Posted by John T on February 02, 2009 at 07:52:09 from (98.115.40.108):
In Reply to: starter solenoid posted by Paul Stephenson on February 02, 2009 at 06:59:55:
A typical what I call FORD type electrical solenoid relay/switch has 4 terminals (2 big 2 small).
(MY guess is you have a Ford type solenoid/relay that uses an I terminal that you can simply ignore n not use)
On the Ford type 4 terminal solenoid/relays:
The two big post/studs, that have big honkin cables or one side to starter, are the input from Battery and output to Starter,,,,,,,,The two small terminals are S (Solenoid) and I (Ignition). On those the metal mounting serves as the case ground return. Its the S terminal (receiving voltage from a start switch) that energizes the solenoid to latch/close n crank the starter while the other I terminal which is hot ONLY when the solenoid is energized, might be used to by pass an ignition ballast resistor.
IF YOU HAD ONLY A 3 TERMINAL (No S terminal) AND WANT TO USE THAT 4 TERMINAL, SIMPLY IGNORE THE I TERMINAL. Connect the start switch (hot when in start position) to the S terminal.....
Other possibilities could be a 4 terminal that DOES NOT have any I terminal but one of the lil terminals is the ground return versus the case/frame as in typical Ford type solenoids. It could have like an S terminal while the other is ground and NOT have any I type terminal. If thats the case wire the lil S terminal to the Start switch output and if the other is indeed a ground return terminal, it would connect to frame ground
Figure out what type solenoid you have and let us know...
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