Heat in a BX25 Radiator air flow

[53woodsman]

Hello, I've built an all steel cab for my 09-10 BX25 itrs working out very well.
I went with the diesel heater as opposed to hot water from the engine and although the heater seems to be capable of producing more than enough heat for our north of 45 degree lat. the problem that I have is the radiator fan sucking the heat from the cab as fast as the heater can make it. I removed the shroud around the battery compartment and stuffed foam in which took care of the problem along with closing up the various holes around the seat and other places but now the engine runs hot, almost red line. I took a piece of the foam out and its running at a good temp but still sucking a lot of cold in the cab.
There doesn't seem to be a way to open up the bottom of the radiator area to allow air in from a different spot so my question is how have others got around this problem, I can't be the only one?

 

[Runs With Scissors]

Hello, I've built an all steel cab for my 09-10 BX25 itrs working out very well.
I went with the diesel heater as opposed to hot water from the engine and although the heater seems to be capable of producing more than enough heat for our north of 45 degree lat. the problem that I have is the radiator fan sucking the heat from the cab as fast as the heater can make it. I removed the shroud around the battery compartment and stuffed foam in which took care of the problem along with closing up the various holes around the seat and other places but now the engine runs hot, almost red line. I took a piece of the foam out and its running at a good temp but still sucking a lot of cold in the cab.
There doesn't seem to be a way to open up the bottom of the radiator area to allow air in from a different spot so my question is how have others got around this problem, I can't be the only one?

You might get more suggestions if you add some pics.

Lots of talented people on this board, but not all of them have a BX25, nor have any of us seen your cab layout……... yet.

 

[Ping]

53woodsman,
Pictures of your setup would. When I built my cab for my BX, I allowed for air intake on both sides of the cowl cover. And, added a cover to provide airflow thru the original air intake screen located below the steering wheel. This cover attaches to the cab and provides about 3/4" space between the cover and intake screen providing cold air to the radiator. This setup has been working great since I built the cab several years ago. No overheating of the engine coolant and warm and toasty cab.
Let me know if you have any questions.

BX Snow Cab

Those Darn Doors, Part 1 Just like the window frames, the door frames were built using the cab frame as a template. Hinges spacing their reveal and 1/4" stock spacing the remaining 3 sides. Unlike the windows however, these required them to be built in 2 steps, 1 for each plane. The lower...

www.orangetractortalks.com

 

[85Hokie]

A diesel heater? I take it there is a built in vent for fumes to exit the cab? Is there a fresh air intake also?

Ping beat me to an idea to bring the cold air back into the radiator.

 

[Hugo Habicht]

Can you not replace the fan for winter with reversed flow fins?

 

[BXHoosier]

Are you sure that there aren’t removable panels below the battery? My Bx24 has them.

 

[Ping]

I have a BX2370, never knew there were removable panels when I built my cab. And, have been toooooo lazy to check now that I have everything is completed.

 

[53woodsman]

Are you sure that there aren’t removable panels below the battery? My Bx24 has them.

I checked that and there doesn't seem to be anything that can be removed.

 

[53woodsman]

Can you not replace the fan for winter with reversed flow fins?

They are not available and would blow fumes in the cab. Also, it gets extraordinarily cold here.

 

[53woodsman]

A diesel heater? I take it there is a built in vent for fumes to exit the cab? Is there a fresh air intake also?

Ping beat me to an idea to bring the cold air back into the radiator.

The heater has an exhaust and recirculation of cab air.

 

[53woodsman]

53woodsman,
Pictures of your setup would. When I built my cab for my BX, I allowed for air intake on both sides of the cowl cover. And, added a cover to provide airflow thru the original air intake screen located below the steering wheel. This cover attaches to the cab and provides about 3/4" space between the cover and intake screen providing cold air to the radiator. This setup has been working great since I built the cab several years ago. No overheating of the engine coolant and warm and toasty cab.
Let me know if you have any questions.

BX Snow Cab

Those Darn Doors, Part 1 Just like the window frames, the door frames were built using the cab frame as a template. Hinges spacing their reveal and 1/4" stock spacing the remaining 3 sides. Unlike the windows however, these required them to be built in 2 steps, 1 for each plane. The lower...

www.orangetractortalks.com

Very helpful, that's close to what I had in mind but I wondered if I was missing something and there was a factory solution I wasn't seeing. Kubota dropped the ball on this for sure. I'll get some photos posted. Thanks.

 

[North Idaho Wolfman]

Very helpful, that's close to what I had in mind but I wondered if I was missing something and there was a factory solution I wasn't seeing. Kubota dropped the ball on this for sure. I'll get some photos posted. Thanks.

They didn't drop the ball, they just didn't design the BX25 to have a cab.

 

[Spam Bot]

I doubt the initial series BX wasn't designed with a cab in mind, but there was a removable panel under the battery. They must have had something in mind when they made the panel removable, but I have no idea what it was. Curtis Cab introduced a cab for the BX series of tractors sometime around 2006 or 2007. From memory, I believe that the BX tractors were introduced sometime around 2002.