Farmall 656 D Oil Pressure Sending Unit

Gents:

I have been trying to run down a couple of issues on my Farmall 656 D. I lubed and adjusted the shifter - what a difference, particularly after I figured out that a previous owner had removed the spring, ball bearing detent mechanism. No wonder it was always hard to find gears.

I also replaced the fuel gauge/temp cluster.

The wiring is a mess - old and frayed with lots of splices. It has gotten bad enough that the voltage drop between positive lead to the push to start switch, through the safety switch to the starter drops to around 8 volts and the starter drags.

Couple of questions:

1. I am not finding the oil pressure sending unit on the motor or the manual. Where is it?

2. How is the quality of the new wiring harnesses from Case/IH? I replaced one on a Ford 860 with a new, Tisco harness and it was junk.

3. I bought a block heater that is to be installed in a welch plug/freeze plug. The plugs on the 282 are different that what I am used to seeing - cups, rather than domes. Is the correct or does this heater more properly belong in one of the same tapped/plugged holes that are used for the water temp gauge probe?

Thanks for you help.

1. left side of block right in front of the breather tube about 1 inch above the frame rail.

2. can't help you on this. I make my own wireing harnesses.

3. cup plugs are correct. you want the heater as low in the block as possible. heat will rise to the cylinder head. good luck on getting one of those threaded plugs out.

Just what the doctor ordered.

Thank you!

its been some years now but i got all the wiring harness for an 856 from case ih they were very nice and fit well. this was at leaxt 5 years ago not more than 8 yrs ago good then but who know now since everything seems to get built cheaper and cost more or just discontinued and no longer available. another option would be Agri Services in new york jim does a very nice job making them to order i got one for the restoration of my 660 a year ago last winter. he was a little spendy but the quality was great made to order so its not fast as he alwasy seems busy. also when you call be prepared to answer queations he wants to make sure it get made right to fit as compents move over the years of production.

I replaced the wiring harness on an 856 two years ago. I priced all the harness makers and found genuine IH was as cheap or cheaper than the aftermarket ones. The harness was great quality. What a joy putting the electronics back together with new soft supple wire and all new connectors on the ends. It was hard to spend $500 on new wiring, but after the fact, was money well spent.