Yikes - if the diver noticed that much end play it might be a lot.. That would take a sloppy transmission or engine indeed. For sure check the shaft and coupling. I assume he verified the prop is securely seated on its taper. You don't mention a thrust bearing so should be able to observe/measure what he's talking about at the dock by marking the shaft and flipping between forward and reverse thrust at the dock - the prop will show you each extremity of the play. you should be able to get a sense of it at least. See how much the engine moves too. I had two fractured mounts and didn't realize it until I was fixing another issue. In an engine or (I would think) gearbox the endplay should be measured in thousandths.
Dave. Message: 5 Date: Sat, 22 Oct 2016 08:43:15 -0700 From: ALAN BERGEN <[email protected]> To: "C&C" <[email protected]> Subject: Re: Stus-List Shaft Play Message-ID: <CABnKnf1p4XpSK1xSdHFaaLvUq0=trrKicvp0AOKy=twcfqw...@mail.gmail.com> Content-Type: text/plain; charset="utf-8" I, too, have a 3gmf. When I had transmission problems (transmission not fully engaging, and I had to go to reverse and then forward) I had to add a shim inside the transmission. That corrected the transmission problem of not engaging properly, which was caused by the "in and out" play. Alan Bergen 35 Mk III Thirsty Rose City YC Portland, OR Hi all, When the dive service cleaned my hull last week, the diver informed me of some in-out play in the shaft. I have a 35-3 with the 3gmf and a dripless seal. My question is what are the common causes for this and is some play normal or am I facing a potentially catastrophic problem. Any advice is greatly appreciated. Thanks, Kris O'Brien S/V Syzygy -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://cnc-list.com/pipermail/cnc-list_cnc-list.com/attachments/20161022/ec275c08/attachment-0001.html> ---------------
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