Avoid destroying charging system

[G DANE]

I read in another post that disconnecting charging system on a motor running may damage the components.<br /><br />My question is : Is it possible to start a motor on a stand,on muffs, by jumping starter connections, without damaging any charging system, rectifier, regulator etc.<br /><br />Or can you start it on boat, with big red connector unattached ?

 

[12Footer]

Re: Avoid destroying charging system

By jumping, you mean, the solenoid with a screwdriver? Sure no harm done there.<br />It's just the output from the rectifier must be hooked to the battery. It doesn't happen right away in most cases,but it is definately hard on the regulator/rectifier/ and HVCD ignitions.<br />But just jumping the solenoid wont harm it at all.<br />As long as the battery is hooked up to the engine while it runs.

 

[G DANE]

Re: Avoid destroying charging system

Thanks 12 footer<br /><br />But if you start by using automotive jump start wires on solenoid and block terminals will the cahrging current go to the battery ?

 

[12Footer]

Re: Avoid destroying charging system

That depends on how you have it hooked-up. If it doesn't bypass the battery while running.<br />IOW, if you start it, then remove the battery, it could damage the components. But if the only thing done was to short-accross the start lugs on the solenoid (to keep from walking up to the helm and starting it), with the battery still hooked-up, you are fine.<br />The thing is, the current must have a place to go.<br />In most cases, the damage isn't immediate, and can take some time before damage occurs. But on very rare occasions, it's 'right now' damaged.<br />With the battery hooked-up, engine running, check the voltage. It should climb from 12 to 14VDC after you start it. If it runs, and the voltage gradually goes up, you have no damage.

 

[G DANE]

Re: Avoid destroying charging system

Thanks 12footer<br /><br />I didnt pull the battery connection, just did not have the big red plug connected to boat, I cut the pliers from 2 automotive jump start cables and soldered terminals to the end and screwed them on motor, exactly like the battery cabled.<br /><br />What I wanted to know was if charging current goes through these two connections too. By the way I had problems getting this thing shut off, but luckeyli the vro had fed a lot of oil to carb bowls, so it smoked a lot and died after some time !!! Hard to start too, had to squirt fuel into silencer box.