CO944

Thanks for the suggestion Patrick! I will keep them in mind.

Mighty Shilling

Yes, Dart Auto is good, or if you want, you can pick up my spare engine that needs a piston (maybe) and a crankshaft (definately). I've got everything for it except the crank and flywheel, and clutch, etc...etc...etc.. I'll sell it to ya for cheap, or if ya want, I'll build it for ya for kicks and charge ya parts and a couple hundred...

I've already built one of these engines, and they're not that difficult to repair or build, so if you need some advice, I'll be glad to help. I also have the factory manuals if you would like to borrow them for whatever reason. PM me, and I'll give you my phone number so if ya get stuck on anything call me up and I'll either tech support over the phone, or come help if need be. I live at 50th and Federal, so I'm not too far from ya.

but if there is no oil pressure, DEFINATELY check the main pully...151 ft-lbs on the crankshaft bolt IIRC. And, we should shoot for a Porsche New Years party, or maybe even a Porsche/MINI new years party (I've got a buddy with a MINI and he'd prolly want in). That does it, I'm starting a new thread on that...

CO944

Definately Geoff!
I will check the crank pully tomorrow.
Is there any risk if it is slipping?
Or if it is not tightened to spec?
other than the pressure bottoming out.

What is the socket size of the crank pully bolt?
I only have the big set of tools at work.. and towing
the 944 into work is not a current option.

Those manuals are excellent.. perused the 911 version
not too long ago. I will be in touch about those.

Mighty Shilling

The crank pulley bolt is a 24 mm... if it's not tightend to spec, then the oil pump isn't turning with the crankshaft, therefore you will have NO oil pressure. Like said before, it's 151 ft-lbs

Eyal 951

nobody else thinks this is a spun rod bearing? CO944, there is a very known issue with the #2 rod bearing in these cars, and I think you may have a motor that has, like many others, fallen vitim to the great #2!
~Eyal

inactiveuser92616

I havent taken it apart to check, but I think the bottom end on my 944S is in good shape (I dont have reason to believe otherwise). The engine itself is dead though, cracked cylinder + banged valves.

HY M8NC

Checked the oil pressure relief valve? Does the car run? Eyal-I've heard a lot about the #2 rod bearing, but would that cause no oil pressure? I've also heard of the seal on the oil pump failing, causing leakdown-and cracked pick-up tubes causing the pump to suck air...

Mighty Shilling

Eyal, you could be onto something. CO, How loud is the click? is it coming from the top or the bottom of the engine? IF the crank pulley bolt is torqued to spec, I'd put money on it being the #2 rod bearing which is why I rebuilt my engine. it's not a fun repair, or fun to know that it's happened to your car.

CO944

Please.. you can call me Brad. CO is a honor but I dont believe they named the state after me.

Noise is definately from the upper end. Sounds like a sewing machine. Tick tick tick tick..
I have heard rod bearings go and this is pretty far from that. no knocking.

HY- I am going to pull the oprv tomorrow and take a good look at the seals.
There is a chance that it was put in without new seals. If so then that could
easily be the problem.

Mighty Shilling

yep. didja check the crank pulley?

Eyal 951

The injectors in these cars are kinda loud. Maybe you just have a small problem. replace the OPRV, and the oil pressure sending unit.
~Eyal

CO944

I am hoping to find a small problem tomorrow.

HY M8NC

The '83 has the 2 piece OPRV. When you take the bolt off, a spring will slide out-and then the piston. On my car, the piston was wedged in so tight, I had to remove the Oil cooler, and hammer it out. No crap. My symptoms were no oil pressure for a good 10-15 seconds after start up. The stuck OPRV was allowing all of the oil to drain back to the case-and it would take a while to build the pressure.

Consider updating the car to the one piece OPRV if this is the case. Another thought is to make sure it has a Porsche oil filter. Aftermarket brands do not do a good job with the anti-drainback valve in the filter. Since ours are inverted, the Porsche filter will not allow the oil to leak out of the filter. This would also cause a fair amount of time with no pressure as the filter refills.

Z-man

If you stil think it's a spun #2 rod bearing, then remove the oil filter and crack it open. If you see metal fragments in there, then you most likely spun the #2.
-Z.

Mighty Shilling

Yeah, after an oil change I get lifter clicking for like 2 seconds before the filter fills up...