Another Head Scratcher.! for which I would ask for some experienced opinion.
Assembling the Driveside Bearing Seal, I tapped it in, but it went way beyond the surface of the crankcase.
The sketch attached illustrates my issue.
The depth of housing in which the seal can be pushed is 7.57mm before it is hard against the bearing outer (in my case an NJ206)
The Seal thickness is 4.56mm, which means the seal outer edge can be placed about 3mm below the crankcase outer surface. This does seem odd.
Given that normal practice is to pein over 4 spots on the circumference of the crankcase, it would seem that I should just fit the seal flush with the crankcase, which means that the seal falls 3mm short of reaching the bearing.
As you can see, the bearing is fully home against the crankcase.
It suggests that the seal may cant over and not remain perpendicular to the crankshaft axis.
I don't seem to remember thinking that this was an issue in the past.
I propose to seal it in with Hylomar Gasket Sealer and mounted flush with the crankcase outer surface, and pein the 4 spots as normal. I had fitted the old seal, which was all neoprene as it had only a few miles on it, but removed it to study the issue.
The new seal is all metal cased, so should centre better.
Can I then assume that the seal will remain perpendicular (vertical) by means of the metal seal casing and the centering action of the distance piece which runs on the inner of the seal?
Is all this normal?
Col