Tire Pressure July 24, 2019, 02:33:35 pm My 1990 26' MB has tire pressure recommendations on the door jam from back in the day. They say 65lb and 55lb front/rear. The original spare was under the cover never used and it said 70lb max inflation. Not only that but I noticed the factory rims say 70 lb. max inflation. And yet...modern truck tires state 80lb.s. For those of you with early coaches what pressures do you run?
Re: Tire Pressure Reply #1 – July 24, 2019, 02:49:39 pm So would that be a GM chassis? What is your load rating requirements? Load range D? If the rims are stamped 70PSI max, then to use load range 'E' tires for 80 PSI rims, you could run them at 70 Psi. That is 16" tires not 16.5" correct? RonB
Re: Tire Pressure Reply #2 – July 24, 2019, 03:29:03 pm We got the inflation load tables from the tire manufacturer (this was easy to do).We had the rig weighed - you should do that to make sure you are driving safely - a 4 tire weigh if possible. If not at least an each axle weigh - very easy to get that.Then inflate to the proper pressure states in the load tables (for your tire and your LD weight).JaneSent from Yahoo Mail for iPhone 1 Likes
Re: Tire Pressure Reply #3 – July 25, 2019, 10:05:01 am Jagerbeast,I am running 70 psi front and 65 Psi rear to obtain even tire wear. Running LT215/85R16 range E tires. I also know I am running at 10% o^3r the 11,000 lb. GVWR. Running a 1988 Ford E350 chassis. 1 Likes
Re: Tire Pressure Reply #4 – July 25, 2019, 10:56:46 am Quote from: RonB - July 24, 2019, 02:49:39 pmSo would that be a GM chassis? What is your load rating requirements? Load range D? If the rims are stamped 70PSI max, then to use load range 'E' tires for 80 PSI rims, you could run them at 70 Psi. That is 16" tires not 16.5" correct? RonBThis is the Ford E-350 chassis. They are 16" original Ford rims.
Re: Tire Pressure Reply #5 – July 25, 2019, 12:20:23 pm What Jane said: weigh your rig and use the pressures (by axle) specified for that weight by the tire maker's chart.Don't use the pressure on the door jamb sticker.Don't use the maximum pressure on the tire sidewall.Don't use the pressure a tire salesman tells you.Don't use the pressure your RVing friends use.Weigh your rig and use the correct pressures for that weight. 3 Likes
Re: Tire Pressure Reply #6 – July 25, 2019, 08:50:23 pm Nobody can share what tire pressure to use until they know what 1. your rigs weights both front axle weight and rear axle weight individually, i.e. right side tire weight left side tire weight, and 2. what tires you are using. If you live in Oregon all weight station leave the scales on 24/7. Just drive in. I would suggest you avoid the ones on I-5..... Without the information we'd be guessing and I can assure you the last thing you need is us guessing what is safe for you. Only you know what is safe for you.glen
Topic: Tire Pressure (Read 267 times)
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Topic: Tire Pressure (Read 267 times)
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