oil leaking on to exhaust

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oil leaking on to exhaust
charlesskelter avatar
charlesskelter
+1y
Anyone know where it could be coming from? I can't see the point of origin. The valve cover was replaced a couple months ago and still dry, but wouldn't leak enough to cause this anyway. It looks like I've blown my radiator when I stop after any longer trips. I commute 35 miles each way. Short trips you just smell the burning oil. I'd love to get this fixed.
gcncsuhd avatar
gcncsuhd
+1y
Where is it leaking onto your exhaust? On the manifold up top? Down lower? Look like it is coming from the back of the engine?
charlesskelter avatar
charlesskelter
+1y
Looks like it's coming down from the front to middle. I can see it all over the heat shield and it looks like it is in on the back side of the front as well. I know I have a few oil leaks to address as there is oil all over the block towards the bottom and the a/c compressor and power steering pump are both coated in oil.

I wish I had an easy way to get pics on here from my cell.
Cusser avatar
Cusser
+1y
Valve cover gasket or distributor oil seal come to mind for leaks up front, which can then blow rearwards.
90-b22dawg [andrew] avatar
90-b22dawg [andrew]
+1y
oil pump is also mid front engine.
axel breaker earl avatar
axel breaker earl
+1y
First I would replace the distributor O-ring, clean it all up before hand so when you run it after the O-ring change out, you can see if it's done any good.

The next thing to look at is the front camshaft oil seal and the front crankshaft oil seal, and they use the same exact part as well. You can remove the upper timing cover and see if there is oil behind that, if so, your camshaft seal is leaking. You can do the same with the lower timing cover to have a look at the crankshaft seal.

The distributor also has an oil seal INSIDE of it that keeps the oil out of the inside of the distributor......so if you remove the distributor cap and there is oil inside the lower edge of the distributor, then that inside seal is leaking.

Bottom line......if you do a major engine clean-up, it will be easier to find where the oil is leaking from, more than likely.
charlesskelter avatar
charlesskelter
+1y
I've checked online at the major parts chains and I can not seem to find the distributor o-ring(s). Do you know a source for them?

I will try to clean it up before replacing it once I find new o-rings, but last time it barely wiped any of it off. I'll check tomorrow to see if the inside has any oil in it as well as if there is any oil behind the timing belt cover after I find some place to inspect my bike. I'll also check to see if anything is noticably leaking from the oil pump.
Cusser avatar
Cusser
+1y


Mazda dealer, or try sponsor

The outer distributor O-ring is #0107-18-201
axel breaker earl avatar
axel breaker earl
+1y
Here is the Victor Reinz part number for the O-ring on the distributor housing.

thread post photo
Cusser avatar
Cusser
+1y
Who's Victor Reinz?

I still have the new distributor O-ring from the FelPro kit from my rebuild, didn't replace it then.