It's a interference fit, so you need the puller if it sticks. I tried like an hour at 250F in a convection oven, licked my finger, touched the balancer and got vapor, so I was like 'that'll do', but I just frustrated myself. Even if the surface temp is 250, the inside can be cooler. 'Soaked' means no internal temperature gradient. Could go hotter, but 250 is toasty in your mitts as it is. 250 is not some magic number that Fritz in stuttgart came up with, its from the recipe that came with my crank seal. If adhered to it works well.

The crank and ID of the balancer should be cylindrical surfaces except for the pin cutouts, and maybe a chamfer at the end. The ID should be maybe .005 less than the OD of the shaft. The rear lip of the crankshaft seal rides on a wear ring which is a light press fit on the shaft. If you want to change the seal while you're in there, I have a puller which may get it off if it's stubborn.

Any burrs on the ID or OD will make your life not very easy. Try knocking them down with a stone and some oil.

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It's hard to

more likely to

concentrate on

have an accident

two things

when you're on

at the same time.

a cell phone.

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