J/30 Class Association Forums J/30 Forum The Boat, Sails and Equipment Prop shaft

Looks like I may have a slightly bent prop shaft. I couldn't find any details about them. Mine, on #130, is 3/4" dia, but don't know how long. I'm wondering if there were different lengths in production...

I emailed Waterline & got a very speedy response. According to them the original build sheet spec'd shaft was 1" dia by 46 3/4" long with a brass coupling.

I've asked them for a replacement price, and sure to get a response soon.

1" shaft was an little known option starting about #275 when they realized that the 3/4" was a bit light, and then became standard toward the end of the #400s. When I was a kid ... 50 years ago ... I had job straightening pump shafts in a hydraulic ram device ... after we had run them through a hardening cycle. You might check with a machine shop to see if they can do it as it was a pretty simple operation.

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I had my prop reconditioned by Martec years ago. They sent the shaft to be straightened to a machine shop. Think I paid $100 for the straightening $400 for the prop reconditioning.

If you can't get it straightened several years ago I had a new 3/4 inch prop shaft made up by the yard. They just copied the old one. It was about $185 in 2009. Add another $100 for a new shaft coupling.

Good luck