Weird electrical problem
 

I just this week replaced two engines for a friend in his four winns. it has 2 350's with volvo outdrives. the engines were salt water with no proper flushing done. it is a 2000. anyways i installed the engines. and hooked everything up. I cant get either to crank. i have power to both starters. the court lights are on dim the switch is not on. the blower switch lamp is on and the switch is not on. it seems like the thing is trying to find a ground. what did i do?

Ok.....????? mmmmhhhhh.


The ground from the batt. goes to where ??

Yup what he said...most "weird" problems turn out to be ground issues, battery(s) should go to engines, a second ground strap should go from one engine to the other.

battery 1 ground to engine star.. battery 2 ground to engine star. ground between port and star.

[QUOTE=Fixxxer22;2897931]battery 1 ground to engine star.. battery 2 ground to engine star. ground between port and star.[/QUOT

Ok???? where on the engine ??

You can put the ground to ANY good CLEAN ground lug. There should not be any paint or rust in that area or you will have a bad ground.

Jon

Put the shifter in neutral !!!!

not being a smartass,,,, done that after engine replacement.

and to add insult to injury,,,, im out there with a meter and schematic,,,,, wife walks out,,,,, hey,,,, doesnt that lever thingy have to be straight up !!!!!???

GO AWAY WOMAN !!!!!!

tunnel vision sucks !!!!

KISS ( keep it simple stupid )

starting system is very simple,,,, trace power from starte solonid back to the keyswitch,,,, if you have it,,, like they said,,,, you missed a ground somewhere,,,,, whenever I pull a motor,,,,, I take all the grounds and tie them together with a small zip tie,,,, this way when your laying in there setting the motor in your not hunting for them

that is the problem. the boat used to be in salt water and it took on water once. everything is a rusty mess. the ground studs are rusty. Should i just re-locate to the heads? with new clean bolts?

i have a 9.8 volt voltage drop from battery negative to engine.

Jump the starter solenoid to the main +12v going to the starter to see if it cranks that way.

Had an old boat that we had to do that to start it, out running around and the damn starter wire broke. Nothing like laying on a hot exhaust manifold trying to hotwire the damn thing :rolleyes:

Yes u could do that.

dont mean to be a di@k,,,, but if you just had both motors out and replaced,,,, shouldnt all of that be new, and or cleaned while apart !!!!!!!???????

no no no, you are not being a dick. The engines were both removed by a local marina. the usual chop and hack. I am a Auto tech and he dropped off two bad complete assys. and two new longblocks. I just transfered everything... Did not know those were the grounding studs. and they look like crap. and i have replaced two ground leads they were so corroded. it partially sunk in florida. even the pans rusted through.

If thats the case u need to replace the whole wiring in that boat !!!!!!!!!

The salt eats thru the coper wires faster then u could replace them.
Been there.:eek:

last night wile installing stereo in boat with amp hooked to battery 2, no battery in one, I tried to raise trim tabs, they would not move but light on bilg and blower switch would come on, installed battery 1 and everything worked fine, I dont know what this means but I thought it was strange.

Last week had 2 motors on another boat that would not start 2 minutes after shutting off (yamaha 2 cycle boat). cleaned plugs, nothing, replaced plugs, nothing, then 2 hours later I found out there was no spark to either engine, turned out to be the lanyard, it was not pulled out but just enough to keep engine from firing

Ok, it was kinda bad ground... but now on the port engine everything is great. it turns on and cranks with the key and the fuel pump cycles and the alarm beeps once quick. the starboard will crank but there is no power to the fuel pump. but get this... the round connectors to each engine main harness. if i switch the port harness to starboard and the starboard to port the port still works perfectly. the pump will run and the alarm beeps. the starboard still does not. what could cause this? i swapped PCMs from engine to engine and no change. i checked everything. everything is hooked up and all my grounds are new and great. all of the power leads are new too. all re-located to the heads. (not the power leads) anyone know what im missing? Volvo poop!

Since you swapped harnes plugs from side to side and they problem did not fallow then you are looking at the wiring in the motor. If the boat went for a salt water swim then I would look VERY close at all the wire ends. They can look fine but not pass any voltage or current. My guess is you are still missing a ground some place or a wire is broken internally. Unfortunatly it is just testing wire to wire tell you find the problem. This is were a manual with a wire diagram would be invaliable.