oil leak driving me crazy

[cb7k-9 unit]

I have a 1993 ex with a serious leak. i thought it was the oil filter seal(because an oil change was a bit over due). but i just changed it and its still leaking. the oil is hitting the exhaust pipe right where the collector is.
Its not the oil pan, valve cover or head gasket. there is i think a drail plug right under the filter. could that have something to do with it? Need help!!!

[mendozaed20]

I am the same i changed valve cover gasket, tube seals lower and upper. So i am going to go under see what i can find.

[deevergote]

Wash the engine around the leak. That will show you very clearly where it's coming from.

The oil pressure sending unit is near the filter, I believe. That may be a source of a leak.

[cb7k-9 unit]

would the sending unit have the switch inside of it? because i think thats what it is. its located right above the oil filter and would look as if the oil filter is leaking. but when i called advance, they only have the switch.

[deevergote]

Yeah, I believe people refer to it as the oil pressure switch as well. It's the only thing with wires attached sticking out of the block near the filter.

[TracieS]

Maybe cam seal because my leak sounds similar it was draining from the top to the bottom down by the oil filter I changed all my seals and come to found out that what it was.

[deevergote]

If it IS the cam seal, that could be bad. That could result in oil on the timing belt, which would increase the risk of the belt snapping.

[TracieS]

Yea with mine I had the upper cover off my car and oil got on my timming belt and my power stearing belt caused it slip off under tension and messed up my harmonic balancer when it came off.

[cb7k-9 unit]

i don't think its the cam seal. i just replaced the timing belt and balance... plus i removed the top timing cover off so i can inspect the belt when ever i open the hood and it has no oil on it. i just got the new oil sender switch and its alot smaller than the oem switch. i can even get the old one off. its huge!! anyone know the size?

[GeoffM]

I think there's a bolt under the oil filter for draining the cooling system.

[VoloCB7]

Is it coming from the plug directly below the oil filter? That is where it was leaking on my car.



It is a large hex key bolt, just pull it out, clean it with brake cleaner or any anti-oil product, and put some lock tight on the threads. It won't leak again

[remix405]

this is happening to me too but i know mine is coming from the rear main just wash the engine and i think theres a dye you can put in your engine so when it leaks you know where its coming from... can someone confirm this?

[VoloCB7]

Yes, you can purchase it from Autozone or whatever your local auto parts store is. You add it to the oil and use a UV (black) light and it glows like Predator blood They also have it for the cooling system. It is the fastest way to find a leak! You can also get a kit that has UV glasses and a bendable UV light for around $30