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k1100lt 03-10-2010 11:43 AM

tire pressure
 
the adventure continues we need tire pressure recommendations for 1978 35 ft.FCSB dunlop sp318 11R 22.5 Bird is empty, please advise as soon as possible as we have not headed out yet this morning on our adventure home.

Rob Robinson 03-10-2010 11:59 AM

Quote:

Originally Posted by k1100lt (Post 49899)
the adventure continues we need tire pressure recommendations for 1978 35 ft.FCSB dunlop sp318 11R 22.5 Bird is empty, please advise as soon as possible as we have not headed out yet this morning on our adventure home.

Glen lacking a Dunlop Load Pressure table I would use the Michelin chart to select the tire pressure for each axle. Hopefully you have a truck scale near you so you can weigh your coach at each axle. Here's a link to the Michelin chart

http://www.michelinrvtires.com/miche...ion-tables.jsp

k1100lt 03-10-2010 12:21 PM

Strangers in Paradise
 
No scale in sight but we will watch for one as we travel. We will go with 105 front and 75 rear till we weigh up. In Beckley WV right now headed North on I64 to Charleston.

bubblerboy64 03-10-2010 12:26 PM

Put 95 in the rear tires

k1100lt 03-10-2010 12:38 PM

Thank you John will do

Stephen 03-10-2010 12:40 PM

I used 80 in the rear and 95 in the front on our 77 fc

bubblerboy64 03-10-2010 12:44 PM

Steve, I ran a little higher pressures in my FC but certainly the pressures should be calculated as per Rob's chart. I just thought 75 seemed pretty low. I think I ran 90 and 105 in my FC and it was a 31 footer. Always better to be a little high then too low. Right?

rbbuscher 03-10-2010 01:03 PM

On a chart in my compressure bay it said 120psi all tires cold. I put 110 PSI cold. Going down the road the fronts can reach 135 PSI hot. Per the tire mon.

iamflagman 03-10-2010 01:07 PM

Quote:

Originally Posted by Rob Robinson (Post 49901)
Glen lacking a Dunlop Load Pressure table I would use the Michelin chart to select the tire pressure for each axle. Hopefully you have a truck scale near you so you can weigh your coach at each axle. Here's a link to the Michelin chart

http://www.michelinrvtires.com/miche...ion-tables.jsp

Glen,

Here is the Dunlop chart, they don't list the 318 but you can choose a similar model and load range to determine the proper pressure. http://www.dunloptires.com/truck/res...gData_Imgs.pdf

You can locate a scale by using this web site http://www.dieselboss.com/

bubblerboy64 03-10-2010 01:32 PM

Bob, I am no expert but, if your tire is to be inflated to 120 psi cold why would you decrease it to 110 because it reaches 135 while hot?


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