1951 B - Temperature Question

[rmonio]

My new (old) 1951 JD B's temperature gauge isn't showing any temperature - even after 2 hours of spreading manure. The unit doesn't seem hot and the blinds arn't too hot with the air. However, if the gauge isn't showing anything, should I be thinking the gauge and sensor are bad and they should be changed out?

Someone had told me there is a kit that combines all together - is this true?

Happy to get recommendations and thoughts from the folks here.

Thanks for your help!

-Bob

 

[jd110]

It does sound like you need a new gauge. The B uses a mechanical temperature gauge which means it has a sensing bulb that screws in the engine and the bulb is attached to the gauge with a capillary tube. It comes as one part and cannot be separated. Here is an example: John Deere Water Temperature Gauge for John Deere A,B,D,G,H - R3812

 

[rmonio]

It does sound like you need a new gauge. The B uses a mechanical temperature gauge which means it has a sensing bulb that screws in the engine and the bulb is attached to the gauge with a capillary tube. It comes as one part and cannot be separated. Here is an example: John Deere Water Temperature Gauge for John Deere A,B,D,G,H - R3812

Thanks!

When changing this sensing bulb and gauge, do I need to drain the antifreeze/water as well?

-Bob

 

[DaninOhio]

If you want a restoration quality gauge contact Jerry Trcka. His are correct and will read right. I got one years ago for my A (first tractor) from one of the other parts suppliers that always reads low, total waste of money. Google his hame or use Facebook.

 

[boomer1025]

Just drain the coolant level down below where the sensing bulb goes in. Once you remove the sensing bulb it is very easy to test the temp gauge, by putting the bulb in a small pot or cup of boiling water. Then see if the gauge works.