I'm in the process of rebuilding a chain drive koenig winch and last
night startedlooking at reinstalling seals and bearings. I'll be picking
up a chain, new sprockets today and all but the dog clutch shifter fork
at the machinist's tomorrow. The chain case contains a couple of oil
seals, one for the dog clutch shifter shaft, and one for the input shaft
from the crank. These are simple cup shaped metal/rubber seals. Where
each of them fits, there appears to be enough room to double them up
because they are thinner than the original seals, but it looks as if when
I do this, there will be no space behind the seal. The inner of the two
oil seals will rest up against the case, inside the hole in which the
seals seat. Is it necessary to have a space behind the seals between the
seal and the housing? When I pulled the old seals, there was a space.
Is it a bad idea to double the seals up? These seals are both at the
lowest point of teh chain case, so they will be submerged at all times
and so I'd like to have the "insurance" of two seals if there is a
benefit to doubling them up. There is one more seal on the forward
reverse shifter shaft, and I don't plan to double it up.
Simon (on digest mode)
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