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Discussion Starter #1 (Edited by Moderator)
Trying to find out why I keep blowing the front and back intake manifold gaskets. Any help/suggestions?

Trying to find out why I keep blowing the front and back intake manifold gaskets. Any help/suggestions?

sorry I thought I had deleted the first post.
 

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I {Heart} Hookers.
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OEM? Never saw a set "blow"..... Unless youre having a back firing issue. Lube with silicone cream. Install. Good for 7-10 years. Unless its a 2006 xl which had a one year only intake gasket with issues.
 

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(overtightening)they don't like me to post this, but`
try take the carb off
haVE A PARTNER hold the intake level
butter-lube (lightly) the "o" rings with RTV
tighten the clamps, but don't overtighten.
let it dry overnight
reinstall carb.
any excess thatt balls up will go out the exhaust.
i did this in '75 on a FXE and never had a intake problem again
 

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Just Ride
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Trying to figuire out why you posted this more than once.
 

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Retired citizen
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Install dry or with a light coat of silicone spray, clean the intake manifold and flanges with steel wool, install and square up to the heads.
 

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Wayward Son
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(overtightening)they don't like me to post this, but`
try take the carb off
haVE A PARTNER hold the intake level
butter-lube (lightly) the "o" rings with RTV
tighten the clamps, but don't overtighten.
let it dry overnight
reinstall carb.
any excess thatt balls up will go out the exhaust.
i did this in '75 on a FXE and never had a intake problem again
You hope.
 

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Discussion Starter #7
thanks for the insight. Dave63, yes OEM, and yes some backfire. its been one year since we put new re-man motor in, also has highway cam in it.
 

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I {Heart} Hookers.
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thanks for the insight. Dave63, yes OEM, and yes some backfire. its been one year since we put new re-man motor in, also has highway cam in it.
You need to cure intake backfiring. This will happen no matter how good the gaskets are.
Carbed bike or efi?
 
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