Is it stiff and does it spring back to its shape quickly?
The seals should never be installed before the crank and case halves are assembled. If they are, remove them. IMHO, this is a flaw in the kit.. The reason being is that a new seal puts enough drag on the crank that you will not know if you have the crank properly centered and the side load on the bearings released.
I haven't tried installing the crank after the seals have been installed like in this kit. I plain on trying it with the seals in first just to see but I was planing on using oem seals anyway. I figure when the seal gets to the step on the crank I would run something around the seal lip to help it go over the step on the crank while pulling the case together. If it works or not I'm replacing them anyway. As far as heat. I would use a heat gun and an infrared thermometer and I think the seals would be OK as long as you keep it under 220°. That should be plenty. And not damage the seal.
That seal puller will work just be careful when you pry it out not to leverage the screwdriver against the case opening. It will dent.
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its 44 in my areaAs a note, you can purchase the entire gasket and seal kit from Stihl for about $30. So don't buy just seals. It's likely cheaper to order the entire "set of gaskets".
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