force 120 hp, carb bowel vibratied off

[tommycat]

While using my boat. I slowed down and started losing power. Pulled into the dock and I could smell gas. Took the cowling off and found the lower carb. bowel had vibrated off.<br />What has caused this?<br /><br />I put it back on fingure tight and headed back to the boat ramp, on pulling in found it off again.<br /><br />Did not feel excessive vibration while running.<br /><br />Looking for what could have caused this. Any suggestions.<br /><br />Prop shows no sign of damage. Had it redone last year,

 

[rodbolt]

Re: force 120 hp, carb bowel vibratied off

look for deformed carb body threads. look to make sure the main jet gaskets are in place.<br /> some force/chysler carbs used a gasket on both sides of the bowl.

 

[WillyBWright]

Re: force 120 hp, carb bowel vibratied off

And make sure the bowl gasket is still imbedded in the body. Finger tight isn't enough, put a wrench on it. Check for a damaged prop and/or bent propshaft. They vibrate considerably in the first place, but either of what I mentioned would contribute.

 

[12Footer]

Re: force 120 hp, carb bowel vibratied off

And run a compression test,since it vibrated-off twice. I hate to bear this bad news but there is a good chance the cylinders supplied by that carb are probably trashed by now (No fuel, no lubrication).<br />If the test comes up good, re-mount the bowl using a small dab of Locktite, or other gas-impervious thread locker.