What is that bit?

1977paul · Sep 11th, 2015, 21:08

Hi, first time post to the forum, just bought v40, 2004 1.8 petrol, got funny rattling sound from top right of engine as viewed from front, intermittent and was told it was vvt solenoid, when disconnected the noise goes away, connect it again and sound comes back, makes sound for few seconds, stops then comes back again. Engine light only came on when disconnected unit. Doesn't seem to affect the engine response but having only just got the car can't really judge, still pretty nippy. Anyway, having been to Volvo, without the car.... now know it's not the vvt solenoid, it's something in a round housing other end of cam shaft housing, anyone know what this might be and how easy/difficult is to replace? Thanks.

magnuz · Sep 11th, 2015, 21:31

It's not normally the solenoid that causes the rattle. It is usually the vvt pulley/sprocket that's the problem.
Disconnecting the solenoid stops the pressurised oil shifting the mechanism in the vvt pulley/sprocket & effectively disables it !

Replacing the sprocket requires a locking tool to lock the camshaft as the sprocket is not keyed to the shaft.
My sprocket was about £140, but that was a few years ago now. I did mine myself & i'm Not sure what the book time for labour is ? but expect it to be 3+ hours if doing the belt as well ?

neanderthal · Sep 11th, 2015, 21:44

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Sep 11th, 2015, 21:08	#1
1977paul New Member Last Online: Feb 3rd, 2016 10:44 Join Date: Sep 2015 Location: Basingstoke	What is that bit? Hi, first time post to the forum, just bought v40, 2004 1.8 petrol, got funny rattling sound from top right of engine as viewed from front, intermittent and was told it was vvt solenoid, when disconnected the noise goes away, connect it again and sound comes back, makes sound for few seconds, stops then comes back again. Engine light only came on when disconnected unit. Doesn't seem to affect the engine response but having only just got the car can't really judge, still pretty nippy. Anyway, having been to Volvo, without the car.... now know it's not the vvt solenoid, it's something in a round housing other end of cam shaft housing, anyone know what this might be and how easy/difficult is to replace? Thanks.

Sep 11th, 2015, 21:31	#2
magnuz Ancient Last Online: Apr 23rd, 2024 20:31 Join Date: May 2012 Location: chesterfield	It's not normally the solenoid that causes the rattle. It is usually the vvt pulley/sprocket that's the problem. Disconnecting the solenoid stops the pressurised oil shifting the mechanism in the vvt pulley/sprocket & effectively disables it ! Replacing the sprocket requires a locking tool to lock the camshaft as the sprocket is not keyed to the shaft. My sprocket was about £140, but that was a few years ago now. I did mine myself & i'm Not sure what the book time for labour is ? but expect it to be 3+ hours if doing the belt as well ? Last edited by magnuz; Sep 11th, 2015 at 21:43.

Sep 11th, 2015, 21:44	#3
neanderthal Master Member Last Online: Feb 10th, 2022 10:02 Join Date: Jun 2011 Location: THE MINSTER MAN View Photos By: neanderthal	....................... __________________ volvo v50 2.0 se lux D estate 2007 s/h volvo v40d estate 2003 Last edited by neanderthal; Sep 11th, 2015 at 21:46.

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