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10-01-2012, 05:56 PM
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#1
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Winnebago Owner
Join Date: Nov 2011
Location: Southeast,MI
Posts: 126
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tire pressure
Weighed our 03 Sightseer today. We were only able to weigh the front and rear not each corner. The front weighed 5380 and the rear 9940. We have goodyear 245/70/19.5 tires. When I checked the goodyear chart for recommended inflation pressure I found nothing to match my weights. Did we get a bad weight reading or am I not reading the chart correctly? Any help would be appreciated. Just trying to get a little better ride. By the way, the shocks were replaced with Bilsteins the other day.
__________________
Neal and Deb + Mya and Gizmo, the pup's
2003 Winnebago Sightseer 30B
May the roads rise up to meet you, May the winds be always at your back...
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10-01-2012, 06:14 PM
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#2
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Winnebago Owner
Join Date: Jun 2009
Posts: 107
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Do you have F, G or H rated tires?
And what is the High PSI on the sidewall?
Did you have a full fuel tank?
Any fresh water you carry when traveling?
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10-01-2012, 06:21 PM
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#3
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Winnebago Master
Join Date: Aug 2005
Location: Nashua, NH
Posts: 1,824
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Quote:
Originally Posted by Pepper2
Weighed our 03 Sightseer today. We were only able to weigh the front and rear not each corner. The front weighed 5380 and the rear 9940. We have goodyear 245/70/19.5 tires. When I checked the goodyear chart for recommended inflation pressure I found nothing to match my weights. Did we get a bad weight reading or am I not reading the chart correctly? Any help would be appreciated. Just trying to get a little better ride. By the way, the shocks were replaced with Bilsteins the other day.
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According to page 2 of the Goodyear RV Inflation Tables pdf, with a front weight of 2690#/tire and a rear weight of 2485#/tire you should be able to run 70 PSI in all of your tires (the lowest value in the table). Even if you were at your maximum GVWR of 18,000# you would still be OK with that tire pressure.
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Chris Beierl
2005 Winnebago Vectra 36RD
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10-01-2012, 06:41 PM
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#4
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Winnebago Master
Join Date: May 2011
Location: Vancouver, WA
Posts: 560
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Quote:
Originally Posted by cbeierl
According to page 2 of the Goodyear RV Inflation Tables pdf, with a front weight of 2690#/tire and a rear weight of 2485#/tire you should be able to run 70 PSI in all of your tires (the lowest value in the table). Even if you were at your maximum GVWR of 18,000# you would still be OK with that tire pressure.
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That depends on when the tire was manufactured, if after 2/28/06 then the min. the OP should run is 80 psi front and rear. That's also in the chart linked above.
__________________
2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft
Charter Lifetime GS Member, SKP, FMCA,
RV'ing since 1957, NRA Benefactor Life, towing '14 CR-V
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10-01-2012, 08:47 PM
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#5
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Winnebago Owner
Join Date: Aug 2008
Location: Bellevue WA
Posts: 56
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Sorry I do not understand what is being said here,
(front weighed 5380 and the rear 9940. We have goodyear 245/70/19.5 tires)
and Chris you saying
"front weight of 2690#/tire and a rear weight of 2485"
So are dividing the front by 2 for two tires and the rear by 4 because of duals?
And so he can then run 70#'s per tire and by running the lowest #'s this will give him a better ride, and the more air in a tire will produce a harder ride? Do I understand this now?
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10-01-2012, 09:03 PM
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#6
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Winnebago Master
Join Date: May 2011
Location: Vancouver, WA
Posts: 560
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Quote:
Originally Posted by doit2010
Sorry I do not understand what is being said here,
(front weighed 5380 and the rear 9940. We have goodyear 245/70/19.5 tires)
and Chris you saying
"front weight of 2690#/tire and a rear weight of 2485"
So are dividing the front by 2 for two tires and the rear by 4 because of duals?
Most tire charts are not set up that way but the one linked to is.
And so he can then run 70#'s per tire and by running the lowest #'s this will give him a better ride, and the more air in a tire will produce a harder ride? Do I understand this now?
OP still needs to let us know about the tire date as per my earlier post.
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See answers above
__________________
2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft
Charter Lifetime GS Member, SKP, FMCA,
RV'ing since 1957, NRA Benefactor Life, towing '14 CR-V
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10-01-2012, 09:27 PM
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#7
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Winnebago Master
Join Date: Aug 2005
Location: Nashua, NH
Posts: 1,824
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Quote:
Originally Posted by Mr_D
That depends on when the tire was manufactured, if after 2/28/06 then the min. the OP should run is 80 psi front and rear. That's also in the chart linked above.
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Yes, thanks for catching that. 80# all around sounds like what you'll want--even if you have tires older than 2/28/06 it wouldn't hurt anything.
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Chris Beierl
2005 Winnebago Vectra 36RD
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10-02-2012, 11:19 AM
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#8
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Winnebago Owner
Join Date: Nov 2011
Location: Southeast,MI
Posts: 126
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They have a 07 date,so 80# sounds right. Thanks everyone.
__________________
Neal and Deb + Mya and Gizmo, the pup's
2003 Winnebago Sightseer 30B
May the roads rise up to meet you, May the winds be always at your back...
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