idleing tractor for awhile

[clemsonfor]

Most fire departments stick to one brand of motors for various reasons. Firetrucks idle for long periods of time at a scene, 4-8 hours was not uncommon, as you need the electrical power for lights, AC, power to equipment, etc. The Detroit 60 series and if memory serves me the 70 series had a problem with not having enough oil pressure to lubricate the top end of the motor at idle. Several departments that bought trucks with Detroits had to overhaul engines much more frequently than those with Cummins or Cat motors due to this. I would be worried about the same problem with any motor at idle for an extended length of time. Getting on and off for a few minutes shouldn't matter. More than 10-15 minutes, I shut it down.

Those motors must have really had a problem as those engines i think are usually at a high idle to facilitate the power needed to run the pumps as well as other things.

Just throwing that in.

 

[Neat 1500]

Seems unusual to me to have a higher oil pressure after warming up.

it must be the oil viscosity hot that allows it to flow easier therefore increased oil pressure. revving it up makes almost no difference hot but a little increase when it is cold. i have not studied the oil pump on these machines so i think that is the next thing i will do :thumbsup:

 

[Car Doc]

Analog electric gages work on a bi-metal strip that gets warm and moves the needle based on how much resistance is in the sender circuit so a cold gage will usually not work as fast as a warm gage. fwtw

Now mechanical gages read whats there and temp doesn't affect them. Gages 101 :thumbsup:

 

[Henhouse1]

Analog electric gages work on a bi-metal strip that gets warm and moves the needle based on how much resistance is in the sender circuit so a cold gage will usually not work as fast as a warm gage. fwtw

Now mechanical gages read whats there and temp doesn't affect them. Gages 101 :thumbsup:[/QUOTE

AAAhhhhh! Takin' me right back to A&P school.(aircraft Maintenance)

 

[bullbreaker]

Everytime this topic comes up I think about PTO powered genny's or water pumps.

Boone

 

[Car Doc]

Analog electric gages work on a bi-metal strip that gets warm and moves the needle based on how much resistance is in the sender circuit so a cold gage will usually not work as fast as a warm gage. fwtw

Now mechanical gages read whats there and temp doesn't affect them. Gages 101 :thumbsup:[/QUOTE

AAAhhhhh! Takin' me right back to A&P school.(aircraft Maintenance)

Yup just like that exactly!

I was taught early on that "its difficult to be Responsible for something or Control something unless you have Knowledge of it".

The KRC triangle Knowledge,Responsibility,Control.