Evo base gaskets leak
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Joined: Jun 2025
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Evo base gaskets leak
here's where im at it noticed a little oil from the rear barrel base gasket i just bought the engine wondering if I should run it for a bit kinda don't want to tear it down right away or what til it's more noticeable
Last edited by Toneloco; Mar 14, 2026 at 12:54 PM.
Seasoned HDF Member
Joined: Mar 2010
Posts: 21,092
Likes: 7,614
From: Poolville
Honestly Now's the Time to do it because you're going to have to do it anyways and just create more work if you put it in the bike and then you got to rip everything back apart doesn't make sense take care of it now. So much easier..
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Joined: Sep 2010
Posts: 15,428
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From: Beyond Fucital
A base gasket leak won't go away.
An EVO needs to be warmed up before riding, failure to do this results in poor metal expansion
resulting in base gasket leaks.
Just fix it now before riding season gets truly started.
Or wait until off season, if you have one.
An EVO needs to be warmed up before riding, failure to do this results in poor metal expansion
resulting in base gasket leaks.
Just fix it now before riding season gets truly started.
Or wait until off season, if you have one.
Seasoned HDF Member
Joined: May 2008
Posts: 21,132
Likes: 12,693
From: South Carolina
If the engine is not in the frame, now is the time to do the work.
While you have the engine apart for base gaskets:
Consider replacing the cylinder studs. Link to service bulletin M-1043
Pop the timing cover off and replace the inner cam bearing, lifters and breather gear.
Don`t buy lifters on ebay or amazon (too much counterfeit stuff out there), get them from a reputable source, such as WFO Larry (he ships fast and has very reasonable prices).
Link to Lifters
How many miles on the top end?
What year is the engine?
While you have the engine apart for base gaskets:
Consider replacing the cylinder studs. Link to service bulletin M-1043
Pop the timing cover off and replace the inner cam bearing, lifters and breather gear.
Don`t buy lifters on ebay or amazon (too much counterfeit stuff out there), get them from a reputable source, such as WFO Larry (he ships fast and has very reasonable prices).
Link to Lifters
How many miles on the top end?
What year is the engine?
Last edited by Dan89FLSTC; Mar 15, 2026 at 07:37 AM.
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