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9.9 merc carb problem

7/11/20 @ 5:43 PM
ORIGNAL POST
chopper
User since 7/2/01

I cleaned the carb and had a gas leak after.  I think it is the bowl gasket which is hard to align.  Can you use silicone or gasket stuff to hold something like that in place or does it come loose and foul the carb?

DISPLAYING 1 TO 8 OF 8 POSTS
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7/12/20 @ 5:14 PM
SnakeSter
SnakeSter
MEMBER since 7/9/12

So I take it that the float bowl on this engine doesn’t have a groove for o-ring? I guess they all don’t. 

7/12/20 @ 12:54 PM
chopper
User since 7/2/01

I ended up using a little vaseline.  I learned that silicone and sealants are a no no. 

7/12/20 @ 11:45 AM
oncebitten
oncebitten
User since 12/7/17

Good tip Westfield

7/12/20 @ 6:35 AM
westfieldW
westfieldW
User since 10/9/16

Put a little bit of grease on the gasket that will help it stay in place as long as your components are dry. I have never rebuilt a carburetor I just use this trick on other gasket applications.

7/11/20 @ 9:55 PM
Plmlk
Brent Hess
MEMBER since 12/18/07

I am assuming you completely removed the carburetor, and rebuilt it on your bench?

I just rebuilt the carb on my 15 horse Johnson, the bowl gasket was four screws, really wasn’t much trouble.

What are you up against, have any pictures?

The Woodlands Resort
(262) 661-3968
7/11/20 @ 9:46 PM
chopper
User since 7/2/01

I bought the kit - it had a bowl gasket.  It is hard to get the bowl gasket lined up without some stickem. 

7/11/20 @ 6:36 PM
Plmlk
Brent Hess
MEMBER since 12/18/07

You can buy a rebuild kit for somewhere around $20, that is the best way to go - it includes the bowl gasket. 

The Woodlands Resort
(262) 661-3968
DISPLAYING 1 TO 8 OF 8 POSTS
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