Engine Dies

After 15-20 minutes of running around the lake the motor cuts out, hesitates, and dies. I fire it up later at home, runs fine on all six. Switch boxes and trigger replaced a year ago. Last night I took off what I think was an over rev limiter mounted on starboard top side engine block, it hits on all six and sounds good. It"s a 1990 2.4 liter Bridgeport with no modifications.

 

Jon, 

I'll try this in two stages. One if you have an EFI and the other if it's a carb. The EFI's sometimes can have an ECU that will quit after so much time. Kind of like it has a mind of it's own. The Stator can do this but most of the time when they die , they stay dead. The fuel pump could be getting tired or the filter is restricting fuel. If the fuel pressure is not right on an EFI the motor can die. 

Carb motors are more simple. Since you replaced the trigger and switch boxes, I'd lean toward the stator. The odds of all six needle seats in the carbs malfunctioning is slim. One last thing to look for is the electric harness. A friend of mine would have his come unplugged every time he'd turn sharp right. Straighten it out and it ran. 

                                               Hope you find the problem.
                                                              Randy

 

 

Please submit whatever questions you have to IHRTechTalk@yahoo.com.  All questions and answers selected will be displayed on this page as they come in.  Note: though all boaters are welcome, priority may be given to I.H.R. members.  Randy can not be held responsible for any advice given.  Though his information and expertise is second to none, he has no control over what you do with your boat.  It is up to you to boat safely and act responsibly, and his advice is only to be used as a guidance for your high performance boat/motor of which you are the one responsible for the risks involved.

Thanks,
Mark C.

 

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