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93 leg Replacing All Motor Seals

Posted: Sat Nov 15, 2014 1:57 pm
by 93subis
Hey couple questions guys, my 93 sedan spews oil like crazy using about a quart of oil a week and the oil is dripping onto the exhaust so before it catches on fire I have decided to fix it, is it worth replacing all the seals, and fixing a cracked head on a motor that has 205,909 miles on it or would my best bet be just to swap the motor out? and the whole underside of the car is coated in oil so I suppose that is a free undercoating :lol:

Re: 93 leg Replacing All Motor Seals

Posted: Sat Nov 15, 2014 5:53 pm
by robertpaige
Are you sure the head is cracked? The motor seals aren't difficult to replace. I would do the front seals: cam and crank. Then it could be possible your oil pan is leaking, and the rear cam o-ring. Then there is the rear main which hardly actually leaks, but right next to it is the Oil Separator Plate which is a huge leak point. There is also a cover for a distributer cap in other markets that can leak oil as well.

If it were me I would just replace all the seals and call it good if the motor runs well.

Re: 93 leg Replacing All Motor Seals

Posted: Sat Nov 15, 2014 7:12 pm
by 93subis
Yeah me and my father recently put a quart of oil to watch and see where it was leaking from and the only leak points were the valve cover gasket majorly and there was also some dripping from the head every once and a while. what I might end up doing though is jb welding the leak point on the head cause its not cracked to bad and most the seals cause it could use it but mostly the front seals, does the motor have to be lifted some to get to the seals, or can it be done still all the way in the car? and the oil pan isn't leaking I replaced it in 2013 cause I thought that could be part of the problem but it wasn't.

Re: 93 leg Replacing All Motor Seals

Posted: Sat Nov 15, 2014 7:47 pm
by mike-tracy
The rear main seal and oil separator plate need the engine to be separated from the tranny to do, but otherwise you can get pretty much all the rest in-car.

Re: 93 leg Replacing All Motor Seals

Posted: Sat Nov 15, 2014 8:09 pm
by 93subis
okay cool cause were I live right I have no garage, :(