Noisy engine, not crankshaft pulley?

ninaandphil · 23rd May 2018, 21:09

Hi, any suggestions where to start..... my diesel has developed a noisy clatter, which seems to come from around the belts and pulley area, but I really can't seem to pinpoint it. I have changed the crankshaft pulley and belts, but the noise persists. Not sure how to go about isolating where the culprit is, or if there are any regular parts such as the idler pulley, A/C compressor etc that are known to wear and cause earache! The noise is actually more intrusive in the cabin then when standing outside next to the car.... Cheers for any clues, Phil.

klarzy · 23rd May 2018, 21:11

Quote:

Originally Posted by ninaandphil

Hi, any suggestions where to start..... my diesel has developed a noisy clatter, which seems to come from around the belts and pulley area, but I really can't seem to pinpoint it. I have changed the crankshaft pulley and belts, but the noise persists. Not sure how to go about isolating where the culprit is, or if there are any regular parts such as the idler pulley, A/C compressor etc that are known to wear and cause earache! The noise is actually more intrusive in the cabin then when standing outside next to the car.... Cheers for any clues, Phil.

choices are, water pump, power steering pump, crankshaft end float, timing chain wear, ac compressor (does it go quiet when AC is on?)

trikey · 23rd May 2018, 21:15

Remove the aux belts and see if the noise goes away.

klarzy · 23rd May 2018, 21:18

Quote:

Originally Posted by trikey

Remove the aux belts and see if the noise goes away.

or do it the easy way like he says...

trikey · 23rd May 2018, 21:19

Quote:

Originally Posted by klarzy

or do it the easy way like he says...

Still a pain to do Pete, if the noise goes away, then its detective mode!

Mike Noc · 23rd May 2018, 21:20

Quote:

Originally Posted by trikey

Remove the aux belts and see if the noise goes away.

And whilst they are off feel all the pulleys for play and roughness. Mine clattered when the water pump was on the way out.

ninaandphil · 23rd May 2018, 21:35

Thanks all, guess it's going to be another weekend under the car, hope it's not the water pump!

23rd May 2018, 21:09	#1
ninaandphil Avid contributor MG ZT CDTi Join Date: May 2013 Location: Exford Posts: 173 Thanks: 49 Thanked 25 Times in 20 Posts	Noisy engine, not crankshaft pulley? Hi, any suggestions where to start..... my diesel has developed a noisy clatter, which seems to come from around the belts and pulley area, but I really can't seem to pinpoint it. I have changed the crankshaft pulley and belts, but the noise persists. Not sure how to go about isolating where the culprit is, or if there are any regular parts such as the idler pulley, A/C compressor etc that are known to wear and cause earache! The noise is actually more intrusive in the cabin then when standing outside next to the car.... Cheers for any clues, Phil.

23rd May 2018, 21:15	#3
trikey Premium Trader Rover 75 Join Date: Nov 2010 Location: Devon Posts: 33,763 Thanks: 8,837 Thanked 14,831 Times in 8,030 Posts	Remove the aux belts and see if the noise goes away. __________________ Lest we forget..

23rd May 2018, 21:35	#7
ninaandphil Avid contributor MG ZT CDTi Join Date: May 2013 Location: Exford Posts: 173 Thanks: 49 Thanked 25 Times in 20 Posts	Thanks all, guess it's going to be another weekend under the car, hope it's not the water pump!