Top End Oil Leak

[JohnnyTheCraneGuy]

Hey all! I've recently been chasing an oil leak, and I was wondering if anyone else has experienced similar issues. I replaced all of the grommets for the top of the valve cover but I'm still leaking oil on the right side of the bike.

I believe its the capped nuts and washers that are in the valley with the spark plugs. I was also looking on Partzilla and seen that they have two different washers listed. Is this correct? Lastly is there anywhere else that I could source these parts, i.e locally or through rpm?

Thank you all and hope everyone has been well.

[JohnnyTheCraneGuy]

Here's some pics I forgot to add

[RPM - Robert]

The right two studs are oil galleys they are sealed at the nut with copper washers found here https://www.rpmracingca.com/proddetail.asp?prod=90201-10128

If is leaking between the head and the barrels then it is the dowels seals and the head will have to be removed to replace. We have those in stock as well.

[JohnnyTheCraneGuy]

Right on Robert thank you sir!

[red]

Johnny,
Clean off all the oil, and spray the area with aerosol body powder.  When you start the engine, the dry powder will get dark first where the oil comes from. Shut down the engine, before the oil goes everywhere. Then you will know exactly what needs fixin'.   

[JohnnyTheCraneGuy]

Will definitely try this Red, you're the man!

[86FJNJ]

What weight oil are you running and is it conventional or synthetic? Just curious because if you are running 10-40 synthetic I wonder if 20-50 conventional would reduce the leak

[red]

What weight oil are you running and is it conventional or synthetic? Just curious because if you are running 10-40 synthetic I wonder if 20-50 conventional would reduce the leak

86FJN,

Maybe so; synthetic oil is a smaller molecule than dino oil.  People who switch to synthetic oil often have a few leaks they never had before.  Once you seal up these new leaks, though, the machinery will last much longer than it would on new dino oil every few months.  Those l-o-n-g powertrain warrantees on new vehicles come from using synthetic lubes, not from better designs of the machinery. Usually you will get better gas mileage with synthetic oil, too.

[JohnnyTheCraneGuy]

I haven't changed the oil on this bike yet, but I want to say that PO was using 10w40. I'm going to move forward with swapping the copper washers first.

[Pat Conlon]

Oooooh, oooooh, oooooh...this is turning into an oil thread!

Mr. Kotter, Mr Kotter, Mr. Kotter....

 

[RPM - Robert]

I haven't changed the oil on this bike yet, but I want to say that PO was using 10w40. I'm going to move forward with swapping the copper washers first.

Do one head stud at a time. Do not loosen both at once.