Oil leak top of engine left side
 

Took my failing starter off to find oil had been leaking directly onto it. This looks like the source of the leak. I'm gonna replace the valve cover because that's my best idea. Please help.

Re: Oil leak top of engine left side
 

I would clean around the black plug..... then check it later.

It looks as if there is oil around the bottom area of that plug.

Re: Oil leak top of engine left side
 

Agree with CraigW, that plug is a very common leak area, buy a new one and reseal it

Re: Oil leak top of engine left side
 

When you replace it, look for an aluminum plug those will last longer than a replacement exactly the same.

I replaced one of these on my wife's crv and it began to leak a few months after. The plastic plug broke down and was leaking from a crack right thru the middle of it. This time I looked for an aluminum plug online and replaced it with that, its been leak free ever since :tup::cool:

Re: Oil leak top of engine left side
 

That's weird, someone may have been a little careless and broken it during install or service?
The rubber O ring will usually last 100k or so like the rest of the rubber seals.

Re: Oil leak top of engine left side
 

The plastic plug was brittle and broke easily when i was inspecting it, so I chose a metal plug with o rings to be done with it

Re: Oil leak top of engine left side
 

Oh ya, the plastic does get brittle with age (thermal cycles), upon removal at least one of the barbs almost always snaps off.
But once that sucker is installed it's not intended to come back out, until it needs replaced.


I like these better than the large round rubber coated plug in my old Mazda truck engine that oozes oil.

Re: Oil leak top of engine left side
 

​​​​​​Have a link to where you got yours? Have a part # or name? Let us know if the aluminum replacement is common enough to find at a typical AutoZone type store.

Re: Oil leak top of engine left side
 

I found it on Ebay, just type in civic cam plug and you should see many there. I personally got one with three rubber o-rings on it so there is less of a chance of leaks.