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Sportster Motorcycle Air intake, Carburetor, EFI, Fuel, and Exhaust Problems, advice and/or how tos for Sporster and Buell motorcycle carburators, Electronic Fuel Injection (EFI), Air Intake, Fuel and Exhaust.

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  #1  
Old 4 Weeks Ago
gary59 gary59 is offline
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Default Intake Seals

Should I put grease on new intake seals when installing?
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  #2  
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Default intake seals

I install them dry.
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Red high temperature grease!

John
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Default

Quote:
Originally Posted by gary59 View Post
Should I put grease on new intake seals when installing?
I used silicone grease on mine. It won't attack the rubber.
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Default

I followed the factory manual when installing new seals after head porting.
Apply a liberal amount of engine oil to valve stem before installing the valve.
Place a protective sleeve over the keeper groove and coat the sleeve with oil.
The sleeve is necessary to protect the new seal from being damaged by the
sharp edges of the keeper groove.
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Didn't you ask this question on the "other" forum?
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Default

Quote:
Originally Posted by gary59 View Post
Should I put grease on new intake seals when installing?
I would not! Grease can cause the seals to squeeze out of place.
I have tried it with red rubber grease and they failed right away.
Install them dry.
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Quote:
Originally Posted by Randy_rots View Post
I would not! Grease can cause the seals to squeeze out of place.
I have tried it with red rubber grease and they failed right away.
Install them dry.
I've changed quite a few manifold seals using red high temp grease. Never had a problem with them failing. Never.

John
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check your f.s.m. lubricate with dish soap detergent or tire lube.from my '03 f.s.m.
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Quote:
Originally Posted by brucstoudt View Post
check your f.s.m. lubricate with dish soap detergent or tire lube.from my '03 f.s.m.
Would you show that bit in FSM? Because there's no mention about greasing the intake seals in any of my factory manuals.
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