124" winter build...
Seasoned HDF Member
Joined: Mar 2007
Posts: 66,948
Likes: 4,573
From: TOAK western branch
Funny. Mine is doing the same. Did a leak down test and it was around 7* on both so that's good but both the front an rear have an oil leak. Not looking forward to changing out the head gaskets. Don't want to disterb the base gaskets. Strange.
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Road Warrior
Joined: May 2010
Posts: 1,718
Likes: 15
From: Bay area, CA
Yea I'm a little weary of disturbing the base gaskets too, I'll do one at a time and make sure to torque the head back down before rolling the motor over. I'm wondering if I roll the cam to the base circle if I can leave the pushrods adjusted as they are now or if I should collapse them and re adjust again.
It's hard to see in the picture but there's a little bit of oil on the cooling fins under the head
Is it normal to have oil in the intake with external breathers?? And it looks like my filter is letting a little bit through
It's hard to see in the picture but there's a little bit of oil on the cooling fins under the head
Is it normal to have oil in the intake with external breathers?? And it looks like my filter is letting a little bit through
Last edited by monster715; Apr 12, 2015 at 06:08 PM.
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Road Warrior
Joined: May 2010
Posts: 1,718
Likes: 15
From: Bay area, CA
Ok new gasket is in, I'm going to do the front head too since everything is off, I'm using a different torque method this time so I might as well fix the front one.
Here the leaking gasket
More buildup then I expected
Here the leaking gasket
More buildup then I expected
Last edited by monster715; Apr 12, 2015 at 08:27 PM.
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Road Warrior
Joined: May 2010
Posts: 1,718
Likes: 15
From: Bay area, CA
Yea it looks like it may be from the leaking gasket. You can see on the piston it looks like it was coming in from the lower left stud. The only thing I can see on the gasket is the viton has rubbed off in a few spots. I doubt it has anything to do with the mating surfaces, I think I leaned on it a little too hard before the motor had warmed all the way up. My fault. I'll try and get the front gasket done tomorrow and I'll take a picture of that piston and compare the two. I need to get the front rocker box gaskets and breather orings for both heads
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Road Master
Joined: Aug 2012
Posts: 854
Likes: 20
From: CT
There should not be oil coming down the valve stem, that's what valve seals are for, if they're good. No reason to readjust pushrods, just disassemble and assemble on base circle like you would with solid pushrods.