Volvo Penta 5-7 Gi-G engine cranks but won't start

[Bill Ho]

Hi I have a 2007 Monterey 220ex with a Volvo Penta 5-7 Gi-G engine. The last two time I have had my boat out, it's at idle in gear engine dies and cranks but will not start. I keep trying to get it started, after about one hour it starts. I load it and go home .It sucks this boat only has 50 hrs on it. Can anyone help me with this problem. THANKS

 

[Don S]

Re: Volvo Penta 5-7 Gi-G engine cranks but won't start

Have a look at this thread, http://forums.iboats.com/mercruiser...uiser-4-3mpi-hard-start-when-warm-611213.html about vapor lock.

 

[wpowell323]

Re: Volvo Penta 5-7 Gi-G engine cranks but won't start

Have a look at this thread, http://forums.iboats.com/mercruiser...uiser-4-3mpi-hard-start-when-warm-611213.html about vapor lock.

I appreciate the link, but it is not vapor lock. It happens dead cold when the motor has not been cranked since the day before. the injector voltage is less than 1 volt, which allow the injectors to drip and flood the motor. when the motor happens to run correctly the injector voltage jumps back up to around 4.8 volts.

 

[dypcdiver]

Re: Volvo Penta 5-7 Gi-G engine cranks but won't start

Remove all the connections to the ECU and also the round plug that goes to the box on the stbd riser, spray them with contact cleaner and reassemble and try again.