I'll preface this saying that I'm a lazy and cheap
, meaning that I look for an effective solution that is easy and inexpensive, and I've been around a lot of mechanical stuff... If it were mine, I'd be looking at:
1. Repositioning the seals - adding a shim behind the seal to move it to a new place on the shaft - if there is room. Result is shafts with grooves that will get new grooves years from now. (I'm interested in the discussion about shimming the shaft, but, as others have said, I'd have to know what the arrangement is)
2. Chrome plating or metal spraying then grinding. Both are well accepted common practices. I agree with the shop that wouldn't quote it until they saw them, respect that as a sign of a good shop. End result is shafts better than new.
Sleeves work fine in safe environments, but with one side exposed continuously to sea water, I'd be very concerned about galvanic action or bonding agent (glue) failure or cutting the seal during installation
, etc, etc. I'd consider this a "get-home" solution...
#1 should be easy to investigate - is there room for the seal to be further out say .015" or .020"? If so, have a shop turn a circular shim.
#2 I'd be calling around lining up shops to take the parts
to for estimates. I'd plan on a day running around, and the possibility of rush charges if in a hurry. Could find the services on the Internet
, but have to ship and "trust" that they will be done right.
Easy for me to say... if it were mine... hope this helps.