Help on setting bead on car tire - Steve Saunders Goldwing Forums

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post #1 of 35 (permalink) Old 03-28-2011, 07:21 AM Thread Starter
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I decided to go over to the other side with a Federal FORMOZA FD2 175/60 R16 82H BSW for my 1500. Everything I have been reading on here, not the least of all money, convinced me to give it a try.

I mounted the tire myself (a bit of a struggle with just spoons) and got to setting the bead and it just will not fully seat on 1 side. I have 100 lbs. pressure in there and it still will not seat. I'm using a ratchet strap around the middle and valve core removed. I even sprayed in a little soapy water to no avail.

Another potential problem I spotted was that the old tire measured 6.375" (mounted) and the new tire measured (7") unmounted. It has always been tight to get the 6.375" MT out of there and I'm wondering if that is an issue with the CT.

My immediate trouble is to get that bead seated. Sticking 100 lbs. in it is making me nervous about explosion so please don't suggest lighter fluid. I'm hoping someone has a little trick I'm missing. I know this must be somewhat of an issue as I saw that Rudy had his up to 90 lbs. to seat. Thank you,

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post #2 of 35 (permalink) Old 03-28-2011, 08:08 AM
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Lube the bead good and then try bouncing it off the floor (in a safe place and keep your hands out of the way) or putting it against a wall and whack the tread area with a sledge hammer. I have done this method successfully on stubborn tires.

I have seen an Internet video of someone squirting a little lighter fluid inside a tire and then throwing a match on it - poof, tire mounted itself. I have no experience with this method of tire mounting.
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post #3 of 35 (permalink) Old 03-28-2011, 08:10 AM
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The 'soapy water' may be too diluted.

Try pushing the bead that won't seat in towards the centre again, apply a healthy shot of WD40 on both rim /tire bead, then tighten up on the ratchet strap and try again.

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post #4 of 35 (permalink) Old 03-28-2011, 08:23 AM
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Using bead lub is the recommended way. Have used either lots of times with many heart stoppingmoments but never ona bike wheel. 100 psi is way to high also.

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post #5 of 35 (permalink) Old 03-28-2011, 09:20 AM Thread Starter
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Had the tire and rim sitting upstairs behind sliding glass door in the sun trying to warm it up. Another possible big mistake I made was I used bead sealer on it. It makes kind of a rubber cement kind of seal. That may be helping to hold it back along with cold temperatures in the garage.

I just picked up one of those air chucks that clips onto the valve (rather than have my jugular near it when it blows).

My plan is now to clean off the tire sealer on that section of the bead and to lube it up real good and give it another go. Thank you guys

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post #6 of 35 (permalink) Old 03-28-2011, 09:31 AM
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I've got no C/T to M/C experience, but at 100psi... just reading this is making me think twice about ever doing it in the cold.
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post #7 of 35 (permalink) Old 03-28-2011, 09:36 AM
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Sounds like he's getting the beads to seal to get the pressure to build..... beads just won't pop. Give it a shot of wd40 and it will go. Shouldn't need to worry about the tire slipping on the rim if it seats that hard.

Don't want a deal with alot of flibiddy-flab or mumbo-jumbo...........

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post #8 of 35 (permalink) Old 03-28-2011, 11:05 AM
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The tire has to slide across the inner edge of the wheel to seat properly and the sealer is probably creating too much friction. Clean the bead sealer off and just use tire lube, silicone or soapy water.
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post #9 of 35 (permalink) Old 03-28-2011, 11:19 AM
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I thought I read sometime ago that soapy water will cause the rims to pit?

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post #10 of 35 (permalink) Old 03-28-2011, 11:44 AM Thread Starter
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Yeah I read the same thing about soapy water causing the rims to pit and I usually only use it for slipping the tires on and off and checking for leaks.

In conclusion:

1. WD40 is what I believe did the trick (beat my soapy water)
2. I think warming the tire and rim also assisted (in sun). I wound up going into my basement to work on seating it. I think garage at 40F may have been a little too cold when it is that tight.
3. It did not push out (pop) until I had almost 100lbs on it.

My other question about the width I saw the answer to once the tire was inflated. I Measured my old Metzler 880 at 6.375" wide and once the CT was inflated it was at 6.25" (1/8" thinner).

Gentlemen, thank you very much for your help.

Keep it Shiny Side Up

Jim

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