leaking engine cover

croissant_warrior · 2025-09-22T23:37:54-0400

I've got a nasty leak on the stator side of the engine. It's not new, and root cause is likely me being too aggressive with the scraping, a long time ago.

I applied a Hylomar Blue sandwich (a bead on each side of a new paper gasket) and it was fine for a short while, but the leak is back.

Suggestions on a product that's more solid?

~CW

Postie Jim · 2025-09-22T23:49:15-0400

I am assuming that you mean the clutch cover. If it's leaking after a new gasket and sealant I suggest you check that the cover is not warped.

Motorpsychology · 2025-09-23T10:08:34-0400

If you suspect a gouge from scraping, you may be able to remedy it with JB Weld. Remove the cover and remove the RTV (blue stuff) and gasket using a brass wire brush and a gasket solvent. Take your time. Apply the JB Weld compound to the worst gouges, and let it set up 24+ hours. sand it back down flush carefully, you don't want to create a valley. apply a hi temp sealant https://www.oreillyauto.com/detail/...il/c/j-b-weld/j-b-weld-3-ounce-rtv-silicone/jbw0/31314?q=hi+temp+gasket+sealant to both surfaces. Tighten the clutch cover bolts in a criss-cross pattern to 10Nm/7.5 lbf ft/88.5 lbf in. Let the RTV set up before riding the bike.

If it is the generator side, the torque values are the same.

croissant_warrior · 2025-09-23T10:59:16-0400

It is the generator side, do I need to empty the oil out of the engine?
Also, about the RTV gasket, how liberally do I apply that? No need for a paper gasket?

leaking engine cover

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