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Oil pressure sender source for Imp

BoyToys

BoyToys

Active member
Super Patron
I'm compiling quite a list of part numbers specific to the Ford V4 engines in Imps, but stumped on one.
Does anyone know a part number or source for the oil pressure sender that activates my Actron oil pressure gauge? My gauge reads zip. Pulled the wire at the sender, grounded it, and the gauge pegs (well, almost at 90 psi) so I figure the gauge is OK.
Pulled the sender (sandwiched behind the mechanical fuel pump). Reads about 70 ohms on the bench and I can get it to drop to 50 ohms just by putting lung pressure blowing into the pin hole port. Sprayed some brakeclean into the hole - what little I could force in there - shook out some goo, and now can see some action on the gauge but no more than maybe 10 psi with engine running.
Hopefully a new sender will rectify...and hopefully I don't truly have low pressure indicative of nasty things like crapped out crank bearings and such. Not more than a couple run hours on brand new oil.
 
BoyToys said:
I'm compiling quite a list of part numbers specific to the Ford V4 engines in Imps, but stumped on one.
Does anyone know a part number or source for the oil pressure sender that activates my Actron oil pressure gauge? My gauge reads zip. Pulled the wire at the sender, grounded it, and the gauge pegs (well, almost at 90 psi) so I figure the gauge is OK.
Pulled the sender (sandwiched behind the mechanical fuel pump). Reads about 70 ohms on the bench and I can get it to drop to 50 ohms just by putting lung pressure blowing into the pin hole port. Sprayed some brakeclean into the hole - what little I could force in there - shook out some goo, and now can see some action on the gauge but no more than maybe 10 psi with engine running.
Hopefully a new sender will rectify...and hopefully I don't truly have low pressure indicative of nasty things like crapped out crank bearings and such. Not more than a couple run hours on brand new oil.
Click to expand...
UPDATE: Said screw it, bought a AutoMeter brand 12V oil guage with sender. Just had to tap in to the switched 12v at the key, and re-plumbed the sender location a bit to make it more accessible. All is good now. If you've ever messed with yours you'll find the sensor tucked behind the fuel pump and almost impossible to remove without first removing the pump.
 
BoyToys said:
UPDATE: Said screw it, bought a AutoMeter brand 12V oil guage with sender. Just had to tap in to the switched 12v at the key, and re-plumbed the sender location a bit to make it more accessible. All is good now. If you've ever messed with yours you'll find the sensor tucked behind the fuel pump and almost impossible to remove without first removing the pump.
Click to expand...
Nice! Did you plumb a tee in line for an idiot light as well? I plan on doing that at some point just for added security. I know it’s not needed and I do scan gauges constantly. Seeing the sudden red light illuminate may be a good thing.
 
Idaho IMP said:
Nice! Did you plumb a tee in line for an idiot light as well? I plan on doing that at some point just for added security. I know it’s not needed and I do scan gauges constantly. Seeing the sudden red light illuminate may be a good thing.
Click to expand...
No idiot lights on 1404's, at least not on my '77. Does yours have one? Guess I'll pull out the wiring schematic for a look-see.
I'm sleeping better at night now, knowing that I have oil pressure (50 psi cold).
All that's left to do now gauge-wise is a new tach since the original is fubar. All my vehicles have tachs...can't live without one.
 
Look for a n cell hanging out the back of it.

Some of my early thiokols had a simple cell to excite the speed sensor. When the battery dies (usually 20 years or so) the tach stops.

I think bt was inquiring about adding a light.

Some of my tuckers pass the ignition power through a murphy box (glorified time delay to allow cranking starting then power comes from a normally open contact, held closed by a pressure swt)
Its elegance is the engine quits if the oil pressure is lost. Its opportunity for growth is knuckleheads not reading the dash plaques or manual. They hear the buzzer. (Annoys them) they unplug it, then have no spark. Buy endless piles of pertronix, and ignition bandaids. Only to rewire things direct..... you get where im going.....

I did lose a 1/16th copper line on my 1404 and i noticed the brown snow in my rearview mirror as i was grooming. And yeah. The gauge was fluctuating a light might have been better.
A brick to the head is best
 
Lucky for me I'm an anal gauge watcher. An idiot light would be a nice add-on in case I get distracted by doing something stupid like dropping my beer. As far as my tach goes...well, pretty corroded toasted internals so I guess it's time for a new one. My analness cannot live without a tach.
 
"An idiot light would be a nice add-on in case I get distracted"

I have both (gauge, idiot light) in the Trac. I think though, that the solution I added to my JD tractor might be worth considering: When running the backhoe, I can't easily see the gauges, and constantly turning around is a pain in the neck (literally) so I wired in a buzzer to get my attention. I've been considering a "master warning light" in the trac that sets off the buzzer that says look for the gauge that is out of spec. I've used a lot of "murphy gauges" that have built in alarm points, I think I can fabricate the contact myself. another overbuild idea from the engineering department.
 
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