New Carb new problem-Kill engine to shift!

[AltonR]

My 85 Cobalt with Chevy 5.7 with OMC 800 outdrive and a spanking new Eldebrock Carb that replaces the old flooding spread bore Quadrajet. Boat runs much better but when in the water will not shift out of gear unless I kill the engine. Kicker is it works fine when connected to the water hose. As soon as it goes in the lake it locks in gear until I kill the engine. It goes into gear fine problem is trying to shift out or gear with engine running. Has anyone experienced this problem? HELP!

 

[Don S]

Re: New Carb new problem-Kill engine to shift!

What is it besides Chevy?? OMC, Mercruiser, Volvo ???? What outdrive?

 

[gadget73]

Re: New Carb new problem-Kill engine to shift!

What he said. Some drives have a shift interruptor switch that stalls the engine for a moment while shifting gears. High idle will also cause this problem, you should be around 700 rpm. If the idle is high, and/or the interruptor is not working then it causes this.


Also, just to harp on the safety bandwagon, is this a marine carb or an automotive one? the fuel bowl vent setup is somewhat different. There is a carb thats 95% identical to the Edelbrock that came factory on later MerCruisers. Its a Weber carb (Weber actually makes that Edelbrock carb, look for the W cast onto the side) but its set up as a marine unit with the correct vents and the connection down to the fuel pump.

 

[AltonR]

Re: New Carb new problem-Kill engine to shift!

Any idea why it only hangs up when it's in the water and not while it's on the hose? Rich