Tires from Hell--o!

gcnehring

Member
Trying to replace the rubber on JD La 4x15 with tubes. As you know the rims are cast. Have tried and tried to get the rubber to seat. Almost got it today but apparently when they were sitting with 60 psi ( I thought they might seat) they must have seatted and pinched the tubes and went flat. Had lots of soap in them and really need some ideas as what to do. 4 tubes so far!
 
Put the tire on with the tube already in it, aired up.
Not aired up hard, but aired up good and round.
That keeps it straight so it doesn't get pinched.
Use a cap with a chain to keep the valve stem in the right place.
I use tire/tube lube on them when I put them on.
Doesn't dry as fast as soapy water.
 
I soap it up good with some good tire soap or dish washing soap straight. Put the first bead(the easy one) on and stuff the tube in and poke the valve stem in straight. Tie the stem so it will not come out. Then soap the rim and bead real good. Put the stem on the bottom and CAREFULLY pry the bead on. Rotate the tire to get the stem straight. Without the core in put about 20# of air in, maybe do it twice if it doesn"t look right. Then blow it up to the correct pressure. Ken tools or a rounded off screwdriver works best for me. Some tubes fit the rim super tight so watch that especially one that is small. On tubeless tires that leak around the rim, such as lawn mowers, I use castor oil on the bead and rim.
 
(quoted from post at 22:32:42 06/17/13) I take those little (big-mouthed fish)turds to the tire shop! Or buy a new tire/rim assembly. Miserable little things.
We all like to save money, but you have a point here.
After a couple of tubes it would have paid to have it done.
The worst ones for me are tubeless lawn mower tires.
I don't usually bother to try with those anymore if the tire doesn't
reach out close to the rim. I take them in.
Sometimes the frugal man spends the most.
 
Go and buy some regular TIRE lube. I used dish soap for years too. Then I got given a half full jug of regular tire lube. It is way slicker than dish soap and stays wetter longer. So the last 5-7 years regular tire lube is all I use. A gallon jug is like $12 and will last me a year almost. So if I save some time changing a tire I am money ahead.

Also clean the cast rims up real good. I mean almost polish the inside of them. The castings have a more porous surface than a regular steel rim. So the tire/tube slides harder on the castings.
 
Get some genuine RuGLYDE, available at most parts stores and I even think it's available on Amazon if they don't.
 

The smaller the tire the sharper the curve and the tougher to pull it over. You would think that smaller should be easier but with tires it is the opposite.
 
I'm kinda worried about all that pressure in a cast iron rim ! Darn things may just blow apart !
 
Got this old tire machine 10+ years ago fore $300. Have changed at least 150 tires on it. One of my better buys.
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