Jumping Solenoid

[ross_larter]

On my 1991 Inmar 5.7 v8 direct drive, the starter solenoid has 2 big nuts and 2 small nuts, if I want to jump the solenoid when doing some fault finding on the starter/solenoid which nuts to I jump between to bypass the solenoid.<br /><br />Cheers<br />Ross

 

[Boatin Bob]

Re: Jumping Solenoid

You would go across the 2 big nuts to bypass the solenoid however beaware and use caution as this will cause a spark which is not advisable down in the bilge.

 

[ross_larter]

Re: Jumping Solenoid

Thanks bob, the engine is centre mounted in the boat (only 20ft) with a clam shell type cover so when the cover is open the whole engine is in the fresh air.<br /><br />Cheers<br />Ross

 

[jeff13601]

Re: Jumping Solenoid

You do want to be careful. I had a friend do that last week with a screwdriver and the screwdriver touched his ring while he did this and burned his finger badley

 

[elpaso]

Re: Jumping Solenoid

If you want to jump the starter on a GM engine -<br />use the small nut to right of battery cable<br />lug. Wire should be colored yellow with red<br />tracer - it comes from ignition switch.

 

[Bondo]

Re: Jumping Solenoid

Actually,.......... Jumping across the 2 Big Lugs will in fact By-pass the Solenoid,+ Energize the Starter Motor,............<br />But,......<br /><br />The Bendix Drive will not be Engaged,+ Only the Starter Motor will Spin,..... Not the Engine...........<br /><br />Jumping from the Battery Wire Lug(the Top 1),.. Over to the Smaller Wire located Nearest the Engine Block, While Not actually totally by-passing the Solenoid, Is the Accepted Way of Shorting the Starter, to turn over the Engine...... This actually just by-passes the Start Wiring, from the battery, to the key,+ the return to the Solenoid Excite Wire Lug on the Starter............<br />

if I want to jump the solenoid when doing some fault finding on the starter/solenoid which nuts to I jump between to bypass the solenoid.<br />

The 1st thing to do for your " some fault finding " is to Remove,+ Sand the connections,+ Reinstall ALL of the Wires,........ Battery Terminals,..... Ground Wires,...... Starter Connections,.......<br /><br />You Might be able to repair your boat for the price of a little Sweat,... Instead of Money...... <br /><br />And,..... As stated above,.... Be Careful around Any Wires that can Pass High Ampereage.........<br />The Shock won't hurt you,... But Any Metal Shorting it Out, Will Burn you Real Bad..........