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Old 04-28-2006, 07:18 AM
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Locating An Oil Leak In My 1969 Camaro

Good morning guys,

I have a 69 Camaro 302 with an oil leak. About 2 years ago I replaced the rear main seal which I thought was leaking but it continued to leak. Maybe I installed it incorrectly. I put the larger of the two lips facing the front of the engine. I also installed a one piece FelPro pan gasket with a Moroso pan. The lip of the pan is dry. I do like those gaskets. Before that I rebuilt the engine 5 years prior with no leaks. Anyway It is not leaking from the top rear of the intake or the oil line in the rear of the block or the back of the valve covers. I also don't think it is leaking from the oil galleries but it's hard to tell with the enging installed. The whole top of the engine is dry because the top of the engine is collecting dust.

So what then the rear main seal? Well my first though would be yes, but I am not certain. You see I have both sides of the engine dripping, from the bottom of the oil filter and the starter. It is also leaking at the bottom of the oil pan and the bottom of the bell housing ( 4 speed car ). And from the bottom of the trans. No, it's not gear oil.

After all of this back ground my question is, if it is leaking from the rear main seal would the oil get to all of those locations and be dripping? I figured it would just leak out of the bottom of the bellhousing. Or could it fling and splatter everywhere from the fan or flywheel. The clutch is not slipping. I just don't want to replace the rear main seal if I don't have too.

Anything I mean anything no matter how small a suggestion is really appreciated. If you think the seal needs replacing again do you have and tip/tricks or suggestions. Thanks

You can see the car in my photos on the 2nd and 3rd page.


Last edited by daveh; 04-28-2006 at 07:19 AM. Reason: Spelling
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Old 04-28-2006, 08:46 AM
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start at the top and work your way down, valve covers are the easiest, and most common place to find an oil leak. Then you've got the distributor and rear of the intake which are pretty common too, plus its easy to find if the top of the motor is leaking because you can simply look behind the intake and feel around with a finger for fresh oil.

You can also buy a dye additive for your oil that can be seen with a black light. This will hlep you identify your source.

Good luck!

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Old 04-28-2006, 08:53 AM
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is it coming from the rear cam plug.the very rear center of the block and it looks like a freeze plug.it along with the others should have been installed with a good non-harening sealer like permatex 300.5 yrs. seems a little soon for a main seal.have you had trouble with oil pres.?
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Old 04-28-2006, 09:50 AM
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No my oil pressure is great, no problems. And it isn't coming from the cam plug.

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Old 04-28-2006, 10:28 AM
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get a mirror & check the rear of the intake, the oil sending unit or the connection if u have a gauge, the dist where it meets the block, the back of the valve covers. then be sure ur oil filter isnt leaking around the gasket. then if all else fails & u still dont find the leak or think it's one of the above oil leak problems then get a big piece of cardboard or some newspaper & lay it under ur car after u have driven it. let it set overnight to let the oil drip on it. if u see oil on the cardboard or paper u have an idea where to look to see the leak....joe
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