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Old 04-05-2013, 10:09 AM   #23
Ben
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City: Clayton, NC
Vessel Name: Silver Lining
Vessel Model: Heritage East 44 / Twin Perkins T6.3544
Join Date: Dec 2007
Posts: 758
Quote:
Originally Posted by Tom.B View Post
the Drive Saver - that red urethane disc

we are out by .012". Spec calls for .010" as a max, so we are just barely outside of that, but we can't see the entire shaft and could be way off down the tunnel. He has recommended that it CAN wait a little while

The little voice says to use it, but at $500 to replace, that seems like a lot for hunk of polyurethane that a 15-year marine mechanic doesn't recommend.

Tom-
Hi Tom,

1. I'd get the cost to true the shaft. .002" out of tolerance should be true-able. Plus once trued, your shaft might likely be within .005"

2. You need your own machine shop. Figure you probably have anyway. You could pull the drive saver, get the material ID, and make your own with a decent lathe and drill press. You just need the fine dimensions which you can measure with precise calipers anyway. Seems like the drive saver "may have" (quotes because that's my guess) disguised your shaft wobble for a while.

It sounds like the shaft is your primary issue, but close enough to fix.

A bent shaft is no laughing matter.
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