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post #1 of 10 Old 08-18-2010 Thread Starter
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Speedseal MkII

Those of you who are Practical Sailor readers will have already seen this but I've only just received my copy. (Its hard living in the far flung corners of Her Majesty's Empire.)

I've been thinking of installing a Speedseal for some time...since the last plastic bag incident in fact. Methinks I'm happy I waited (wot me ? procrastinate ? oh surely not !!) cos they now have the MKII version which according to the blurb can run dry for up to ten mintues without destroying the impellor. Looks good.

Anyone using one of these things ?

Failing that I'll report back when ours arrives. Just don't hold your breath, we are after all in the aforementioned antipodes so it could take a week or five.

http://www.speedseal.com/SpeedsealLi...estResults.pdf

Andrew B

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post #2 of 10 Old 09-15-2010 Thread Starter
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Ok, received and fitted. Looks the goods. Dead easy to fit.

Interesting point....I wonder whether a cheaper alternative might simply be to swap standard impellor cover screws with knurled head bolts as per Speedseal.

OK so you don't have the benefits of the SS run dry business but even so.

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post #3 of 10 Old 09-15-2010
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One issue is that you have to remove all the screws with a standard cover, but not with the speedseal cover plate. That makes replacing the cover much easier, especially if access to the impeller cover area is limited.

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post #4 of 10 Old 09-15-2010 Thread Starter
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Point taken SD, but even so doing away with the need to use a screwdriver would be an improvement even on a standard cover.

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post #5 of 10 Old 09-15-2010
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True that...
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Originally Posted by tdw View Post
Point taken SD, but even so doing away with the need to use a screwdriver would be an improvement even on a standard cover.

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post #6 of 10 Old 09-15-2010
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I installed the Speedseal Life this past spring. The reason is that the impeller on my boat is brutally hard to get to and it's basically a "done by feel" deal.
The new cover is 3 pieces besides the screws. A brass cover, a washer and a PTFE disk which acts like a lubricant in addition an additional lubricant packet is sent along product. These three pieces fit nicely together but don't really stay snap into place so when your tilting the assembled cover to mount on the pump the parts all slide around. Finally once you have everything tightened up you have to hope everything stayed together and is in the right place. It really made me consider if the older version was a better choice. I also found the printed instructions to be poor. Bottom line is it works as far as a good seal with no leaks. As to the claim of being able to run dry I can't answer.

Welcome to Speedseal Technical Details

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post #7 of 10 Old 09-15-2010
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One of the first things I added to my Westerbeast was a SpeedSeal MKI. With the aft facing cover & tiny screws, it would be very challenging to try to pull the impeller in an emergency situation.

Now I can do it practicably blindfolded

The MKII looks like a good improvement, looks like I'll be looking into a retrofit.


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post #8 of 10 Old 09-15-2010
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We have the Speedseal on our raw water pump (alas, not the new fancy one that Wombat got).

It is somewhat handy, and does make things easier. But because the raw water pump is "backwards" on our engine, it's not as handy as it could be if the pump were turned around so the plate was facing forward.

The new Yanmar 3HM30Fs have rotated the raw water pumps so the plate is forward. That would be a nice set-up with the Speedseal.


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post #9 of 10 Old 09-15-2010 Thread Starter
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Speedseal do offer a retro fit to convert MkI to MkII.

I agree with Brezzin that I'd hate to try and fit the MKII if I couldn't see the housing. Methinks that the older version would be better in this instance.

Andrew B

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post #10 of 10 Old 05-12-2011
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Speedseal supply the grease which secures the bearing discs so that they will not move on assembly - very secure
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