CDTI Grating Noise - water pump?

DaveF · 20th April 2017, 21:46

Hope someone can advise on the most likely cause of a constant grating noise, sounding a bit like a worn pad on a disc, coming from the engine bay. It started a couple of days ago and has got louder until the auxilliary belt has now gone and the charging light is on. So either water pump, steering pump or alternator I guess? It hasn't made any squealing / high pitched noise at all, which is usually the sign of bearings failing in my experience. I understand the w/p is a pain to remove, but steering pump is quite easy? Cheers, Dave

trikey · 20th April 2017, 21:48

Have you checked the bottom pulley?

T-Cut · 21st April 2017, 08:24

This is a typical noisy pulley

TC

Mike Noc · 21st April 2017, 12:24

If the serpentine belt has come off then it should be pretty easy to find the cause. Did the belt snap or just fall off?

Check all the pulleys for play and alignment - a collapsed water pump bearing will throw the belt off.

DaveF · 24th April 2017, 10:49

Thanks for the advice fellas, looks like it's the pulley falling apart as suggested. Reading other threads on that, I don't fancy it at all on my dodgy axle stands and gravel driveway! Front linkage bushes also going (again!) and clutch slipping a bit - 153k up now, may be time to say goodbye to the old girl....

timspencer · 24th April 2017, 10:59

As kylie once said, it's better the devil you know, 153k is nowt for a diesel, I would spend a few hundred quid getting it mended than on another unknown car.

These are after all wear and tear items that have lasted well if they are the originals.

Your choice but as it stands it's scrap fodder and to get anything as good and newer you'll be paying a good few thousand and even then it won't be as quiet, comfortable ...the alternative is a A6 or 5 series estate which don't come cheap and most have been to the moon and back and don't believe all you hear about German reliability, maybe the old Mercedes were but the new stuff isn't.

The rover 75/zt is the bargain of the century in my book and I'm a trader.

20th April 2017, 21:46	#1
DaveF Newbie MG ZT-T Join Date: Aug 2013 Location: Garstang Posts: 8 Thanks: 0 Thanked 0 Times in 0 Posts	CDTI Grating Noise - water pump? Hope someone can advise on the most likely cause of a constant grating noise, sounding a bit like a worn pad on a disc, coming from the engine bay. It started a couple of days ago and has got louder until the auxilliary belt has now gone and the charging light is on. So either water pump, steering pump or alternator I guess? It hasn't made any squealing / high pitched noise at all, which is usually the sign of bearings failing in my experience. I understand the w/p is a pain to remove, but steering pump is quite easy? Cheers, Dave

20th April 2017, 21:48	#2
trikey Premium Trader Rover 75 Join Date: Nov 2010 Location: Devon Posts: 33,764 Thanks: 8,837 Thanked 14,831 Times in 8,030 Posts	Have you checked the bottom pulley? __________________ Lest we forget..

24th April 2017, 10:49	#5
DaveF Newbie MG ZT-T Join Date: Aug 2013 Location: Garstang Posts: 8 Thanks: 0 Thanked 0 Times in 0 Posts	Pulley Thanks for the advice fellas, looks like it's the pulley falling apart as suggested. Reading other threads on that, I don't fancy it at all on my dodgy axle stands and gravel driveway! Front linkage bushes also going (again!) and clutch slipping a bit - 153k up now, may be time to say goodbye to the old girl....

24th April 2017, 10:59	#6
timspencer Gets stuck in MG ZTT Join Date: Oct 2016 Location: BURTON ON TRENT Posts: 854 Thanks: 125 Thanked 283 Times in 153 Posts	As kylie once said, it's better the devil you know, 153k is nowt for a diesel, I would spend a few hundred quid getting it mended than on another unknown car. These are after all wear and tear items that have lasted well if they are the originals. Your choice but as it stands it's scrap fodder and to get anything as good and newer you'll be paying a good few thousand and even then it won't be as quiet, comfortable ...the alternative is a A6 or 5 series estate which don't come cheap and most have been to the moon and back and don't believe all you hear about German reliability, maybe the old Mercedes were but the new stuff isn't. The rover 75/zt is the bargain of the century in my book and I'm a trader. Last edited by timspencer; 24th April 2017 at 11:03..

21st April 2017, 08:24	#3
T-Cut This is my second home Rover75 and Mreg Corsa. Join Date: Nov 2006 Location: Sumweer onat mote o'dust (Sagin) Posts: 21,752 Thanks: 341 Thanked 3,660 Times in 2,924 Posts	This is a typical noisy pulley TC

21st April 2017, 12:24	#4
Mike Noc This is my second home Rover 75 CDT Manual Connoisseur SE, Rover 75 CDT Automatic Connoisseur SE & a Freelander Td4. Join Date: Jul 2009 Location: Hampshire Posts: 11,547 Thanks: 3,470 Thanked 3,119 Times in 2,247 Posts	If the serpentine belt has come off then it should be pretty easy to find the cause. Did the belt snap or just fall off? Check all the pulleys for play and alignment - a collapsed water pump bearing will throw the belt off.