I've got the common ticking sound thing going on, ticks on cold start for a few minutes then smooths out but then ticks intermittently from the valve area. Does this sound like bad O-rings from poor oil circulation? If yes then how many do I need to order? Is it a easy job to pull the pan, pump, etc? I've got a 94 855 T w/144k

Any help advice much appreciated!

Travis

 

hmmm..my moms 95 240 does the same thing, as does my dads 94 525i bmw...does it use oil? has there been any interior engine work done beforE?

 

I just got the car last Tues and drove a few hundred freeway miles to drive it home. It hasn't used any significant amount of oil at all. I might investigate the oil pump seals but would like to know if I have to remove the oil pump to do so. This morning i noticed that after some time it's not as bad, say after driving it for 20 or so minutes I let it idle to see if the noise would come back and it didn't immediatly at least. Maybe I should listen to it linger at idle speed. I'm pretty sure the car hasn't had any deep engine work so far.

T

 

It does kind of sound like the o-rings to me.If you buy the parts from the dealer they give you a kit to replace all of them.It isn't that expensive for the kit.I think it is less than $20.00.

It isn't that hard to do.Doing at home and with hand tools taking your time might take you half a saturday.

Patrick: On your moms car the Valves might need to be adjusted.

 

So I don't have to remove the oil pump just the return line and replace the o-rings there?

 

The oil pump it attached to the front of the crank.Once you drop the oil pan then remove the oil pick up tube and replace that o-ring as well as the ones on the oil pan.Then becareful putting the pan back on so one doesn't drop.Don't forget you need a special sealer for the oil pan.I also use a little to hold the o-rins into place.Some people use grease.

 

thanks much Tech. Do you happen to knkow how many o-rings there are and do I have to got the sealant from Volvo?

Thanks again, your knowledge is invaluable!

Travis

 

There is either 3 or five of them.I think on your car just 3.Some have a cross over tube in the oil pan.But I think the 850 just has the 3.I would try to buy the sealer from the dealer.It is a thin sealer that seals then there is no air on the sealer.It is not like a gasket maker or something like that.

Im sorry you should also replace the turbo return line o-ring and the dipstick tube o-ring.