V6 Engine Rattles

[Guest ccs]

hi - dont know if anyone can confirm my suspisions regarding the terrible ratles coming from my v6.

 

I think its the timing chains, tensioners etc it sounds like the chains are about to blast thier way thro' the block.

 

Funny though when the engine is cold it sounds like it used to real nice, when the oil warms up the thing sounds like its heading for the scrapyard in the sky.

 

Is this a job that I can tackle myself, can anyone tell me if the chains etc can be replaced in situ ?

 

So far its done 123,000 miles

[Guest vr6galaxy]

Timing chains rattles :blink: the dreaded death rattle of a VR6 :blink: get the noise investigated as soon as possible! the chains and the follower/tensioners can be chained in situ, BUT! the gearbox has to come out as the chains are that end, so while your there replace the clutch as well

the replacement of the chains and ancillaries are covered in detail on theVR6 owners club web site as well as a complete part listing

[Guest ccs]

Thanks for that, its an auto as well so just makes things that bit more interesting.

[tim-spam]

Just a quick thought - I'm not familiar with the exact layout of the VR6 engine, but would it be possible to change the tensioners without removing the gearbox? The reason for this question is that the recommended method for changing the chain on a Mercedes 190 should enable the chain to be changed without removing the gearbox. The method is to grind the heads of the link pins off one chain link (with plently of rags around to prevent swarf from entering the engine!), remove the link and then use the new loose link (supplied with the new chain) to temporarily join the new chain to the old one. The engine is then very carefully and slowly turned so that the new chain is drawn into position by the old chain. Once this is done, the old chain is removed, the loose link used to join the two ends of the new chain together and the heads of the pins peened over to hold the loose link in place - job done. However, I don't know if this would be possible on the VR6 engine, so apologies if it isn't.

Tim

[Guest vr6galaxy]

There are two chains on the VR6, an upper and a lower, the main cause of the rattle/noise is the slack in the chains that occurs when the tensioners wear/fail!

[seatkid]

Another good reason not to buy a VR6.... :blink:

[Guest vr6galaxy]

Another good reason not to buy a VR6.... :unsure:

And remind me again the good reason for buying a TDI? :angry: AHH yes I remember now the constant MAF sensor replacement and the lack of heater output :P

[seatkid]

You may have a point there, guess I'll just wait until the hybrid is launched.......................................I.m..w.a.i.t.i.n.g.... :unsure: