Re: Marina ZZ bilge pump maintenance kit
eric freedman <kimberlite@...>
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There are a number of insertion rubbers available made of different rubbers.
What type did you use? What thickness did you use for the diaphragm and the flapper valves?
Kimberlite Amel Super Maramu #376
From: main@AmelYachtOwners.groups.io [mailto:main@AmelYachtOwners.groups.io] On Behalf Of Danny and Yvonne SIMMS
Sent: Wednesday, September 11, 2019 11:45 PM
Subject: Re: [AmelYachtOwners] Marina ZZ bilge pump maintenance kit
Hi, in the absence of a kit to hand I made copies of the flap valves out of thick insertion rubber. This a fibre reinforced rubber sheet. I found the replacements tended to take a curve and not seal well. I got about 5 years out of the ones I made. I have just installed a new diaphragm I made out of a suitable thickness insertion rubber sheet. I punched the centre hole, put it on the shaft, closed the pump on to it, held it there while I drilled the holes. Then bolted it up and trimmed around to outer size. Working well. I made a second while I was at it to put in spares. I have been carrying the insertion rubber sheet as spare for some years. If I get premature failure (which I doubt) Ill buy the replacement
I could have bought one first up but I enjoy the process.
Cruising again at last. At Volivoli, Viti Vevu Fiji. Had two magnificent dives with Wananuva dive this morning. Wow.