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    FOR SALE 1978 Mainship Mk1 34’

    We are selling our 1978 34’ Mainship MK1. Her name is “ Change of Pace” She is currently winterized inside a high and dry located outside Elkton Maryland just north of the C&D canal. Asking price $42,900 Power: Cummins 6BT 220HP (1025hrs) and Westerbeke 4KW gen-set (39hrs) Lewmar bow thruster...
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    Bottom paint “FILLER”?

    Hello all, I probably should have planned to have the bottom professionally sand blasted then prepped, Too late now. After spending two days scraping loose and accumulated bottom paint I now have a “moonscape”. Some paint held firm but I have dozens of areas with large bare spots up to...
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    Fuel Pressure checks

    Hello Group, Decided to check to output pressure from the lift pump on our Cummins 2000 6BT with 950 hrs. Borrowed a test kit and installed a banjo bolt adapter with a Schrader valve at the end of the solid fuel line before the engine mounted filter. Pressure was 8psi. Manual says .5-10 psi so...
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    Fuel Contamination

    Hello all, First outing of the season this past weekend and had a fuel contamination issue. Fuel tanks were topped off before a final 6.5 hour trip to home port last Fall. No issues on trip home and clear bowl for winterization. I topped off tanks again before storing boat inside for the Winter...
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    Packing gland drip rate and temperature

    Hello all, Please indulge a repeat topic. I've read here about repacking and expectations. I am still looking for more information. I re-packed with new flux and am not sure if my results are satisfactory. I have NO dripping when shut down. When underway at 2000 rpm, which is about 1000 rpm...
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    Enlarging fiberglass hull cutout

    Hi all! I am looking to tap the collective wisdom and experience of the group. What is the best tools and technique to slightly elongate an existing fiberglass hull cutout? I need to make a 23" x 4" vent cutout more like 23 1/2" x 4". I have zero experience with cutting fiberglass and want to...
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    Oil change

    Hello all! Time to do my first oil change since purchasing our boat. The single engine is a Cummins 6BT. And we have a Westerbeke gen-set with same set-up. (See Photo). This may sound like a stupid question, now what? I get that I do not need to suck 18 quarts out of the dip stick tube. Yea...
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    Re-bedding bomar hatch

    Hello all, Sorry if this is a repeat but I found nothing in search. My Bomar hatch is leaking but otherwise in good shape. I figure I'd try re-bedding it. Perhaps the collective wisdom of the group could weigh in with advice. My thoughts, subject to change, are to remove all screws pull hatch up...
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    Clogged diesel tank vent

    Hello all, I suspect my port diesel tank vent is clogged. Does anyone have a suggestion for how to try freeing up the vent from the outside. Perhaps compressed air, a squirt of WD-40 or some other product that won't do any harm. I figure I'd try the easy fixes first in case it's something like...
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    High temperature alarm

    Hello all, New to forum. I've joined this site and others to learn and appreciate the fact that you're willing to take time to help. Just got a 34' Mainship w/ Cummins 6BT 210 hp diesel ( my first diesel and first larger boat). I'm trying to get info. about how to change my two high temp...
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