240 General: - cluncking when setting off

prisspringle · Sep 29th, 2007, 08:23

hi guys

since i got minstral off andi its always had a clunck when you set off i'm not sure if its from a dead bushing or from something in the drivetrain. i know that one part of the rear end has been polybushed but i wouldn't think it was that unless the bolt and nut have come loose. So if anyone has any ideas or if this is a common problem could you let me know.

thanks chris

Clifford Pope · Sep 29th, 2007, 17:36

It could be a worn universal joint on the prop shaft, or a very worn splined sliding joint, or loose bolts on the gearbox or axle flange, or a very worn axle with gross backlash, or of course a suspension or reaction arm bush.

Don't confuse it with the noise the handbrake shoes often make when pulling away. They are meant to be slightly loose on their pivots, so sometimes make a clonk as they resume their neutral position after being released.

prisspringle · Sep 29th, 2007, 20:36

it clunks when the handbrakes not used so thats one off the list it wouldn't suprice me if it was a worn center bearing looks like i'll have to jack the car up

chris

CTCNetwork · Sep 29th, 2007, 20:43

Hi,

Likely to be the rubber mount for the drive shaft as they wear out pretty quickly..

Des. . .

Clifford Pope · Sep 30th, 2007, 06:48

Do they? I've never had one wear out in 380,000 miles. I don't think it can be the cause of a clunk on take-off. It would have to be so grossly worn for the shaft to touch any metal it would be thrashing around like mad and very dangerous.
Anyway a careful check from end to end should pretty quickly pinpoint the source.

CTCNetwork · Oct 6th, 2007, 00:10

Hi,

I had one fail on a 240 and on a 740..

Maybe I was unlucky....

Des. . .

Sep 29th, 2007, 08:23	#1
prisspringle Junior Member Last Online: Oct 2nd, 2017 21:30 Join Date: May 2006 Location: keighley	cluncking when setting off hi guys since i got minstral off andi its always had a clunck when you set off i'm not sure if its from a dead bushing or from something in the drivetrain. i know that one part of the rear end has been polybushed but i wouldn't think it was that unless the bolt and nut have come loose. So if anyone has any ideas or if this is a common problem could you let me know. thanks chris

Sep 29th, 2007, 20:43	#4
CTCNetwork Forum Support Team Join Date: Dec 2004 Location: Liège, Belgium View Photos By: CTCNetwork	Hi, Likely to be the rubber mount for the drive shaft as they wear out pretty quickly.. Des. . . __________________ Density:- Not just a measurement ~ It's a whole way of Life.! ! ! I drive a Volvo, Please Don't Get In My Way! OldVolvos4Ever He shows up. People die. He vanishes. People should not be afraid of their governments. "He'll deliver more justice in a weekend than 10 years of your Governments should be afraid of their people... "V" courts & tribunals. Just stay out of his way." "I plan to."

Oct 6th, 2007, 00:10	#6
CTCNetwork Forum Support Team Join Date: Dec 2004 Location: Liège, Belgium View Photos By: CTCNetwork	Hi, I had one fail on a 240 and on a 740.. Maybe I was unlucky.... Des. . . __________________ Density:- Not just a measurement ~ It's a whole way of Life.! ! ! I drive a Volvo, Please Don't Get In My Way! OldVolvos4Ever He shows up. People die. He vanishes. People should not be afraid of their governments. "He'll deliver more justice in a weekend than 10 years of your Governments should be afraid of their people... "V" courts & tribunals. Just stay out of his way." "I plan to."

Sep 29th, 2007, 17:36	#2
Clifford Pope Not an expert but ... Last Online: Today 09:38 Join Date: Dec 2001 Location: Boncath	It could be a worn universal joint on the prop shaft, or a very worn splined sliding joint, or loose bolts on the gearbox or axle flange, or a very worn axle with gross backlash, or of course a suspension or reaction arm bush. Don't confuse it with the noise the handbrake shoes often make when pulling away. They are meant to be slightly loose on their pivots, so sometimes make a clonk as they resume their neutral position after being released.

Sep 29th, 2007, 20:36	#3
prisspringle Junior Member Last Online: Oct 2nd, 2017 21:30 Join Date: May 2006 Location: keighley	it clunks when the handbrakes not used so thats one off the list it wouldn't suprice me if it was a worn center bearing looks like i'll have to jack the car up chris

Sep 30th, 2007, 06:48	#5
Clifford Pope Not an expert but ... Last Online: Today 09:38 Join Date: Dec 2001 Location: Boncath	Do they? I've never had one wear out in 380,000 miles. I don't think it can be the cause of a clunk on take-off. It would have to be so grossly worn for the shaft to touch any metal it would be thrashing around like mad and very dangerous. Anyway a careful check from end to end should pretty quickly pinpoint the source.

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