malbaby

My 1984 944 is leaking oil from the front crankshaft seal.
I plan to replace the belts seals etc.
Should I replace the oil pump drive gear sleeve as well???

Techno Duck

A grove will eventually wear into the drive sleeve from riding up against the oil seal, this is usually what causes the oil leak. In other words, just replace it!

PorscheDoc

Unless you want oil leaks to continue, every time you replace any of the front seals, you should replace the sleeves they ride on.

John_AZ

Replace if you show any wear.

Top is new bottom 2 both show wear.
Do not forget to install the green "O" ring in front of the drive gear.



John

StoogeMoe

How long would you experts expect the drive sleeve to last before starting to leak?

My limited experience seems to point to around 100k-150k miles.

malbaby

OK...Thanks guys

mytrplseven

WYIT (while you're in there) is always the mantra on these cars. If you've got access to other things while you're replacing a single thing, take advantage of the opportunity to change other things that may be worn while you're in there, i.e., belts, water pump, balance shaft seals, camshaft seals, etc. Getting the front crank pulley off to replace the seal and pump sleeve requires a long handle to break loose the nut (150 ft lbs). A long piece of pipe over the wrench handle should do it (or go to rent-a-gorilla)

Van

Yep, I just did belts, rollers, water pump, balance shaft seals, front main seal and oil pump drive gear on my car.

About $500 in parts, but I want to keep it in good health.

zerMATT951

These cars are ancient... gotta replace the oil pump drive gear / sleeve while you're in there.

Mach 5

Any suggestions for getting this gear off the end of the crank? I can get it to slide out to the end of the crank but it won't budge any further. I read where someone applied some heat to it, via heat gun, not torch. I was thinking maybe I could get a small gear puller as well.

thomasmryan

Push it back towards the motor and polish the crank with some 1000 grit. A puller would also work.

V2Rocket

since youre replacing it, just go to town with channel-lock pliers.

Mach 5

I used a gear puller and got it off.

Thanks.
Roger