B7100 cab heater info sought

[Dave_eng]

My friend has a1980 B7100 HST with a cab.

He would like to have some heat in the cab for snow blowing but the machine has a thermosyphon cooling system with no water pump.

I recall reading a post several years ago by a very cleaver owner who made up a system for such a tractor using an external electric pump to circulate water through the heater.

In spite of the searches I can come up with, I am unable to find the thread.

Can anyone point me in the right direction.

Thanks

Dave M7040

 

[twomany]

I can't help with the thread reference, but Bosch makes a very nice 12v circulator that is used on Audi 2.7T engines. (Allroad, A6 etc)

I added one to a vehicle that had insufficient heat in winter, and it made a HUGE difference. (Since replaced the heater core and removed the aux pump).

search "Audi Bosch water circulator" for images and links.

 

[Dave_eng]

Thanks for the Bosh info. I had no idea those cars had an electric auxiliary cooling pump and they are readily available on ebay. At first I thought they would be for vehicles like a an SUV or such with rear heating and cooling but I don't see that distinction.

Dave M7040

 

[chim]

Not an answer to your question, but thought I'd pass this along. I recently re-plumbed the heater in my homebrew cab because of a caution given by a poster on another forum. I now have copper pipe from the heater to outside the cab before changing over to heater hose. His description of what might happen to my skin when a hose carrying 200° water fails scared me into modifying it.