Looking for any tips/tricks for mounting a set of new GY 8:50x6 tires to new ABI 199-62 wheels, in order to minimize any chances for slippage later on. Any products or ways to prep the tires/wheels prior to mounting??

I know the ABI wheels are anodized aluminum if that makes any difference. These will be my primary tires for the foreseeable future, so I want to run them as low as possible for the softest ride.

Thanks

Hello,
I know a guy that applied generous amounts of regular contact cement to both the tire, and wheel to avoid slippage. Apply the contact cement with a dauber or brush, let it dry until it's just tacky then assemble the tire. It works.

James
Clear Creek Idaho

How do you dismount them after the glueing?

Glidergeek wrote:How do you dismount them after the glueing?

I was wondering the same thing. I've always had a tough time dismounting them without any glue!

Thx James, good tip. I would imagine the cement to be good enough to hold the tire to the wheel, but not strong enough to keep from being able to dismount it when needed.

I dont think you will have any problem. I just mounted a set of GY8.50 with the new ABI wheels and they are a tight fit. Besides i have never actually seen a slipped tire or sheered valve stem even with heavy 207 or 185 with the occasional lower then norm pressure. I just dont think its a problem unless you think there is some benefit from runner super super low pressure and in that case maybe you need bigger tires then 8.50s. Mount them up normally, paint slippage marks and keep the pressure above say 20. Also there does seem to be some worn wheels and or lower quality tires that do seem to have very little interference fit between the tire and wheel but the GY and ABI wheel will not have that issue.

Wider experience (both in terms of reading online and other's experience) seems to suggest that 20psi is the critical pressure.
But I still keep an eye on mine!

Glidergeek wrote:How do you dismount them after the glueing?

The contact cement isn't that strong that would cause any problem in dismounting the tire. A small rubber mallet or just standing on the tire will easily break the bead. Clean up is very no problem. It works great on the 29 inch airhawks run at lower tire pressures too. Good luck.

James

The big question is "What type/weight aircraft". That will determine how low you can run pressure. If you're putting them on a Cessna 180/185 or similar I'd keep pressures at or above 20 psi. A cub could run down to ~ 12 psi.

Go to NAPA and buy a digital air pressure gauge, remove those hub caps so it's quick and easy to check pressures, then CHECK them frequently. Unless you're using nitrogen, all tires/tubes leak some. Temperature changes pressure a little, etc. so, if you're going to run low psi, make checking pressure part of your routine.

The cement thing does help.

Finally, the Goodyear 26 inch tires are great tires, but they are NOT very flexible. You can run the pressure down to scary low, and they still won't flex much. If you need a tire that will roll over big stuff with a lot of flex, look at Bushwheels. Just don't expect the GY 26 to perform like Bushwheels just because you lower the psi.

FWIW

MTV

mtv wrote:Finally, the Goodyear 26 inch tires are great tires, but they are NOT very flexible. You can run the pressure down to scary low, and they still won't flex much. If you need a tire that will roll over big stuff with a lot of flex, look at Bushwheels. Just don't expect the GY 26 to perform like Bushwheels just because you lower the psi.

Further to Mike's comments (not sure whether you were interested in the 8.50 or 26", but) I would say the 26's do offer some increase in cushioning at the point of touchdown and rolling into 'large-scale' humps and ridges compared to a standard small tire. What they do not offer is any localised "flex" in terms of rolling over a protruding rock or driftwood without feeling the bump, there is absolutely zero help there. They do offer less rolling resistance as you roll over said bump, but you and your plane are going to feel it.

If the hubcap screw holes happened to go all the way through the rim, a sharpened longer screw could protrude into the tyre bead a quarter inch and the tyre will not slip at low pressure. Goodyear 8.50x6 are tougher, stiffer, much longer wearing, and only 4 grooves compared to McCreary's.

maules.com wrote:If the hubcap screw holes happened to go all the way through the rim, a sharpened longer screw could protrude into the tyre bead a quarter inch and the tyre will not slip at low pressure. Goodyear 8.50x6 are tougher, stiffer, much longer wearing, and only 4 grooves compared to McCreary's.

Was that with the 8.50 or 26", and how low-pressure are we talking?
With experimental I can add extra screws if needs be.

bart wrote:Looking for any tips/tricks for mounting a set of new GY 8:50x6 tires to new ABI 199-62 wheels, in order to minimize any chances for slippage later on. Any products or ways to prep the tires/wheels prior to mounting??

I know the ABI wheels are anodized aluminum if that makes any difference. These will be my primary tires for the foreseeable future, so I want to run them as low as possible for the softest ride.

Thanks

MAF puts "paint marks for slippage " on there wheel/tire . Don't glue anything if you ever want to get it apart .lf your going to 850s make sure everything clears ! You may have to use a 1/4 inch spacer on axle to clear inside of tire/landing gear leg.

Battson, that screw trick will work for 8.50x6, 9.00x6 (if you can find a set), and 26" Goodyear (blimp) tyres.
Depending on weight of airplane how low pressure to run, taking into account sideloads of course and provided the calipers are mounted correctly in forward position so a side squeezed tyre cannot catch the caliper.

maules.com wrote:Battson, that screw trick will work for 8.50x6, 9.00x6 (if you can find a set), and 26" Goodyear (blimp) tyres.
Depending on weight of airplane how low pressure to run, taking into account sideloads of course and provided the calipers are mounted correctly in forward position so a side squeezed tyre cannot catch the caliper.

Great, so I need about 1/4" protruding into the tire bead.

For a Maule - what is the lowest pressure you imagine you could run in a 26" or 8.50, using this method?

I dont use pressure, I use bulge which is dependant on load and density altitude.
Starting with 8.50s for normal use on a Maule, the outer rib is barely contacting the tarmac at about 20psi, Ive run them at 12psi but my guess is that 14 might be better. You dont want to wack the rim on a rock.
Blimp tyres are much stiffer so 12 should be good but again I eyeball.

Thanks for your good advice Jeremy.