Topic: head gasket leak again WTF (Read 9977 times)

hdrider53 · « **Reply #15 on:** May 28, 2010, 09:15:32 PM »

Its more than likely the exhaust valve stem seal is bad. Looking into the exhaust port on front head
there is black oil deposits around the bottom edge of the valve stem guide and oil run marks around the inside of the exhaust chamber. The rear head looks clean and dry inside the exhaust port. But I have a lot more oil blow by at the intake manifold at the rear cylinder port going to air cleaner. I rode it without air cleaner to see where all the oil was coming from. So I have bad exhaust valve stem seal on front and probably a bad intake valve seal on rear. So much for using all SE parts for my build.

I'm going to ride for now and see if Zonottis will warranty the MCR heads and send me a new set.
Dont want to pull the heads now or no bike to ride and its summer.

Unbalanced · « **Reply #16 on:** May 29, 2010, 05:54:32 PM »

If you are going to do that carry spare spark plugs .. they tend to foul Good luck on the fixes ...

HD Street Performance · « **Reply #17 on:** May 29, 2010, 07:04:26 PM »

The newest heads have improved seals from the K-lines they used to use. You can change them on the bike with a "nubs" tool. Available from Goodson.

hdrider53 · « **Reply #18 on:** May 30, 2010, 06:18:06 PM »

Quote from: Unbalanced on May 29, 2010, 05:54:32 PM

If you are going to do that carry spare spark plugs .. they tend to foul Good luck on the fixes ...

Not sure I have a choice I cant just throw away a $780 set of heads.

Unbalanced · « **Reply #19 on:** May 30, 2010, 09:55:51 PM »

hdrider53,

Based on the feedback you have given, I would call around to some of the porters explain what you have and see if someone could do a quick turn around for you.

hdrider53 · « **Reply #20 on:** June 02, 2010, 09:38:13 AM »

I took them over to Nawlins Racing here in Denver. He is going to port them and do a valve job with new bronze guides and seals. That sucks to have to spend another $600 to fix a new set of heads. HD aftermarket stuff sucks, Zonottis wasn't much help either.

Unbalanced · « **Reply #21 on:** June 02, 2010, 08:57:49 PM »

That really stinks to hear they wont do squat for ya. Hopefully when you gt the heads back they will be right. How long they estimating your down time to be ?

Hope sooner than later so you get to enjoy the riding season.

Author Topic: head gasket leak again WTF (Read 9977 times)

hdrider53

Re: head gasket leak again WTF

Unbalanced

Re: head gasket leak again WTF

HD Street Performance

Re: head gasket leak again WTF

hdrider53

Re: head gasket leak again WTF

Unbalanced

Re: head gasket leak again WTF

hdrider53

Re: head gasket leak again WTF

Unbalanced

Re: head gasket leak again WTF