Noisy underneath conclusion i hope

markas · Mar 3rd, 2003, 18:27

Hi all,

Took my beastie to the dealer that replaced my clutch today. They were going to use microphones attached around the engine bay to isolate the noise.

Problem was found to be the spring bolts on the CAT. I presume these were not correctly tightened up when the sub-frame was put back in place.

On another note i had a Rover 75 1.8turbo. Not bad actually the suspension was soft as i remember them used to be and shifted quite quickly. I just could get used to the backerlite dash board. I am an ex-Rover employee :P pre-BMW.

mark.

Mar 3rd, 2003, 19:07

What do you mean by CAT? Catalyser? If so, I have a noisy cat as well. I was told that the inner part had come loose and was rattling. The cause was put down to wear and tear, but probably the use of cheap diesel. Remedied fuel cause, but the manual does say that a CAT's life has between 80,000KM and 150,000KM depending on driving style, (not 9 lives sadly):) so I guess it's about time to replace it. I've done 215,000KM and I don't think its ever been changed.

Oliver

markas · Mar 3rd, 2003, 23:05

Hi Oliver,

Well i have over 300km on catalyser/CAT mine and not a problem with the same age there abouts. I read just recently if looked after they can last mcuh longer.

Mark

AlastairL · Mar 4th, 2003, 10:03

Might I ask how you 'look after a CAT' Just hoping I never have to replace it
Alastair Lauener
850 estate

Mar 6th, 2003, 22:44

Hi Mark

I'm no expert, but may I ask you to explain what these 'spring bolts' are exactly? Can they be checked in situ? What're the symptoms etc.?

I'm having problems with a noisy 'engine'. Volvo told me that the CAT needed replacing as somehting has come loose inside. I don't usually jump to attention when mechanics say such things, as it's clearly in their interest for me to respond like a lame duck. So, I'd like to be sure that the problam isn't as simple as yours before forking out 800 Euro.

Many thanks

Oliver

Mar 3rd, 2003, 18:27	#1
markas VOC Member Last Online: Mar 7th, 2024 14:11 Join Date: Dec 2002 Location: Stafford	Noisy underneath conclusion i hope Hi all, Took my beastie to the dealer that replaced my clutch today. They were going to use microphones attached around the engine bay to isolate the noise. Problem was found to be the spring bolts on the CAT. I presume these were not correctly tightened up when the sub-frame was put back in place. On another note i had a Rover 75 1.8turbo. Not bad actually the suspension was soft as i remember them used to be and shifted quite quickly. I just could get used to the backerlite dash board. I am an ex-Rover employee :P pre-BMW. mark. __________________ Polishing Mark VOC 850 class winner 1998 to 2007 Rejoined 2022

Mar 3rd, 2003, 19:07	#2
odeane Guest Location:	RE: Noisy underneath conclusion i hope What do you mean by CAT? Catalyser? If so, I have a noisy cat as well. I was told that the inner part had come loose and was rattling. The cause was put down to wear and tear, but probably the use of cheap diesel. Remedied fuel cause, but the manual does say that a CAT's life has between 80,000KM and 150,000KM depending on driving style, (not 9 lives sadly):) so I guess it's about time to replace it. I've done 215,000KM and I don't think its ever been changed. Oliver

Mar 3rd, 2003, 23:05	#3
markas VOC Member Last Online: Mar 7th, 2024 14:11 Join Date: Dec 2002 Location: Stafford	RE: Noisy underneath conclusion i hope Hi Oliver, Well i have over 300km on catalyser/CAT mine and not a problem with the same age there abouts. I read just recently if looked after they can last mcuh longer. Mark __________________ Polishing Mark VOC 850 class winner 1998 to 2007 Rejoined 2022

Mar 4th, 2003, 10:03	#4
AlastairL Member Last Online: Sep 23rd, 2008 23:28 Join Date: Jan 1970 Location: Kinross	RE: Noisy underneath conclusion i hope Might I ask how you 'look after a CAT' Just hoping I never have to replace it Alastair Lauener 850 estate

Mar 6th, 2003, 22:44	#5
odeane Guest Location:	RE: Noisy underneath conclusion i hope Hi Mark I'm no expert, but may I ask you to explain what these 'spring bolts' are exactly? Can they be checked in situ? What're the symptoms etc.? I'm having problems with a noisy 'engine'. Volvo told me that the CAT needed replacing as somehting has come loose inside. I don't usually jump to attention when mechanics say such things, as it's clearly in their interest for me to respond like a lame duck. So, I'd like to be sure that the problam isn't as simple as yours before forking out 800 Euro. Many thanks Oliver

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