I have a set of 37" H1 tires that I'm going to run on my 77 K20. I'm having issues getting the run flats out. I'm using my sawzall and its killin' the battery before I make any good progress. Is there a trick to get these out easily, or am I just gonna have to take my time and keep recharging the battery?
CK5
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Removing Rubber Runflats
- Thread starter GIJoe4500
- Start date
?!?
What is wrong? I have a set of 37" Hummer tires. Runflats are still in them. Not using the H1 beadlock rims. I want the rubber runflats out.
I gottcha now. no rims but runflats are still in the tires... Hmmm, not 2 piece like the Mag ones?
resurrected_jimmy
1/2 ton status
Three healthy rachet straps, a tankers bar and some grease.... Start with a rachet strap around the middle and as it compresses add a strap towwards either end. The runflat can be compressed almost in half.
chulisohombre
1/2 ton status
this is the exact method we used in the army.i was reading down thinkin i was surprised noone got this yet.one in the middle will squish it together,then second over lapping lengthwise will almost fold it over in half again enough to get tanker bar inbetween and pry out tire enough for runflat to pop out.good luck.it takes a couple of times to get good at it.
When I was trying to get the runflats out of my 37's, a friend of mine suggested this method. We tried for a few hours and didn't get anywhere. Later he told me that they always destroyed the tire with this method, or that the tire was already junk...not what I wanted to hear (glad it didn't work for me either).
I ended up using a big cutoff wheel (7" I think) on my 4.5" angle grinder. About 5 minutes per runflat and it was out. I had to take the guard off of the grinder though. And don't think for a minute that your Harbor Freight one will last. It was giving my DeWalt a hard time (mostly because of the larger disc...and the rubber).
One thing I noticed once I got them out was 2 of the 5 had a larger shoulder on them. I don't know why, but they were wider/heavier.
use a engine hoist with the tire under the legs, it works like a charm you can also install the runflats by the same method
chulisohombre
1/2 ton status
the runflats had 3 designs.magnesium for the bias ply.2 piece and one piece rf for the bias tires.maybe there were 4 since i havent been in for 10 yrs.
and i just got 4 used tires with tons of grease in them i spent 1 hr removing to mount and not have balence problems. 
so the straps and lube and prybar must work. 
so the straps and lube and prybar must work.
resurrected_jimmy
1/2 ton status
During my first deployment we couldn't get built tire/rim assemblies. We used this method to pull the runflats and install them in the new tires and put them back on the rims. I've done it many times this way. It akes right at 1 hour to break down a HMMWV rim pull the run flat and reinstall a new tire using hand tools.
chulisohombre
1/2 ton status
id say one hr total is very good as far as brakedown and remounting.with two people on it we could do a couple an hour in the field.
