OMC 5.7 L V8 stalling

[leetbeef9999]

Hey,<br /><br />I have a 1986 OMC Cobra 5.7 L V8 that stalls after the engine is running hot (about an hour). This happens when shifting into neutral before docking. <br /><br />Also, I noticed that when I was in forward gear, coming into the channel at the marina, after about a full day on the water the shifter would not shift back into neutral (stuck). Any ideas?

 

[Blk-n-Blu]

Re: OMC 5.7 L V8 stalling

Lee, check out this service bulletin for OMC shifting problems 1998 and older<br /><br /> http://www.marinemechanic.com/omc/no-4170.htm

 

[Aquadzac Captain]

Re: OMC 5.7 L V8 stalling

I have an 1988 OMC 350cc with Rochester 4 bbl Carb. I also have some stalling after a few minutes ride or heated up. It smells rich and boggs down under heavy throttle. I let it sit for a 15 minutes and it runs ok then start to rough out again. I have also felt the hard shifting but can relate the stalling to it yet. Right now, after replacing all the power systems, I am moving to replace carb with and Eldbrock 600 cfm. I think I am running too rich and the floats may be sticking or a mini filter may be plugged after running, then after setting the sediment falls back down opening up the filter again. Just a guess but working on the situation. Hope you find out and post.

 

[marunr]

Re: OMC 5.7 L V8 stalling

HI,<br />If you read my post<br /> http://www.iboats.com/cgi-bin/ubb/ultimatebb.cgi?ubb=get_topic;f=24;t=007476 <br />(omc shift interrupter switch) you may find this is you're problem also. Read Steve Huminski's reply re: the bronze bushing. This may be causing your switch to hang up.