oil pump seal help

[big al]

hi

944 oil leak
i need to replace my oil pump seal at the crankshaft do i need to remove the oil pump or can i replace the seal from the front without removing the oil pump, i know clarks garage shows the pump removed but as far as i can see there is no reason to remove it or am i missing something

Alan

 

[Fen]

I don't know if the seal can be replaced without removing the pump for sure, but I think it can. Ideally you don't want to disturb the pump because it seals across a face with a join in it and you might get a leak after it's removed.

 

[big al]

hi

thats what i am afraid of, if the pump has to come off then you have to slacken the front sump bolts (guaranteed to leak if you do that)

 

[Fen]

Thinking about it, it's the main front crank oil seal and I'm 90% sure I had that replaced on my S2 cab (twice in fact). The oil pump was never off that car. It isn't just the sump, there is a "girdle" that holds the bottom shell bearings and that forms the bottom part of the front face that the pump seals against, with the block forming the upper part.

 

[big al]

hi

did you need to take the radiator out to get a gear puller on, or if i remove the fan will that do

 

[Indi9xx]

You do not need to remove the oil pump.

You also should replace the oil pump drive sleeve and the oil pump drive sleeve o-ring.

I would also change the balance shaft oil seals, mylar washers, camshaft oil seal, chamshaft rear guard sealing ring.

I would also suspect the lower balance shaft as often looking like the crank seal has failed, as the oil runs along a path that makes it drip out of the crank area.

Removing the radiator depends on how big your gear puller is.. sometimes you can get it off without pullers. I tend to find that one in 10 requires the use of a puller, the rest come off with either pulling by hand or with lots of penetrating oil and much wiggling. A puller should be the last resort.