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08-17-2018, 12:19 AM
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#21
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Junior Member
Brand: Thor Motor Coach
Model: Vegas 25.3
State: Colorado
Posts: 16
THOR #11629
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I've got a new Vegas and I'm just getting around to checking tire pressure. Checking the pressure on the dualies is a challenge. For the inner tire there is an extender hose with a Presta valve mounted in a clamp attached to the rim (see photo). There doesn't seem to be enough of the valve extended outside of the clamp bracket to get a tire pressure gauge to work and I'm sure I won't be able to put any air in it either. Have any of you dealt with this and what have you done? Many thanks for any help.
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08-17-2018, 12:24 AM
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#22
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Axis/Vegas Enthusiast
Brand: Thor Motor Coach
Model: Axis 24.4
State: Michigan
Posts: 9,837
THOR #1150
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I bet if you check the back of that you'll find some extra threads that wasn't screwed through.
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08-17-2018, 01:23 PM
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#23
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Senior Member
Brand: Thor Motor Coach
Model: 28z
State: North Carolina
Posts: 252
THOR #7401
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Quote:
Originally Posted by skbarbee
I've got a new Vegas and I'm just getting around to checking tire pressure. Checking the pressure on the dualies is a challenge. For the inner tire there is an extender hose with a Presta valve mounted in a clamp attached to the rim (see photo). There doesn't seem to be enough of the valve extended outside of the clamp bracket to get a tire pressure gauge to work and I'm sure I won't be able to put any air in it either. Have any of you dealt with this and what have you done? Many thanks for any help.
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I had problems with those type valves, also. FINALLY, I got some 6" solid extenders and JOY. They say you need to have a metal valve stem on your tire and I did so they went right on and now I can check and adjust air pressure. If I hadn't had metal valve stems on the inside tires I would have paid a tire shop to replace them.
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08-17-2018, 02:33 PM
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#24
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Senior Member
Brand: Thor Motor Coach
Model: THOR Chateua 35SF
State: Florida
Posts: 5,850
THOR #11130
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You'll need an air compressor for the road eventually....the Viair is specifically designed for this and has all the attachments. I bought the Model 400-RV.
__________________
Now an SOB
Traded Thor for Melbourne Prestige 24NP
2018 THOR Chateau 35SF
Two Labs, Bugsie & Blondie
Blondie passed in 2020 at 5 to Leukemia
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08-18-2018, 07:20 PM
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#25
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Junior Member
Brand: Thor Motor Coach
Model: Windsport
State: Pennsylvania
Posts: 10
THOR #12275
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tire pressure
Go ONLY by what your RV says on the tire pressure sticker... everything depends on GVW on the axles for your specific year and model.
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08-18-2018, 08:23 PM
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#26
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Senior Member
Brand: Thor Motor Coach
Model: Forest River Forester 235
State: Indiana
Posts: 4,883
THOR #6826
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Quote:
Originally Posted by wp013111
Go ONLY by what your RV says on the tire pressure sticker... everything depends on GVW on the axles for your specific year and model.
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I respectfully disagree with this. I think you should rely entirely on the TIRE manufacturer’s recommendation using the SPECIFIC TIRE MODEL PRESSURE CHART available online. The motor home sticker is correct for the factory installed tires at the vehicle’s maximum GVWR. If you are at a different weight or have different brand or model tires the recommended pressure can be several pounds different. That said you won’t hurt anything relying on the Thor sticker.
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08-19-2018, 12:11 PM
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#27
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Junior Member
Brand: Thor Motor Coach
Model: Windsport
State: Pennsylvania
Posts: 10
THOR #12275
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tire pressure
When I bought tires at Goodyear the tires say 90PSI they put in the pressure on the sticker which is 85 for the duals and 85 for the single. They just told me to check the pressure cold.
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08-28-2018, 03:35 PM
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#28
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Senior Member
Brand: Thor Motor Coach
Model: Chateau 24F
State: Arizona
Posts: 250
THOR #2878
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So, what is the consensus on the tire pressure? My door sticker says 75 front and 65 rear? My tires are stamped 80 max.
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08-28-2018, 03:41 PM
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#29
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Senior Member
Brand: Thor Motor Coach
Model: 28z
State: North Carolina
Posts: 252
THOR #7401
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Quote:
Originally Posted by Skip 500
So, what is the consensus on the tire pressure? My door sticker says 75 front and 65 rear? My tires are stamped 80 max.
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Are you sure your door sticker says 65 rear?
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08-28-2018, 04:36 PM
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#30
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Senior Member
Brand: Thor Motor Coach
Model: Chateau 24F
State: Arizona
Posts: 250
THOR #2878
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That is what the Thor and Ford sticker said, I think . I will look this afternoon and double check. I'm getting old and forgetful.... what were we talking about?
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08-28-2018, 04:43 PM
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#31
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I Think We're Lost!
Brand: Still Looking
Model: Tiffin Wayfarer 24 BW
State: New York
Posts: 22,195
THOR #8860
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__________________
"What: me worry?"
Good Sam Member 843599689
Current coach: Tiffin Wayfarer 24 BW
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08-28-2018, 08:01 PM
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#32
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Senior Member
Brand: Thor Motor Coach
Model: Hurricane 29M
State: Texas
Posts: 2,672
THOR #11781
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The pressure stamped on the tire is maximum for the tire. That is the tested pressure that the tire manufacturer recommends you never go above regardless of the vehicle it is mounted on. The sticker from the vehicle manufacturer is what you go by.
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Lt Keefer
2018 Hurricane 29M
CHF, Saf-T-Plus, SumoSprings
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08-28-2018, 08:05 PM
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#33
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Axis/Vegas Enthusiast
Brand: Thor Motor Coach
Model: Axis 24.4
State: Michigan
Posts: 9,837
THOR #1150
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Weigh your RV then go to your tire manufacturer's website, find the RV weight loading chart and look up the tire pressure based on your units weight.
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08-28-2018, 09:05 PM
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#34
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Senior Member
Brand: Thor Motor Coach
Model: THOR Chateua 35SF
State: Florida
Posts: 5,850
THOR #11130
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Lt Keefer said it very simply and correct. The tire manufacturer has no idea what you will put these tires on...single rear wheel, dual real wheel, etc. the chassis manufacturer does know...go by the sticker in the door. Insurance companies will in the event of a serious accident that could possibly be blamed on tires....and they DO look.
__________________
Now an SOB
Traded Thor for Melbourne Prestige 24NP
2018 THOR Chateau 35SF
Two Labs, Bugsie & Blondie
Blondie passed in 2020 at 5 to Leukemia
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08-28-2018, 09:29 PM
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#35
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Senior Member
Brand: Thor Motor Coach
Model: Gemini 23TR
State: California
Posts: 981
THOR #6701
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I agree with the vehicle manufacturers recommended pressure. I have done that for many years. My sticker says 67 front and 62 rear so thats what I do. Tires say 70.
Bob, Don't worry about remembering what the first one is, when it happens you will know.
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2017 Gemini 23TR Ford chassis w/ power stroke 3.2
DW, Daughter and 2 dogs, Sofie (black lab/boxer) and Phoebe (schnoodle)
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08-28-2018, 09:57 PM
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#36
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I Think We're Lost!
Brand: Still Looking
Model: Tiffin Wayfarer 24 BW
State: New York
Posts: 22,195
THOR #8860
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Quote:
Originally Posted by JamieGeek
Weigh your RV then go to your tire manufacturer's website, find the RV weight loading chart and look up the tire pressure based on your units weight.
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This is probably the wisest course of action...
Sam,
I just like to know what I'm missing!
__________________
"What: me worry?"
Good Sam Member 843599689
Current coach: Tiffin Wayfarer 24 BW
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08-28-2018, 10:34 PM
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#37
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Senior Member
Brand: Thor Motor Coach
Model: Forest River Forester 235
State: Indiana
Posts: 4,883
THOR #6826
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The Thor sticker is the correct tire pressure for the original equipment tires at the RVs GVWR (maximum allowed weight). If your particular machine weighs less than that you might find a better ride at a pound or two lower. You really should weigh front and rear (or better, each corner separately) and then look up the tire manufacturers recommendation for that weight and configuration (front single rear or dually rear). It’s the only way to get it specifically right. Different tire brands and models can be different. If all that is too much work just follow the Thor sticker.
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08-29-2018, 06:11 PM
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#38
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Senior Member
Brand: Thor Motor Coach
Model: Chateau 24F
State: Arizona
Posts: 250
THOR #2878
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Quote:
Originally Posted by Gary A
Are you sure your door sticker says 65 rear?
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Yes, Front 70, Rear 65
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08-29-2018, 06:14 PM
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#39
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I Think We're Lost!
Brand: Still Looking
Model: Tiffin Wayfarer 24 BW
State: New York
Posts: 22,195
THOR #8860
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I'd say those are your best starting points...
Just take a peek at the tire sidewalls, and check what the maximum tire pressure allowed is also.
__________________
"What: me worry?"
Good Sam Member 843599689
Current coach: Tiffin Wayfarer 24 BW
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08-29-2018, 06:33 PM
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#40
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Senior Member
Brand: Thor Motor Coach
Model: Chateau 24F
State: Arizona
Posts: 250
THOR #2878
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Max is 80 on the tire sidewall. I will start at the recommended sticker pressures and monitor the ride and look for any wear. Had the tires balanced at discount tire and bought the replacement certificates that include free replacement and lifetime balancing and rotation. They claim that they can rotate the tires and this shop does a lot of RV work with all the snowbirds we get here. I always watch my tires and wear patterns.
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