merc 2.4 efi engine trouble

[leds]

ive been having trouble with my 1990 merc 2.4 efi, once its started on the trailer it runs fine and revs sweet in neutral but when i put it in gear an put the foot down ive got no response and it keeps cutting out,when i last took it out i managed to get out the harbour and it suddenly sprung into life and i was racing around for about 20 mins with no problems,then when i slowed down and came in the harbour i had no throttle again and it kept cutting out again any ideas?cheers

[boatnut]

Originally Posted by leds

ive been having trouble with my 1990 merc 2.4 efi, once its started on the trailer it runs fine and revs sweet in neutral but when i put it in gear an put the foot down ive got no response and it keeps cutting out,when i last took it out i managed to get out the harbour and it suddenly sprung into life and i was racing around for about 20 mins with no problems,then when i slowed down and came in the harbour i had no throttle again and it kept cutting out again any ideas?cheers

i had simmillar problems with mine last year could it be fuel pump, or breather pipe issues, good luck

[leds]

Originally Posted by boatnut

i had simmillar problems with mine last year could it be fuel pump, or breather pipe issues, good luck

im using an original merc fuel pump and the pressure is 40 psi i do have some doubts about it though as its quite noisy

[Tom Stone]

i've just spent alot of time sorting out my fuel system after burning out a pump. the pump is noisy due to aeroate fuel in the input side, best to go through and check for air leaks, i found mine to be at the top of the pick up inside the tank.

however, mine did a similar thing to yours and it turned out to be the stator. reved fine in neutral but broke down under load and got worse over time.

[martynwilley]

sounds like switchboards or stator mate, if u want i have good working spare stator an switchboards u can try.

gimme a shout if u need anythin

martyn

[the rat]

Originally Posted by martynwilley

sounds like switchboards or stator mate, if u want i have good working spare stator an switchboards u can try.

gimme a shout if u need anythin

martyn

if the stators gone it wont plane as itl shut down one side of the motor, happened to me last year and wont come back on at all until replaced

[Jay Smith]

Also look for water in the tank.. Water is heavier than fuel and will roll around like a ball at the bottom of the tank until it get near the pick up tube to the suction side of the pump then the pump sucks up a load and the motor starts to see a lackluster performance..

Just a thought,
Jay @ JSRE

[Pro Dutch]

i had the same isues.
stator failure