Author Topic: Qjet Air Horn Gasket  (Read 2434 times)

Offline firebird*boz

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Qjet Air Horn Gasket
« on: March 18, 2012, 04:20:34 AM »
Hi all I recently rebuilt my Qjet Have now installed back onto engine but noticed that the gasket between the air horn & fuel bowl is wet ....(mostly at front of carb) is this normal??

any help would be great. Thanks adam

Offline Schurkey

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Re: Qjet Air Horn Gasket
« Reply #1 on: March 18, 2012, 08:57:09 PM »
Pretty common.  The air horn and main body warp from over-tightened front bolts.  There isn't perfect pressure on the gasket any more.

Could relate to a high fuel level; or fuel frothing.

Does it actually leak, or just seep enough to wet the exposed part of the gasket?
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Offline firebird*boz

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Re: Qjet Air Horn Gasket
« Reply #2 on: March 19, 2012, 01:15:48 AM »
Thanks fore reply....the exposed portion of the gasket is wet ...not leaking just wet kinda like a capillar action I gues?... is this normal or should i try to get a better seal between airhorn & fuel bowl?

Offline von

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Re: Qjet Air Horn Gasket
« Reply #3 on: March 19, 2012, 03:04:38 AM »
They all do it.  Modern air horn gaskets wick gas. If you stick the edge of a new gasket vertically into a pan of gas, the gas will wick upwards through the gasket for as long as you hold the edge in the gas. I spent a lot of time and money chasing this problem on more than one carb, only to find out it's the gaskets.