B7510 temperature gauge

[olekid]

Greetings, my B7510 temperature gauge barely moves of cold, been like that for a number of years. I was telling a friend about it and he said I should get it checked because a diesel needs to run at a certain temperature and cold is not that temperature, Any advice on this situation?

 

[85Hokie]

Greetings, my B7510 temperature gauge barely moves of cold, been like that for a number of years. I was telling a friend about it and he said I should get it checked because a diesel needs to run at a certain temperature and cold is not that temperature, Any advice on this situation?

get a infrared thermometer .....

get engine hot, like a good workout for 30 minutes or better...

check temp at top of radiator neck where hose connects

and at bottom neck....

top should be something close to 200 F

bottom should 60-80 less.

report back your findings

 

[Dave_eng]

I have attached the testing procedure for the sensor and the gauge.

If you follow the instructions carefully you should find out if there is a problem and if so where in the system/

Dave

 

[lugbolt]

forget the IR they are inaccurate the coolant's actual temp is much higher than the block temp (usually), plus IR only reads surface temp.

find the "sensor" wire. Remove the wire from the sensor, then take that wire and ground it somewhere on the block. Turn the key on and see what the temp gauge does, it should go to full hot. If not, the gauge or wiring is suspect. If it does, they are working properly. Sensor could be "bad" or the engine just isn't getting hot for whatever reason

simple system that many don't understand and tend to overcomplicate

 

[olekid]

Thanks for the replies, I will try these suggestions out and let you all know how I made out.

 

[olekid]

get a infrared thermometer .....

get engine hot, like a good workout for 30 minutes or better...

check temp at top of radiator neck where hose connects

and at bottom neck....

top should be something close to 200 F

bottom should 60-80 less.

report back your findings

I checked the temperature of the coolant with an infrared at the radiator cap hole, the antifreeze was at 160 F. what

 

[85Hokie]

Ok
was the tractor worked hard when you did this???
AND you said " radiator cap hole "

Measure at the metal part of the neck where the upper hose goes.....(cap on)
and then the exact spot on the lower hose ....
have tractor running when measuring.

What two number you come up with?

 

[olekid]

Ok
was the tractor worked hard when you did this???
AND you said " radiator cap hole "

Measure at the metal part of the neck where the upper hose goes.....(cap on)
and then the exact spot on the lower hose ....
have tractor running when measuring.

What two number you come up with?

I used the tractor for 2 hours never shut off hauling trailers of hardwood, gently top off rad cap and put the dot on the antifreeze in the hole