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cmack
03-19-2007, 04:29 PM
I have Goodyear Marathon tires on the single axle trailer. The tires looked low and thought I would top them off. The sidewall for the tire says 65 psi. The tires are at 100psi before I touched them.
This was from the dealer like this.
They look really buldging. Is everyone else running 65 psi or more?

KnoxX2
03-19-2007, 04:31 PM
I run 65PSI.............

Sodar
03-19-2007, 04:34 PM
I have Goodyear Marathon tires on the single axle trailer. The tires looked low and thought I would top them off. The sidewall for the tire says 65 psi. The tires are at 100psi before I touched them.
This was from the dealer like this.
They look really buldging. Is everyone else running 65 psi or more?

Ya know, I have heard mixed responses. We had a triple axle trailer that were to be run at 50psi max, but when you put them to that pressure, they looked flat, so we called the manufacturer and they told us to run them at 90psi... we never had issues...:confused:

cmack
03-19-2007, 04:44 PM
Maybe my guage is off a tad. I let them down to what it now reads as 80psi and I would not drive it this way. The sidewall is almost touching the ground.

Jkelly
03-19-2007, 04:45 PM
I run 65 PSI. You might want to check your tire gauge and make sure the tires are cool.

cmack
03-19-2007, 04:51 PM
It is 70 degrees here. The boat is in garage. Tires are as cool as they can possible be

Jkelly
03-19-2007, 04:57 PM
I made the mistake of checking the pressure in my truck one time right after I parked it and it was way high just thought I would bring it up.
I would suspect the tire gauge.

east tx skier
03-19-2007, 05:08 PM
My Marathons say 50 psi on the sidewall and that's how I've always run them.

bigmac
03-19-2007, 05:15 PM
The tires will say right on them what the cold PSI should be at their max weight rating, but you have to make sure you have a tire gauge that works. It's worth noting that those cheapo tire gauges you can buy in the check-out aisle at the supermarket are worthless. Drop 'em once -- heck, if you even speak harshly to them - they become miscalibrated and are basically worthless.

Also note that visually inspecting radial tires can be misleading. The nature of the casing and sidewall makes them look flatter than they are.

JKTX21
03-19-2007, 05:27 PM
Yeah, I checked my tires this weekend, and they were upwards of 65 PSI, cold. I don't think I ever filled them that full, the sidewall says max 50 PSI (cold). But they do look a little splashy at times. I'm going to keep them at 50PSI as long as I don't have any problems.

cmack
03-19-2007, 05:29 PM
I'm gonna go out and buy a new guage -- We will see what the new one says

east tx skier
03-19-2007, 05:30 PM
I usually check mine with the guage on my air compressor. Haven't dropped it or spoken harshly to it, so hopefully, I'll be okay. ;)

3event
03-19-2007, 06:29 PM
Check out the attached bulletin from Goodyear regarding tire pressure on Marathons. There's another thread here somewhere on this topic, try searching for it.

BrianM
03-19-2007, 06:58 PM
I have been running my Marathons at 50psi but according to that bulletin that 3event posted above I need to be running them at 60psi. I drive fast!

boatwake
03-19-2007, 08:22 PM
Wow, good information! I have been running at 50 psi for years.

cmack
03-20-2007, 11:27 AM
It was the #@#@%^^& #$%#$%%$^ guage. It read 80psi even after it was "cleared". In realiaty the tire only had 40psi. Tires are at 65psi which is what the sidewall says.

Ric
03-20-2007, 12:06 PM
after reading that goodyear marathon tech sheet, we need more information. Will MasterCraft wheels allow for 65psi????????????????????? anyone???? anyone????