496 Mercruiser ignition power

[Radek Kobliha]

Hey guys, we just replaced the heads, basically took electric harness off and we put everything back together..now, I am not getting any power for ignition switch.. normally I have to turn the key on and ignition switch as well, there is a long beep and it's ready for start..(there should be a power (beep sound) even if the transmission is on the gear)..so far I know I have power on the starter wire and I also checked all the 20A fuses.. didn't have a chance to check voltage on the solenoid yet..I heard about some "alive wire" what we maybe missed and it's not plugged in..any idea what else to check? Solenoid for sure.. thank you!

 

[scoflaw]

Must be in one of the connections if all worked prior.

 

[Radek Kobliha]

Must be in one of the connections if all worked prior.

Question where

 

[Radek Kobliha]

Guys do you know what kind of solenoids I gonna need? I know one is located by the starter and second one behind the 50A breaker correct? Thank you!

 

[scoflaw]

Wake up wire is purple. Check your cannon plug

 

[Radek Kobliha]

Wake up wire is purple. Check your cannon plug

Thank you

 

[Korkie]

Also check the connections to the 4 relays on top of motor. One does the fuel pump for sure, and I think one of the others control the power to the coils. Not sure if this could be it, but worth a check. I believe they are all the same relay so interchangable. Maybe just not plugged in tight.

 

[Radek Kobliha]

Also check the connections to the 4 relays on top of motor. One does the fuel pump for sure, and I think one of the others control the power to the coils. Not sure if this could be it, but worth a check. I believe they are all the same relay so interchangable. Maybe just not plugged in tight.

Thank you man, good point.

 

[Radek Kobliha]

Update..

Problem solved by replacing the 90A fuse next to the starter..

Thank you everyone.