Base gaskets leaks
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Intermediate
Joined: Aug 2018
Posts: 42
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From: Alberta
Base gaskets leaks
Just acquired a 1985 Wide glide. I think I have all the Trany and primary oil leaks sorted out now. So now I am thinking about the engine. Had several evo bikes before including a 1992 FLHS that had base gaskets leak. Were the early evos also prone to base gasket leaks??? Or were the early ones less prone to that issue?? Thanks.
Dirt don't hurt
Joined: Jan 2011
Posts: 21,065
Likes: 4,561
From: Haslet Texas
Just acquired a 1985 Wide glide. I think I have all the Trany and primary oil leaks sorted out now. So now I am thinking about the engine. Had several evo bikes before including a 1992 FLHS that had base gaskets leak. Were the early evos also prone to base gasket leaks??? Or were the early ones less prone to that issue?? Thanks.
Banned
Joined: May 2018
Posts: 4,576
Likes: 978
From: Viet Vet, crossroads
The AL cylinders move.
Warms ups are important.
Check the base of cylinders and spigot holes for flatness.
Probably they might maybe have dimpled after all these years.
My cure ? Cast iron cylinders!
They dont move and seal everything better.
New studs as the elasticity are probably dead in the 30-year-old crap. (deck ht and squish become one less subtraction)
A Quality gasket sealer like Yammabond .
If Cast Iron is used you do not even need a gasket, just a sealer.
Warms ups are important.
Check the base of cylinders and spigot holes for flatness.
Probably they might maybe have dimpled after all these years.
My cure ? Cast iron cylinders!
They dont move and seal everything better.
New studs as the elasticity are probably dead in the 30-year-old crap. (deck ht and squish become one less subtraction)
A Quality gasket sealer like Yammabond .
If Cast Iron is used you do not even need a gasket, just a sealer.
Last edited by Kingglide549; Dec 9, 2018 at 05:04 AM.
Seasoned HDF Member
Joined: Jul 2014
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From: Cental, MI
Can, but, won't work worth a ****.. Folks need to learn the Warm up of the Sandwich...
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Banned
Joined: May 2018
Posts: 4,576
Likes: 978
From: Viet Vet, crossroads
Turns out, it was the best mistake I have ever made with the EVO.
I will never go back to rubber cylinders for this application.
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How many times this has been posted over the years ... It's an innate part of owning an EVO