months old) started leaking. But the belt is still vibrating around the alternator and there is still vibrating movement at the tensioner itself.
I've also changed the belt with 6PK2241 which I believe is 2241mm long, the one that came with the car was 2245mm. Having checked with online suppliers, 2241 is the right size.
Also the car is meant to have a solid pulley against clutch type(it already has a sold pulley installed), so don't know what else do now to resolve this problem.
When the steering is moved at idle rpm, it sometimes makes a squealing noise which is more pronounced when the steering is at extreme ends (makes the pump stop/ belt slip as well on its pulley).
My local mechanic has checked the pulleys for play and he said they seem OK! (I could sense very minor play on 2 pulleys but he said that's fine).
He has suggested 2 things:
1. Get an even shorter belt than 2241mm!
2. Get the car on STAR system and raise the rpm by 50-75. The idle rpm at the moment is showing at 775 as far as I remember. Once the rpm is raised slightly, the tensioner movement stabilizes considerably. Also the engine vibrations seem to get lot better when he raised engine rpm slightly via accelerator pedal.
Any other option like replacing pulleys would be expensive he says.
Can you please suggest what would be the best bet here? If a video is required, please let me know and I will upload.
The VIN is WDB2112062A324764.
Many thanks for your help in advance..
I described my problem a few months ago at the following thread:
http://www.mbclub.co.uk/forums/engi...cdi-alternator-belt-flapping.html#post1769025
It never got fully resolved and the car has had a new tensioner again yesterday after the piston on the previous one (3 months old) started leaking. But the belt is still vibrating around the alternator and there is still vibrating movement at the tensioner itself.
I've also changed the belt with 6PK2241 which I believe is 2241mm long, the one that came with the car was 2245mm. Having checked with online suppliers, 2241 is the right size.
Also the car is meant to have a solid pulley against clutch type(it already has a sold pulley installed), so don't know what else do now to resolve this problem.
When the steering is moved at idle rpm, it sometimes makes a squealing noise which is more pronounced when the steering is at extreme ends (makes the pump stop/ belt slip as well on its pulley).
My local mechanic has checked the pulleys for play and he said they seem OK! (I could sense very minor play on 2 pulleys but he said that's fine).
He has suggested 2 things:
1. Get an even shorter belt than 2241mm!
2. Get the car on STAR system and raise the rpm by 50-75. The idle rpm at the moment is showing at 775 as far as I remember. Once the rpm is raised slightly, the tensioner movement stabilizes considerably. Also the engine vibrations seem to get lot better when he raised engine rpm slightly via accelerator pedal.
Any other option like replacing pulleys would be expensive he says.
Can you please suggest what would be the best bet here? If a video is required, please let me know and I will upload.
The VIN is WDB2112062A324764.
Many thanks for your help in advance..