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+--- Thread: Aux belt bouncing between the crank pulley and aircon compressor (/showthread.php?tid=11890)
Aux belt bouncing between the crank pulley and aircon compressor - titch - 14-03-2013
Just wondering if anyone has any ideas the car ( 2001 hdi ) started making a funny noise a few days ago it sounded similar to the noise it made whan the crank pully was knackered. I jacked the car up and removed the drivers wheel and arch liner, started the car and noticed the Aux belt bouncing between the crank pulley and aircon compressor, both tensioners are pretty new ( less than 6 months old ) the crank pully has done about 30K since i last replaced it, so could the crank pulley have gone again or maybe the belt stretched? i have got a new pulley to go on and am going to get a new belt at the weekend, just wondered if anyone had any other ideas or suggestions?
Cheers
RE: Aux belt bouncing between the crank pulley and aircon compressor - rd070707 - 14-03-2013
I would remove the belt and check all tensioners and pulleys by hand. Sounds like a shot tensioner to me though
RE: Aux belt bouncing between the crank pulley and aircon compressor - titch - 14-03-2013
Yeah will have a look at the weekend, but i replaced both tensioners about 6 months ago as one was squeeking so i just replaced both of them, but i didn't replace the belt.
RE: Aux belt bouncing between the crank pulley and aircon compressor - cully - 14-03-2013
spring loaded tensioner is probably bouncing off its stops due to slack belt, The second idler is actually a tensioner too, it has an eccentric mounting hole slacken it off and turn the mount to tension the belt again
RE: Aux belt bouncing between the crank pulley and aircon compressor - Piggy - 14-03-2013
check belt for wear...
if they are auto tensioners then thats the next bet.
but get it off and feel everything up!!
RE: Aux belt bouncing between the crank pulley and aircon compressor - Poodle - 14-03-2013
Did you use genuine parts? Ive had a non-genuine crank pulley go in less than 15k before, ebay jobby.
RE: Aux belt bouncing between the crank pulley and aircon compressor - titch - 14-03-2013
No the crank pulley was from a local motor factors ( it was a bank holiday monday when it went and they were the only place open)
The tensioners were from gsf, will have to have a good look at the weekend will bung the new crank pully and belt i already have and check the tensioners while i am there.
RE: Aux belt bouncing between the crank pulley and aircon compressor - Jonny81191 - 14-03-2013
(14-03-2013, 10:52 AM)Poodle Wrote: Did you use genuine parts? Ive had a non-genuine crank pulley go in less than 15k before, ebay jobby.
Just to echo this, I had a gates aux belt tensioner go in about 40 miles from new, it was fine when fitted. Finally threw the belt off about 6 weeks later, as I'd just ignored it.
RE: Aux belt bouncing between the crank pulley and aircon compressor - Ricky - 14-03-2013
When my crank pulley was gone, it was knocking quite badly, and the belt was shaking badly at it's longest point.
RE: Aux belt bouncing between the crank pulley and aircon compressor - Poodle - 15-03-2013
If you use the solid ones it's not a problem buying cheap, but for tensioners and the like it's a classic case of buy cheap, buy twice.
RE: Aux belt bouncing between the crank pulley and aircon compressor - titch - 17-03-2013
Cheers for the replies fellas, sorted it this morning, the crank pulley was ok running nice and straight and like mentioned above the noise was from the spring loaded tensioner bouncing, I don't think the manual tensioner was correctly adjusted as i slackened off the belt and checked all the pulleys and all was good, fitted the belt back on, tensioned it up properly with the manual tensioner and released the spring loaded one and it was nice and quiet.