BCM Community

Bus Discussion => Bus Topics ( click here for quick start! ) => Topic started by: opus on March 23, 2018, 10:58:29 AM

Title: Tire pressure
Post by: opus on March 23, 2018, 10:58:29 AM
If....my tires should be 80# psi cold, what would the pressure be warm?
Title: Re: Tire pressure
Post by: chessie4905 on March 23, 2018, 11:20:48 AM
Set them cold, then make a check of the pressure after fully warmed up after a trip of at least 30 minutes. The pressure you see will vary according to how hot the tire is-variable. That's why they spec. setting temp cold. Like setting valves on Detroit when cold.
Title: Re: Tire pressure
Post by: opus on March 23, 2018, 11:29:16 AM
Yes, I know that's the proper way. I won't be able to do that in this case. What I think I will do is check them hot and keep all the pressures at the highest hot temp until I can check them cold.
Title: Re: Tire pressure
Post by: chessie4905 on March 23, 2018, 11:32:53 AM
You are constantly driving and not letting it sit for 4 hours or more?
Title: Re: Tire pressure
Post by: opus on March 23, 2018, 11:37:18 AM
No, but it's going to be difficult for this first trip. I've got it close enough for now. I'll check later hot and see how even they are.
Title: Re: Tire pressure
Post by: kyle4501 on March 23, 2018, 05:15:34 PM
Tire charts call for 95 psi for my axle weights. I'm running the max on the sidewall (105) cold.

It allows for some air loss before tire damage - in theory . . . .
Title: Re: Tire pressure
Post by: Ed Hackenbruch on March 23, 2018, 07:02:31 PM
I found as a general rule of thumb that my tire pressure would go up by 10-12 percent.
Title: Re: Tire pressure
Post by: Utahclaimjumper on March 24, 2018, 05:07:45 AM
 And the side getting the sun will be higher than the other side.>>>D
Title: Re: Tire pressure
Post by: sledhead on March 24, 2018, 05:39:52 AM
yup I use the laser temp. gun most times I stop and yes the sunny side is 20 + deg f higher then the not in sun side

dave
Title: Re: Tire pressure
Post by: opus on March 24, 2018, 07:48:39 AM
Hey, figured that all in.  Thanks!