Does anyone know what the thread size and pitch are for the Oil Sender (how close to 1/8 NPT) and for the plug on the top of the oil filter?

Also on the oil filter, does the oil come directly from the pump to the filter or does it go to the cooler first?

Thanks Jim

 

Top of the filter is 1/8 pipe no problem.

 

Both are 1/8 NPT.

I'm not sure on the cooler, hopefully someone else knows.

 

I hope its ok to post this.









HTH

 

Thanks, that is what I wanted to know what the path was.

On the thread size and pitch, are they not metric because all of the threaded fasteners seem to be.

I tried to screw a spare oil sender into a 1/8 NPT tee and it almost bottoms out in it and I do not think it would make a good seal.

I could use TFE or Teflon Tape but then there would be no conductivity to the ground.

About what year did the Cummins engine switch from an SAE thread to metric?

Would our engines benefit from an accumulator on the oil line to the turbo to provide the turbo with an oil supply after the engine shuts down so it does not coke the bearings?

http://www.accusump.com/acc_products/acc_turboiler.htm

I always wonder how much oil is in the top end and cylinders at start-up especially since mine usually fires within the first revolution.

I was thinking about an accumulator that holds about 2-3 quarts of oil and install a solenoid valve, with a check valve it would charge up to the highest pressure once it is running and retain that pressure, then before you start the engine you could press the button to release the 2-3 quarts of pressurized oil into the engine to avoid a dry start.
I used to use something like this on my Boss Mustang in the 70’s except I used military surplus hydraulic parts off from aircraft.
Just an idea.

Also could out engine safely hold 3 additional quarts in the pan briefly until the accumulator is recharged?

http://www.speedwaymotors.com/p/577,...cumulator.html
http://www.accusump.com/

Thanks.
Jim

 

Yes. It's not gonna matter if the crank gets in the oil for a few seconds after startup.

 

Thanks, Dave
I was worried because when I screwed the sender into the Tee the threads were bottomed out and it looked like it was going to leak and I am not one of the guys that crank things into a threaded hole till it snaps off then spends the next few hours getting it out.

Since I do not have an oil bypass filter can I use the tap on the top of the filter base to pick off the pressure? It is only for a Hobbs switch.

Also I am going through all of my wiring diagrams but I cannot see where,

The blue wire for the fuel shutoff solenoid, what harness does it enter the cab and does it terminate at the fuse panel or does it go the Ignition switch. And does that lead control anything else like the KSB switch?

I am probably looking right at it but I have had a migraine that has lasted almost 3 weeks now.
Thanks
Jim

 

The blue wire goes to splice J2 (physically tucked in next to the engine way above the starter). There are 6 wires coming off that splice that run everything under the hood that turns on with the key. The feed comes off the ignition switch, it comest through the main bulkhead connector.