Join Date: Apr 2003
Location: Seattle, WA
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Re: Rudder Shaft Seal
Our 1980 C37 may be different from your boat, but regarding the rudder shaft seal, we repacked ours about 15 years ago in SD on the way to Mexico with the PTFE flax packing. We also replaced the bolts which were deteriorated. No problems since.
When we dropped the rudder in La Paz I talked to Don Kohlmann, then owner of PSC, and he recommended an Orcot thrust washer below and above the rudder which he sold us. We couldn't fit both so just put the one in the gudgeon for the shaft to sit on. Note, this is the same material for the upper bearing we put in place when we converted to tiller.
There is a thread about all this. Search for: Crealock 37 Rudder maintenance
1980 C37 Yawl