starter possibly bad????

[garnipl2]

when i went and pulled my boat out for the year and get it running i at first tried to start it after putting in the lower unit lube after i had the motor running good and everything was fine i thought the water pump may have been bad so i pulled off the lower unit and to my surprise the impeller was good so when i put it all back together and tested it the prop automatically started to spin and after about 30 seconds or so the motor cut out and i tried to restart it and nothing so i checked the fuse and sure enough it was blown so i put in a new fuse and it blew after about 30 seconds of cranking so i did it again same thing and once more, same thing so i gave up,when the starter turns over it sounds weak and then it'll pick up, slow down, pickup, and so on until it starts, i have never had this problem before until i took off the lower unit to check the water pump ever since then i have been blowing fuses so do you guys think i need a new starter, the starter has never been replaced ever and i have a '72 100 horse johnson and after awhile the starter gets really hot if you guys know where to get a rebuild kit or a rebuilt used starter for a decent price let me know if thats the problem<br /><br /> thanx for the help and please respond soon

 

[ezeke]

Re: starter possibly bad????

Mastertech Marine sells an API unit for your motor, try here and scroll down for the unit: Starters <br /><br />You can often get a starter rebuilt by a rebuild shop that does automotive starters for about 1/3 to 1/4 the price of a new one. <br /><br />Before you do anything else, make sure that your battery cables are in good condition and that the connections are clean and solid. Feel the connectors at the battery end. They may be corroded where you can't see it, but they will get hot if they aren't in good shape.<br /><br />Best of luck.

 

[garnipl2]

Re: starter possibly bad????

thanx the batt cables are in good condition and like i said it was running fine until we pulled the lower unit and then now it keeps blowing fuses any ideas??? or is it just a coincidence?

 

[Solittle]

Re: starter possibly bad????

garnipl I think ezeke has this one nailed on the starting. Bet your problem is cables or connestions.<br /><br />On the waterpump - A visual inspection does not tell the condition of the rubber in the impellor. I suggest that you change it whether you think it needs it or not. Cheap insurance.

 

[Walker]

Re: starter possibly bad????

Jump directly to your starter terminal from your battery. If you have a good battery, good clean cables and the starter still drags then you've pretty much identified the starter as bad. If the starter cranks good then your problem is in cables, battery, switch, or solenoid.

 

[E120B]

Re: starter possibly bad????

I'd Try Cleaning all the wire ends and see what it does. What is it for a motor??

 

[garnipl2]

Re: starter possibly bad????

i dont care about how fast its cranking im trying to figure out why im blowing fuses so much thanx for the help though, please tell me why im blowing fuses i cant start it unless i figure that out

 

[E120B]

Re: starter possibly bad????

Sounds like u have a pintched wire.. look over them all

 

[garnipl2]

Re: starter possibly bad????

why would it blow over a pinched wire?

 

[garnipl2]

Re: starter possibly bad????

could it be that the starters bad and its shorting out inside the starter and blowing the fuse????

 

[Walker]

Re: starter possibly bad????

Fuses blow from dead shorts and from overloads. Take your pick. You have one of those problems. I'd guess you have a hot wire shorting to ground somewhere.

 

[garnipl2]

Re: starter possibly bad????

alright now how do i go about sorting that out?

 

[Walker]

Re: starter possibly bad????

Is your motor electric shift??

 

[TLanglitz]

Re: starter possibly bad????

If the motor originally cut out because it blew a fuse, I doubt the starter caused that problem. It wouldn't have been engaged while the motor was running. Of course, something else might have caused the motor to stall, and then the fuse might have blown the second time you tried to start it. I suppose that could be the starter.<br /><br />I'd follow Walker's advice. It makes sense that a motor would be tough to start if its cranking slow. If that's the case, you'd be cranking a lot and the starter would get hot (overloads blow fuses.) If you at least solve the problem with the slow cranking, you might just find that the fuse won't blow. I also wouldn't crank the starter for 30 seconds. That alone will heat it up. If you get the motor cranking normally for 10 to 15 seconds at a time, and it isn't starting, there's got to be something else wrong.<br />Tom

 

[E120B]

Re: starter possibly bad????

Yea, His motor is

 

[garnipl2]

Re: starter possibly bad????

it is electric shift and i do crank it for 30 seconds or more only the first time it starts but i've been able to do that b4 and never any blown fuse

 

[fishn_n_tx]

Re: starter possibly bad????

On my motor (71 50hp) I found the fuse poppin problem to be one of the wires on the rectifier. It has the small round rectifier with 3 wires, the hot one is real bad about the insulation flaking off and then the hot wire ground against the metal on the rectifier. You might check and see if your wires there are still in good shape.

 

[Walker]

Re: starter possibly bad????

Okay, You say this problem started after you dropped the lower unit. Unhook the 2 shift wires to the lower unit. Make sure the ends from the motor side aren't touching anytrhing. Turn the key to on but don't hit the starter. Leave it for a couple of minutes and see if it blows the fuse. If the fuse is still good then hook the water muffs up and try to start the motor. <BE AWARE, THE MOTOR WILL BE IN GEAR> so keep clear of the prop. If everything works okay then your problem is in the wires to the lower unit. One of them is grounding to the motor somewhere.

 

[garnipl2]

Re: starter possibly bad????

will the fuse blow if i start the motor in gear?

 

[Walker]

Re: starter possibly bad????

If you do what I said and the fuse blows then your lower unit has nothing to do with it. We will have to look elsewhere in the wiring system. The motor will be in gear because you lower unit automatically goes into forward when you unhook the 2 wires. Won't hurt a thing if you are careful around the prop.