1995 Cummins raw water pump

This topic has 5 replies, 3 voices, and was last updated 3 years ago by Tony Athens.

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September 25, 2020 at 5:11 pm #104327

Kurt Luebs
Participant
Vessel Name: Kulas Adventure
Engines: 1995 Cummins 6BTA X2
Location: Woodbridge, Va
Country: USA

Hello, I’m a Cummins newbie. Just bought a 1996 Bayliner 3587 with 2 6BTA 250 Hp engines. I am trying to get to a zero standpoint for all maintenance items that have not been done. The raw water pump impellers are about 2-1/2 years old, so I want to throw some new ones in there and carry some spares. None of the pumps that I see for sale here look like ones on my boat. They have 4 bolts that hold the plate on, and all the ones I see have 3. They are black, so I’m sure they are not original. Can anyone help?

Thanks,

Kurt
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September 30, 2020 at 7:28 am #104589

Tony Athens
Moderator
Vessel Name: Local Banks
Engines: QSB 6.7 550 HP
Location: Oxnard, CA
Country: USA

These are Sherwood 1730’s (99%)–you are up too close .. Get back a few feet and let me “SEE” the entire side of the engine and the plumbing that goes from the pump to ??..

September 28, 2020 at 6:41 pm #104437

Kurt Luebs
Participant
Vessel Name: Kulas Adventure
Engines: 1995 Cummins 6BTA X2
Location: Woodbridge, Va
Country: USA

more info…

These are M2s with CPL 1613 if that helps…

Thanks,

Kurt

September 28, 2020 at 6:39 pm #104434

Kurt Luebs
Participant
Vessel Name: Kulas Adventure
Engines: 1995 Cummins 6BTA X2
Location: Woodbridge, Va
Country: USA

pics and my bad…

Thanks for the replies They really do have 3 bolts on the cover…got down in there today with some good lighting. I guess these are Sherwoods? Will the SMX pumps work for this application? The pumps look pretty new, so I’ll probably start out with several sets of impellers.

Kurt

September 28, 2020 at 10:03 am #104400

Edwin Harvie
Participant
Vessel Name: Merry Kate
Engines: 6BTA 5.9M1
Location: N. Virginia
Country: US

Kurt – 6BTA 250Hp JWAC of that vintage probably uses the Sherwood GC-4 or GC-5 raw water pump (1.5″ hose). Tony’s SMX Super 15 impellers fit them and are better than the original. Pictures would confirm like Tony says.

September 25, 2020 at 7:40 pm #104330

Tony Athens
Moderator
Vessel Name: Local Banks
Engines: QSB 6.7 550 HP
Location: Oxnard, CA
Country: USA

#1—————–Post good pictures of what you are describing so we can “see” the pumps as you see them..

Tony
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