Oil pump seal

[Threshld1]

Two questions. Ive recently become aware of how much the front of my block is leaking oil. I was checking my timng and it appears to be coming from around the oil pump not the center oil seal. Im planning on replacing both but my questions are:

1. Can the oil pump be removed without removing the water pump. From what i could see it looks like i should be able to get it off without but i want to be sure.

2. Should i get a gasket for the oil pump or should i just use some liquid gasket? Suggestions of type if liquid?

Also anyone have any suggestions for checking the condition of my oil pump? Pointers are appreciated, thanks

[thehookeup]

yes the oil pump can be removed by its self.

you will have to get a front main seal, and then the tiny little O ring that goes between the pump and the block, its pressure seal
and i suggest Permatex RTV sealant. or Permatex "the right stuff"

as far as checking the condition of your oil pump, if you have feeler gauges you can check it with, if you you have a manual also. There are threads about this. pumps dont go bad that often.

how many miles are on it?

[Threshld1]

165k Im just wondering cause i had an issue with an 90 supra 7M-GTE and extra low oil pressure due to a bad pump. I just dont want all my efforts in bringing this motor back to good condition to be wasted with a failed oil pump. And a leak up front by the pump is un-nerving.

So i should use RTV inplace of the pump mount shaped gasket between the block and the pump? Then ill need the front mail seal between the shaft and the pump. Thats not the o ring your talking about though is it?

[entirelyturbo]

There is an O-ring on the left (as you're looking at the engine) side of the oil pump. You will see the old one when you remove the pump. Part number is 806919050.

Yeah, use RTV sealant. I use the Permatex black stuff.

It would be stupid not to at least replace your front main seal when you do this, as it's so easy to get off when you have the oil pump off. However, only put the seal in AFTER you have reinstalled the oil pump. Putting the seal in the pump and then trying to install the pump will cause headaches.

[Threshld1]

Ah like those 2 little o-rings on the rear cam support for the turbo oil and coolant feed lines. The ones the subaru dealer says they cant find a part # for. (as it continues to drip on my up-pipe)
Thanks for the tips ill be sure to put the seal on last

[napphappy]

Use permatex Ultra Grey, But its very imprtant not to use too much. Untold engine damage can ensue.

[ultrasonic]

I recently replaced my timing belt and related seals, including those on the oil pump. My records indicate the following part numbers:

Front Main Crank Seal 806733030 ($7 at Subaru dealer)
Oil Pump Rear O Ring 10991AA001 ($3 at Subaru dealer)

Double check 'em to make sure, but that's what my records indicate after I finished the whole job (timing belt, tensioner, water pump, all related seals and gaskets). You may find some further helpful info at the bottom of this thread:

http://www.bbs.legacycentral.org/viewtopic.php?t=27346

I also used Permatex Ultra Gray. Even in the scans of the MY91 FSM it indicates "liquid packing," i.e. RTV gasket material. I have never heard of a precut gasket for the EJ22T oil pump.

[Threshld1]

Hey question about the oil pan. Can it be removed without removing the entire lower member? Looks like i can just jack the motor up enough to get those rear bolts out. Anyone?

[Threshld1]

So got the pump off today.
Figured a fairly painless way to get the new seal installed. I used the old seal backwords against the new one. Then i put the timing sprocket and crank pulley back on. I then used the main pulley bolt to slowly press the whole assembly in. It seated perfectly first try. And putting the pump in first was much easier than trying to get it on strait with the seal in the pump.