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Post Info TOPIC: Johnson F5B-9 raw water pump seal failure


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Johnson F5B-9 raw water pump seal failure


So my Cambria 44 sailboat with a 2013 Beta 60 (work order K29378) was launched today in Antigua.  For the third time in 6 years in the Caribbean the lip seals on the Johnson pump failed with only 700 hours total on the engine.
 
  
 
While I now carry a spare Johnson raw water pump, it is still a huge pain to swap because the  2 of the 4 10 mm hex bolts are very awkward to access.  It is a 2-3 hour job, plus I now need to replace the seals on the failed pump and remove 3 gallons of water from my engine compartment. A huge pain
 
My mechanic here says the Johnson pump uses lip seals that are prone to fail.   The raw water seals on my Northern Lights generator have mechanical carbon-ceramic seals that are not prone to fail. 
 
I am fed up.  I now have to pay for two more days in a marina, plus for help from a mechanic to remove the last two bolts, plus replacement seals, shipping  and labor installing them.  
 
Time for Beta to resolve this poor design.   Is there a better replacement pump?



-- Edited by Cape Sailor on Monday 16th of January 2023 06:14:07 PM



-- Edited by Cape Sailor on Monday 16th of January 2023 06:29:22 PM



-- Edited by Cape Sailor on Monday 16th of January 2023 06:30:08 PM



-- Edited by Cape Sailor on Tuesday 17th of January 2023 05:28:29 AM



-- Edited by Cape Sailor on Tuesday 17th of January 2023 05:29:21 AM

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Posts: 3
Date:

The lip seal on my spare pump just failed after being installed in mid January,
a little over 2 months ago. This pump is a real dog. The lip seal was installed by a professional mechanic in Grenada.

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