Quote:
Originally Posted by macafee2
checked the flange is clean. Did not want to heat in water as that would mean assembling wet so I heated it with a hot air gun.
My fingers are sore from pushing the seal on.
If you think hot water is the answer I'll give it a go, desperation creeping in. Rubber seems very soft, just wondered if there was a bit too much of it. The lip is not very deep.
macafee2
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I honestly dont know, and as mine literally went straight on, it was uneventful, and initially I thought it was too easy. But since the outer rim is just a dust seal, with the fluid seal being inside the piston, I did not worry.
I would not use a heat gun, simply because it is dangerous to you (ie me lol), and there is a potential to melt the plastic/rubber. But if you are confident in doing that, go for it. But make sure the to heat it away from the caliper, as you do not want it to be heated at the same time (as it could expand with the heat too, negating your efforts).
If I recall on mine, (which were the 190 type, but they look similar to the non 190 type), I mounted it onto the piston, pulled the boot inside out, and then slid the piston in. Smeared red grease onto the rubber before turning it back (this was to lubricate the rubber and hopefully reduce tension on the boot as I turned it). Turning the rubber back to its correct position, the rim simply pressed into position without effort.
It was then I thought about it, it went into place, perhaps too easy. But it is only a dust seal and does not have to be fluid tight, I did not worry (nearly 3 years on now, and all seems to have held up well).
The rears were a different story though, being a bit more fiddly. The first set of seals I had, were from BiggRed, which were very tight, and tore as I slid it onto the piston. Comparing them to the Brakesint items, it was obvious the Brakesint versions, were more pliable (which is why I originally suggested you search for the company on eBay).
Make sure the flange is smooth, and doesnt have a slight piece of corrosion or dirt sticking up, as that would be enough to cause it to lift up.