Oil Pressure safety switch & sender

eticket · #1 07-19-2010, 04:26 AM

I was going over my electric fuel pump instructions (yes actually reading them, not looking at the pictures

) and they were going over installing a safety switch to go into the oil pressure hole to read the pressure and if it drops to a low value, it turns off the pump, to kill the engine.
Cool sounds good, so off I am searching for one, and I find them, but here is where I need y'alls help, I have a limited amount of space where the sender sits, and from I have seen on the web, you need to install a tee to install both the safety switch, and the sender. Soooo has anyone seen a safety switch and sender all in one out there?

thanks,
Mike

TooMany2count · #2 07-19-2010, 07:40 AM

No dual switch that I have seen, but if you're running a chevy motor the sending unit is behind the dist. & the low oil pressure cut off switch is screwed in just above the oil filter. There is a pipe plug in it IF there is no low oil pressure cut off switch in the block...joe

cffisher · #3 07-19-2010, 07:42 AM

In a word NO but if your straped for room mount them remote on firewall with tubing from engine to tee.

eticket · #4 07-19-2010, 08:07 AM

no chevy, its an ol' school 392 hemi. Right now the sender sits low below the dist, and everything is real clean on the firewall, we are trying to keep as much off the firewall as possible, and the amount of exposed wiring to a mininum. No we are not building a GNRS car, but a driver like the most of y'all, just trying to make it as clean as possible.

But I do like the idea, of maybe mounting a line down the backside of the engine, and mounting the sending unit, and switch on the frame rail under the body. hmmmmm

Thanks,
Mike

robot · #5 07-19-2010, 08:11 AM

96 thru 2000 vortec 350 engines (Chevy truck) has a oil pressure sender/switch (two circuits) that can be used. As I remember, the sender does not have enough current capacity to run the fuel pump draw thru but it can be used as the control for a relay.
It has a pipe thread, just as all SBC engines.

HWORRELL · #6 07-20-2010, 11:26 AM

Quote:

Originally Posted by robot

96 thru 2000 vortec 350 engines (Chevy truck) has a oil pressure sender/switch (two circuits) that can be used. As I remember, the sender does not have enough current capacity to run the fuel pump draw thru but it can be used as the control for a relay.
It has a pipe thread, just as all SBC engines.

I was thinkin the same thing,and every vehicle made since 1985 ? or every thing with an in tank fuel pump runs a similar switch. But finding one that has the right resistance to operate his oil gauge is another thing. On a carbed vehicle I'd be more inclined to use a Ford inertia switch.