Porsche Enthusiasts Club Forum

Hope so. I just paid over £4 each for the 4 O-rings that go between a/c compressor and adapter plate. Although the ones for the pipe ends were under a quid each. Still a degree of randomness from OPC in pricing up O-rings!!

Stuart

if they print the size in PET then you can get them at any bearing shop for about 10p each.

if they don't you can get them measured at the bearing shop then pay 10p each for them.

I got a whole set of front end oil seals and all the O rings for the 968 for £21 from my local bearing shop

WELL, after a rest from it, I,m back into the bugger, have had no more issues with oil pressure ( hmm, think that will come back and bite me on the arse ! )its time to find out what the orrible noise is. Took the belts off t,other night, snapped the adjuster for the power steering . . . . . C*cK, took the belts off but the noise is still there. Seems to be coming from be-hind the timming cover, so it looks like I,m pulling the bugger to bits next week. . . . Its a strange noise, more a rattle, but high pitched, I was hopping it was a bearing in the alt. . . oh well, I,ll let you no how I get on. . . .

Has to be a roller or water pump, not much else in there Dave

I,m thinking along the same lines mate, but they were all replaced about 5,000 miles ago, and it doesn't sound like either, well its coming to bits, so no doubt we shall find out soon enough eh !

I have read somewhere that the OPRV can rattle and chatter if it's very worn not sure how true that is, but it would give the impression the noise was from the belt area?

Investigation time I guess

Well, pulled the timing belt casing of tonight, and. . . .guess who hasn't re-tensioned the belts after they were changed, looks like the B/S belt has been catching the smooth part of the water pump pulley. . . . DOH.
So everything is ok on the noise department, the O/Pressure fault hasn't happened anymore, but I think a flush and new oil filter and oil will be in order of the day.
I didn't change the belts when I got the car, a good friend of mine did it for me, and I,m sure I was advised that they didn't need re-checking. . but I could be wrong, old age is a terrible thing !
Cheers,
Dave

AGGGHHHHH,
Well started a new job today, and have a bit of traveling to do, so thought I had best change the belts again, only done 8k, but better safe that sorry.
Well, we changed the belts, all fine, but a small whine, but I think its the p/s pump. But driving to work today, the oil pressure seem to be a bit low once everything had warmed up, 2/2.5 bar at 60mph, about 2500 rpm, fine and dandy when cold, but I could see it slowly creep down from just over 3 when cold to the above , on the motorway, Am I being paranoid. . . . . . .

Crank pulley loose?

Whine is balance belt too tight or it's a conti tech belt, they seem to be noisier than gates

Hmm, crank pulley was put on with a snap on electric gun, I watched my mate do it, and I have give it another tweak tonight, just to be sure, and the noise has gone. . .and so has half the P/S belt. . . . . .BUGGER !.
Ill take it to work t,moro and keep an eye on the gauge, I shall let you no how I get on. . . .wish me luck,
Dave

snap on electric gun?...my son has one of those...did he not torque it up properly?...iirc it needs to be around 150lb...don't drive the car again until you check it's torqued up correctly as you could destroy the engine, this can and has happened to others.

Pete

So, lost p/s belt today, so thought I would check crank pulley bolt torque , it was F/tight, so removed it, and re-torqued to 150 ftlbs. . . . . .no difference, still about 2 bar at 2.5k rpm, starting to p*ss me off this car tbh. . . . .

Can you torque up the crank bolt properly without locking the flywheel???

I believe not, hence my post.

If its tight then the characteristics of the pressure rise become important. Is it a series one car? If so Id suspect the OPRV.

I removed the starter, and locked the flywheel with a pry-bar and a willing friend, Its a 1985.5 car, as I believe they are called, I just cant get my head around why the pressure was fine before the belts were changed. . . . .but then, the brakes were fine before I fixed a leaking front caliper, the paint was fine before I washed it. etc etc. . . .only done 8,000 miles in it and it just seems to fight me with everything I do. . . . Is the OPRV suspect on my car with it being a slightly later version. . .

Series two: 85.5 is a ridiculous Merkin term. The OPRV problem was solved with the series two, although it could still have failed.