drip,drip,drip.
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Road Master
Joined: Sep 2006
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From: Vermont
drip,drip,drip.
I've been trying to stop an oil drip from the primary case on my 07 FXSTC for 2yrs now....I put the case on a trued marble table and it rocks like a chair!!!!!
The gasket surface on the case is concaved and it has "nubs" on the dogs where the screws go....WTF....The gasket is so thin that the nubs were hitting the inner primary case and leaving a gap....I sanded down the nubs and put the case back on with permatex forma gasket and a new HD gasket and the freakin' thing still drips !!!!.......Now....why is it concaved? Why the nubs? and finally where the hell was HD'S quality control ? Any thoughts?
The gasket surface on the case is concaved and it has "nubs" on the dogs where the screws go....WTF....The gasket is so thin that the nubs were hitting the inner primary case and leaving a gap....I sanded down the nubs and put the case back on with permatex forma gasket and a new HD gasket and the freakin' thing still drips !!!!.......Now....why is it concaved? Why the nubs? and finally where the hell was HD'S quality control ? Any thoughts?
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Joined: Apr 2006
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From: Billings,Mt.
You might be able to sand it flat.Place some double back tape on a flat surface like a surface plate,etc-.then put some sand paper on the tape and sand the cover in a figure 8 motion.
Or replace the cover.
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Road Master
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From: Vermont
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Road Master
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From: Southern Arizona
What about the inner primary? Has it been warped by torquing down on the outer to stop the leak?
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Did you check the gaps ect with a feeler gauge , just curious how far out.
The sandpaper , carpet tape method should work for you as long as its not to far out,
just take your time with it.
When you get close remove the carpet tape and tape the outer edges of the sandpaper only for a flatter surface yet.( use a finer grit also ).
An hour of your time could save you some serious coin here.
It must have been improperly clamped in the manufacturing process ( when dressing the
mounting surface) or stress in the casting. ( the heat cycling should rule out any residual stress if that was a factor )
I've been there ( toolmaker ).
It wouldn't hurt to check the inner primary with a straight edge also , may be a factor , or could be the culprit.
The sandpaper , carpet tape method should work for you as long as its not to far out,
just take your time with it.
When you get close remove the carpet tape and tape the outer edges of the sandpaper only for a flatter surface yet.( use a finer grit also ).
An hour of your time could save you some serious coin here.
It must have been improperly clamped in the manufacturing process ( when dressing the
mounting surface) or stress in the casting. ( the heat cycling should rule out any residual stress if that was a factor )
I've been there ( toolmaker ).
It wouldn't hurt to check the inner primary with a straight edge also , may be a factor , or could be the culprit.
Last edited by High Gear; Apr 21, 2010 at 03:35 PM.
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