Leaking Primary
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Outstanding HDF Member
Joined: Oct 2005
Posts: 2,810
Likes: 1
From: Escondido, Ca.
Leaking Primary
Building a custom bike and...
My biggest problem has been sealing the primary. I used the o-rings that came with the primary kit, bought others from Harley and even added gasket sealer to the o-rings but the damn thing still leaks. My tranny is offset for the rear tire so I have a 3/4 spacer between the engine and inner primary case. There are two o-rings. When the o-rings get put on, the spacer to engine fits metal to metal and I can not feel the o-ring, same with the spacer to inner primary - so its no wonder it leaks.
I have ordered fatter o-rings in hopes to cure this problem. It seems to leak a lot but when I check the primary, oil tank, and tranny, they are full.
I must be using rabbit oil - it multiplies
Anyone have any tricks to share here??
My biggest problem has been sealing the primary. I used the o-rings that came with the primary kit, bought others from Harley and even added gasket sealer to the o-rings but the damn thing still leaks. My tranny is offset for the rear tire so I have a 3/4 spacer between the engine and inner primary case. There are two o-rings. When the o-rings get put on, the spacer to engine fits metal to metal and I can not feel the o-ring, same with the spacer to inner primary - so its no wonder it leaks.
I have ordered fatter o-rings in hopes to cure this problem. It seems to leak a lot but when I check the primary, oil tank, and tranny, they are full.
I must be using rabbit oil - it multiplies
Anyone have any tricks to share here??
Thread Starter
|
Outstanding HDF Member
Joined: Oct 2005
Posts: 2,810
Likes: 1
From: Escondido, Ca.
RE: Leaking Primary
It ended up being the 3/4 inch chrome spacer between the engine and inner primary case. The o-ring seats were way off.
I got a new aluminum spacer and used the stock o-rings - now no leaks.
I got a new aluminum spacer and used the stock o-rings - now no leaks.
Outstanding HDF Member
Joined: Oct 2005
Posts: 2,981
Likes: 1
From: Los Angeles, CA (live in Manteca, CA)
RE: Leaking Primary
I'm glad you fot that repaired. I know how frustrated I get if I have something that just want act right it get to throwing things at it then end up buy a new one.
Grand HDF Member
Joined: Dec 2004
Posts: 4,513
Likes: 4
From: Midland, TX
RE: Leaking Primary
I've always been told that you could use silicone sealer on the gasket area to eliminate the leaks. Since you are supposed to replace the gasket every time you pull the primary cover, using silicone should not be a problem.
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