Ford 460.
I have the 4 pronged relay with battery hooked up on the primary post Right side next to the secondary post marked I. The secondary post marked I does not get any thing hooked up to it. The other primary post on the Left next to the secondary post marked S has the starter hooked up to it. The secondary post marked S gets 12V from the ignition switch when you turn the key.
When I turn the key and give the S post 12 volts it doesn't complete the circut. By that I mean the left side primary post remains at zero volts.
Any ideas ? Is there a marine relay ? I don't think there is a difference even tho on a truck this device is screwed into the fender well.
This is a new relay, and I went back to the shop and got a different one but still no luck !
6 hours in the fn driveway not in the water !

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