Oil sending unit and -----?
 

Who can I email a pic to post it for me? I have the sending unit and what looks to be a switch of some sorts? Just would like to know what it is, I'm changing from small blocks to big blocks and have to swap the harness

[email protected]

Just put OSO Boat Pics in the subject line. Ive got a special folder on my photobucket just for hosting photos for folks on this site, haha.

Looks like a switch for an idiot light.

Hummm I guess that could be. No light on the dash but someone could have removed it

Sometimes they're used to shut off an electric fuel pump at 0 oil pressure, as in the motor is not running.

Pretty sure that's a safety switch for the electric fuel pump next to the coil. Crusader engine?

i think that switch is being used for two things.1-worning system for low oil pressure.2-ground for fuel pump,shuts fump off if no oil pressure.

Carbureted motors mechanical fuel pump. That's whats throwing me off.
No idiot light on the dash didn't what else it could be

Time to start tracing wires!

or

Fire it up...unhook it...see what happens...report back

=D