Thread: 350 oil leak

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Just started a freshly o/hed 350 and have a leak in the rear oil pan area. It only drips small drops ( actually it's driping on the flywheel and is seen as a fine mist) while the engine is running.

I'm thinking rear main seal, any opinons?

Thanks

I'm assuming the engine in in the car. I'd clean off everything and look with a light to see where it is coming from oil can leak from a lot of places in the rear valve covers, seal, pan, O/P sending unit, freeze plug for cam. I wouldn't pull it back out till I knew just where it is coming from

I agree with cffisher, there are places to look first. Rear manifold seal is a bad one for leaks, as is the oil pressure sender. Leaks here can find their way into the bell and onto the flywheel. Though I must admit, the fine mist bit does point to a bad crankshaft seal. You should be able to see up from the bottom if the leak is from the center of the 'wheel, or just on the outside perimeter.

Thanks to all, will let you know.

if you just cant seem to tell buy some oil dye and use a UV light, you can trace a leak in minutes with that method

Thanks thesals for jogging my memory. Worked at GM many years ago and that's what they used then. Any idea what kind of additive would glow?

http://www.diynetwork.com/diy/en_mai...271227,00.html

UV light, well theres all sorts of places you can get that.... dye... i know pep boys has it back at the parts counter cause i used to work for them, if you've got one in your town, that'd be the place to go... runs like $3.79 or somethin like that