evo base gasket
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5th Gear
Joined: Mar 2016
Posts: 9
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From: Michigan
evo base gasket
Ok so the base gasket on my rear cylinder has been leaking for a while. I got got a noise that kinda sounds like the primary dragging on case. Checked chain and its good. Is it possible for air to be sucked in and mix with the oil thus making noise while going through oil pump? Noise only happens when bike is warm. Clutch in or out and if its in gear or not does not affect the noise. Any
ideas?
ideas?
Seasoned HDF Member
Joined: Aug 2007
Posts: 8,199
Likes: 3,087
From: NW AR
The noise has nothing to do with the oil leak. Does the noise change with engine speed or with bike speed? If you can hear it when it is not moving, then get a mechanic's stethoscope and try to find the location it is loudest at.
Seasoned HDF Member
Joined: Feb 2008
Posts: 22,999
Likes: 11,439
Base gasket and noise have nothing in common. Base gasket seeping is common on EVO. Often due to failure to warm it up before hitting it hard. Was more common in early ones . better gaskets and install have reduced that.
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5th Gear
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From: Michigan
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Seasoned HDF Member
Joined: Aug 2007
Posts: 8,199
Likes: 3,087
From: NW AR
Lifters or inner cam bearing. Don't ride it until you pull it apart. I would not even start it until it has been put back together. Inner cam bearing should be replaced with the older style bearing. Lifters: I stick with HD. There are lots of threads on them.