what causes a stator to go out

[kyleriepe]

i just replaced the stator on my 150hp mercury i got the motor running agin an the brand new stator went out agin after 30mins on the water. the guy i got it from just repaced the ignition swich could it be wired incorrectly there is a whisiling noise coming from the contol box.

 

[j_martin]

Re: what causes a stator to go out

The whistling noise is the overtemp alarm. If you ignored that for 30 minutes, the stator is the least of your problems.

 

[kyleriepe]

Re: what causes a stator to go out

i have a good steady stream coming out of motor also when u turn the key to the off posioin the motor would stay running an that whisling would stop . i know i have to replace the igntion switch is it possable that there is a wire crossed shorting the stator because. i know what my alarm sounds like an that whisling is not the alarm.

 

[kyleriepe]

Re: what causes a stator to go out

they sold me the black stator an they are going to send me a new one bought new ignition try all that an hope for the best. They wont idmit that it is faulty though but yet they are sending me a new one.

 

[j_martin]

Re: what causes a stator to go out

they sold me the black stator an they are going to send me a new one bought new ignition try all that an hope for the best. They wont idmit that it is faulty though but yet they are sending me a new one.

Are you saying you replaced a 40 amp stator with a 16 amp? That would burn out in a few minutes.

They are very obviously different in winding and even weight.

 

[kyleriepe]

Re: what causes a stator to go out

no its a 16amp the 40amp has 4 yellow wires an the 16 has 2. The only thing i can think of is the ignion has wire cross sending a current back to the regulator fried it out an then the stator if thats even possiable. but if thats the case they wont up hold there warrenty on the stator. i took the ignion out and that was something eles the the guy who repaced it didnt even use the right ignion the one he use was to 1991 150hp black max.

 

[kyleriepe]

Re: what causes a stator to go out

when the trigger goes out will there be no spark, just like the stator

 

[j_martin]

Re: what causes a stator to go out

Crystal ball is failing. You haven't even told me what engine you have. Year, inline or V6, serial number.

There was a 2 wire 40 amp for a year or 2.

Mis wiring basically cancels all claims. You must get a diagram and check each wire in that case.

The main gotchas on a stator are bad rectifier, (usually takes more than a half hour) and mechanical contact with the flywheel, either loose mounting or bad top main bearing.

hope it helps
John

 

[kyleriepe]

Re: what causes a stator to go out

1979 150hp v6 mercury 5301200 thanks for the input im going to replace the trigger,stator an rectifier. Will my timming gun i use on cars work for this motor?

 

[PHE]

Re: what causes a stator to go out

Yes, the timing light for your car will work. Before you start throwing parts at it, it would be a good idea to check things out first. The rectifier can be easily checked with a digital volt meter in diode mode. It is a full diode bridge with four terminals, the fourth being ground against the block. Was the last stator damaged by the flywheel?

If you don't have a manual, you need to get one. It saves a lot of incorrect guesswork. The real manual is best, but the Clymers is much better than nothing. You need to follow the correct procedure for your motor before setting the linkages and timing. If you don't you'll be looking for a new motor soon. Getting the timing set wrong will destroy a motor fast. Not sure about this motor, but my 78 70hp requires a dial indiator on the top piston to set the timing pointer in the right place, before you set the timing. I'm glad I checked mine before setting the timing because the pointer was off several degrees when I bought the motor. Fortunately, the previous owner also set the timing wrong, but on the safe side. It just didn't run as well as it does now.