Overheat adventure on 1985 Universal M12

[jssailem]

Put Teflon tape on the thread I imagine.

No. Most temp sensor’s are electrically grounded by being threaded into the engine block. The Teflon tape will insulate the sensor and you’ll wonder why it is not working.

The threads are NPT and generally produce a sealed attachment.

 

[odaydokay]

Boy oh boy does that ever make sense. Many thanks.

 

[eherlihy]

better source than Depco is Pumpsandpartsonline.com - Cardinal Pump

 

[odaydokay]

Thanks for that info. Do they rebuild as well?

 

[eherlihy]

Thanks for that info. Do they rebuild as well?

I wasn't aware that Depco would rebuild a pump for you. Cardinal pump sells the kits. See Rubber Impeller Pumps

 

[JoeWhite]

I can easily say that I am an expert when it comes to rebuilding the oberdorfer raw water pump.
Visit here

Oberdorfer Seals Replacement | Sail La Vie

mei1970.org

And view both album Images to get an idea of how to rebuild. I used steering wheel puller to remove and reinsert the seals.
Later I discovered identical seals for about $14.00 each that was encased in neoprene. It could be inserted with just a finger. I had my doubts that it would last very long. It has now been 42 hours with no leaks. To rebuild, you only need to replace the 2 seals when they start to leak.
PM me if you need more info.