lateral 110 Posted January 4 Author Report Share Posted January 4 Thanks for all the info guys; excellent coverage of the many variables. Around five years ago launched after a massive rebuild, new hull, new floors, stations,deck, and engine bed.(Of course)All DIM. (With a good mate) Prop shaft checked at machine shop for conformity. Reco'ed kiwi prop by John. Relevant to this,new cutlass bearing, new Duramax ultra X packing, R&D flexi coupler checked, multiple re-alignments initial and in water. Has been excellent to-date. Next to no drip at dock, minimal underway. 3/min. Minimal heating.(Hand stay-on-test) Recently started excessive dripping, so nipped up the stern gland, approx two flats of the hex. Within 5-10mins underway overheated stern gland and MELTED nylon grease feed tube. Abort summer holiday, back to dock and repack. Now its not happy in terms of drip rate/ heat and some new vibration.......so could be any of the above. If new prop shaft, 2205 or 2507? (My keel bolts are 2205) 2507 has to be machined down and polished from 30mm. Quote Link to post Share on other sites
Dtwo 106 Posted January 4 Report Share Posted January 4 Could the change be due to the braid caught on the shaft? Could there be some more braid packed in the aft end of the stern tube? That sh*t would probably just melt into a hard pack and fuse to something... Quote Link to post Share on other sites
Island Time 771 Posted January 4 Report Share Posted January 4 Yep, you need to look at the shaft under the gland. Good time to change to a dripless system..... harrytom 1 Quote Link to post Share on other sites
lateral 110 Posted January 5 Author Report Share Posted January 5 What’s a dripless 1” kiwi shaft seal currently cost? I see Henleys adapt tail of existing gland to take the KSS. Seems to do properly would require removing gland and stern tube and replace with composite water lubed stern log glue in. Not ready for that level of masochism. Have to at least finish HVUS’s land locked ensuite first. Quote Link to post Share on other sites
vic008 11 Posted January 5 Report Share Posted January 5 Google Volvo shaft seal. If I remember about $150. Quote Link to post Share on other sites
Dtwo 106 Posted January 5 Report Share Posted January 5 Another option: http://www.chatfieldmarine.com/shop/Driveline/Shaft+Seals/Blue+Water+Shaft+Seal+-+Standard+Model.html Quote Link to post Share on other sites
Fish 594 Posted January 6 Report Share Posted January 6 Henleys adapted our packing gland for a Kiwi seal. Cant remember the cost, part of the engine replacement. Sudden dramatic change is odd, esp with your level of detail and maintenance. Im suspicious of that braid... Normally things deteriorate slowly with packing glands Quote Link to post Share on other sites
harrytom 262 Posted January 6 Report Share Posted January 6 3 hours ago, Dtwo said: Another option: http://www.chatfieldmarine.com/shop/Driveline/Shaft+Seals/Blue+Water+Shaft+Seal+-+Standard+Model.html recommend Chatfield,bonus if it does leak you can undo the flange and place packing in.Got one about 4yrs ago 1 inch shaft $450??was loking at pps where it relies on 2 flanges pushing together but have read about why they can leak. Quote Link to post Share on other sites
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