Oil temperature sensor size

[TShively]

Looking to plug port on engine oil cooler on the radiator. Anyone know the size/thread pitch? Does not appear to be 1/8” NPT. Any info is greatly appreciated...thanks

 

[Barrman]

I think I know what you are asking for. Post #260 in this thread is I think the answer:

https://www.steelsoldiers.com/showthread.php?74514-M1007-CUCV-Suburban-Clone-Build-Thread/page7

 

[TShively]

Thanks, Yeah the port I’m working with is on the passenger side of the radiator (the engine oil cooler), pretty sure it’s where the engine oil temperature sensor once lived.

 

[cucvrus]

No that port is the port for the low coolant sensor. The CUCV never had an oil temperature sensor. Just an idiot light and that pulled the signal from the left rear of the engine block tight up against the firewall. Drivers side left. Good Luck.

 

[Barrman]

I did misunderstand. You just want to plug the sensor hole in the radiator? Just buy a 1985 K30 6.2 coolant level sensor and be done. They are cheap.

If you want to have an engine oil temperature gauge. The best place to put the sensor is on the side of the block above the oil cooler ports above the oil filter.

 

[TShively]

Very well, if it’s just coolant I will put a heater hose delete cap over it. Thanks for the help

 

[cucvrus]

Heater hose delete cap? How do you put a heater hose delete cap into a female hole in the radiator. The 3/4" nipple sticking out of the radiator is for a 3/4" pice of rubber heater hose and runs to the heater core on the right side of the firewall. Do you have any pictures so we can all get on the same page?

 

[nyoffroad]

Very well, if it’s just coolant I will put a heater hose delete cap over it. Thanks for the help

I don't think I'd do that! To much chance that it would blow off or spring a leak and being that low on the tank you'd be out of coolant real quick, best to plug it with a plug or the sending unit that should be there and should work.