1966 Johnson 33HP Carb Float Issues... Cork Sealant?

Lonestar66

Cadet
Joined
Jan 13, 2019
Messages
14
My 33hp Johnson outboard had a Fuel flooding issue last season that was intermittent. I took the bowl off and discovered the Cork float was rubbing against the bowl slightly. The float is a very tight fit in the float bowl, its not the original 1966 float but it is an OMC/Johnson/Evinrude part. There is a small amount of wiggle on the Brass arm that is attached to float but seems to be a normal amount for a float.
I want to trim/shave some of the OD of the float to have more clearance inside the bowl. How would I go about resealing the bare exposed cork?

Float Part#: 0375792
Picture of Float: https://www.marineengine.com/parts/images/hg/omc/0375792.jpg
 

Tim Frank

Vice Admiral
Joined
Jul 29, 2008
Messages
5,346
If you can guarantee no ethanol contact you can use shellac....as they did originally. If not.... if you have a decent gas tank repair shop nearby, take the float along to them and see if they would dip it in tank sealer for you.
 

Newyota

Petty Officer 1st Class
Joined
Jul 2, 2012
Messages
254
My 33hp Johnson outboard had a Fuel flooding issue last season that was intermittent. I took the bowl off and discovered the Cork float was rubbing against the bowl slightly. The float is a very tight fit in the float bowl, its not the original 1966 float but it is an OMC/Johnson/Evinrude part. There is a small amount of wiggle on the Brass arm that is attached to float but seems to be a normal amount for a float.
I want to trim/shave some of the OD of the float to have more clearance inside the bowl. How would I go about resealing the bare exposed cork?

Float Part#: 0375792
Picture of Float: https://www.*****************/parts/images/hg/omc/0375792.jpg

Is the motor a skitwin?
 

Lonestar66

Cadet
Joined
Jan 13, 2019
Messages
14
Is the motor a skitwin?

Pretty much, its the Johnson version. Great Motor, Powerful and Pretty Simple to work on. Most of the parts are Still available for this outboard!
1966 Johnson Super Seahorse RXEL-14 33hp Long Shaft
 

Lonestar66

Cadet
Joined
Jan 13, 2019
Messages
14
I'm gonna try the Tank Sealer method. ill post results of how it came out and what condition its in at the end of the season.
 

racerone

Supreme Mariner
Joined
Dec 28, 2013
Messages
38,501
Yes they are a wonderful / simple / rugged motor ( 40 hp crankshaft and rods ) and easy to maintain.----Spend the money on fuel instead of $100/ hr maintenance at a shop for newer motors.
 

oldboat1

Fleet Admiral
Joined
Apr 3, 2002
Messages
9,612
+1 ^^. (btw, Red Kote gas tank sealer can also be used for the float.)
 
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