Internal carb repair - What bonding agent to use (2000 5hp)

[wineyarders]

Hi, I have a 2000 Suzuki 5hp that needed a carb overhaul. Unfortunately I broke one of the aluminum arms that supports the float hinge pin. I have the part and could reattach it easily if there is a bonding agent that will resist having the exposure to the fuel. Can anyone refer me to a material that will bond the aluminum while holding up to the fuel exposure? I have jb weld on there now but don't have a whole lot of confidence it is a long term solution. Also, a new carb is about $150 so not a huge expense, but one I'd like to avoid if there's a solid alternative. Thanks for any advice.

Ryan

 

[robert graham]

Re: Internal carb repair - What bonding agent to use (2000 5hp)

That's a good question, not sure if JB Weld will hold up to gasoline inside carb, but I have used it to seal outside fittings on fiberglass fuel tank on rail buggy. Maybe that small aluminum piece could be brazed on....take carb and piece to local jewelry store and get his opinion on how he might repair it, since they do a lot of fine brazing and bonding on jewelry?...Just an idea. There may be some type of fuel resistant epoxy that's better than JB Weld? Good Luck!

 

[99yam40]

Re: Internal carb repair - What bonding agent to use (2000 5hp)

buy the new carb and stop wasting your time

 

[robert graham]

Re: Internal carb repair - What bonding agent to use (2000 5hp)

buy the new carb and stop wasting your time

Maybe Ryan would not feel it a waste of time to explore and consider other repair alternatives, before spending $150 for new carb?

 

[99yam40]

Re: Internal carb repair - What bonding agent to use (2000 5hp)

Yea, but you know the probability of it failing and causing a bad day out on the water.
Most things tend to fail at the wrong time and spoil a good day,
seems never to fail at the bank when it would not matter

 

[robert graham]

Re: Internal carb repair - What bonding agent to use (2000 5hp)

The float hinge pin support arm on a 5HP motor probably not a high stress area, and just maybe a handy fellow with a brazing rod can repair it to stay. If Ryan was crossing the Atlantic Ocean with this motor, then I'd say go for the new carb, but just for local casual boating, maybe a good fix would suffice? Please, Ryan, let us know how it goes!

 

[wineyarders]

Re: Internal carb repair - What bonding agent to use (2000 5hp)

Thanks for the replies, and for the suggestions Robert. I'll look into fine scale brazing, that's a good idea. I was just looking for an epoxy meant for fuel exposure. Thanks again for the replies, I 'll let you know what I turn up to close the loop,

Ryan

 

[BonairII]

Re: Internal carb repair - What bonding agent to use (2000 5hp)

I'd be worried that whatever bonding agent you use could possibly come apart.....clog the carb......run the motor lean.....and ruin it.

 

[wineyarders]

Re: Internal carb repair - What bonding agent to use (2000 5hp)

I have a couple johnnyrude engines and thought I'd see what those folks have to say.

http://forums.iboats.com/showthread.php?t=556282&p=3819104#post3819104

 

[robert graham]

Re: Internal carb repair - What bonding agent to use (2000 5hp)

Sounds like your johnnyrude friends like the JB Weld/Epoxy fix...on a very low stress area like your application, it should work fine. If it breaks, the float comes loose and your carb runs very rich for a few minutes....no lean condition that might endanger your motor.

 

[wineyarders]

Re: Internal carb repair - What bonding agent to use (2000 5hp)

So I checked the JB weld that I had put on there about a week ago and it was already peeling and very soft. I called marine tex and they said the gas will deteriorate any epoxy over time. New carb is on the way. I think the only viable solution would be a welded or braze bond, or a new carb. Anyway, thanks for the replies and advice.

 

[99yam40]

Re: Internal carb repair - What bonding agent to use (2000 5hp)

Always best to do it right the fist time or at least the last time
Saves time and money in the long run