Base Gasket - 93 EVO - Have A Question
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Joined: Dec 2018
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From: San Diego
Base Gasket - 93 EVO - Have A Question
Is it essential to have a totally dry base gasket when installing new ones? There is so much oil in the process of oiling the cylinders, pistons & rings while putting everything back together. So easy to get oil on the new base gasket in the process.
Tourer
Joined: Apr 2007
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Don't use so much oil. When you put the cylinder on The top ring pushes most of it out anyway.
Clean & dry for the gaskets to seal. I also true up the cylinder gasket surface on the lathe. Evo cylinders are almost never flat.
Clean & dry for the gaskets to seal. I also true up the cylinder gasket surface on the lathe. Evo cylinders are almost never flat.
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Joined: Dec 2007
Posts: 12,084
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Evo cylinder bases are not machined from HD.
The spigot OD is turned, but the machining process ends there, and upon close inspection, you can see where the tool ends.
Trueing up a set this morning, as a matter of fact.
Scott
The spigot OD is turned, but the machining process ends there, and upon close inspection, you can see where the tool ends.
Trueing up a set this morning, as a matter of fact.
Scott
Sponsor
Joined: Dec 2007
Posts: 12,084
Likes: 829
We clean/prep surfaces prior, touch, "0" the indicator, skim, and dial .002" at a time until gasket surface is fully machined.
Did 2 sets of those today, total.
Our Facebook has evidence of the process.
Scott
Did 2 sets of those today, total.
Our Facebook has evidence of the process.
Scott
Last edited by Hillsidecycle.com; Dec 18, 2018 at 04:20 PM.
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