Raw Water Pump Replacement Question

[David Godfrey]

Hello all,

I bought a replacement Westerbeke 27A raw water pump (the 37431 that replaces the original) and my question is this:

Is it fairly straight forward to remove the old original raw water pump and replace it with the new?  A simple in and out?

I've googled the conversations and got some info but nothing that really answers my question.

Any tips or tricks?  I'm not overly mechanically inclined so any help would be appreciated.  

David 

NS 30C #145

RNSYS in Halifax Nova Scotia

[Terence Cutts]

Very awkward, very tight, of course very hot, a lot of head banging. Other than that bolts off and bolts on. Beware of the paper gasket, this is not packing material but a gasket be careful not to toss or rip. 

Good luck.

Terry Cutts C.E.T.

NS30 U Phoenix 

Toronto 

647-856-0377

On Jul 22, 2022, at 9:53 AM, David Godfrey <dgodfr...@gmail.com> wrote:

Hello all,

--
You received this message because you are subscribed to the Google Groups "INA Nonsuch Discussion Group" group.
To unsubscribe from this group and stop receiving emails from it, send an email to INA-Nonsuch-Discussi...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/INA-Nonsuch-Discussion-Group/a736ef4e-91a7-4367-9c74-cccadd888a78n%40googlegroups.com.

[Joe Valinoti]

It really depends on how that starboard locker is configured.  Not all 30 C’s or U’s are the same.  My pump will come out in about 20 minutes and takes a little over a half hour to go back in.  (However, I am a retired mechanic) Be advised that the replacement pump may have fittings pointed in a different direction then the original.  My advice to you is to replace every hose you take off with new ones of the approved type.  I’ve added a hose bib fitting to my system as a means of flushing and winterizing.  Enclosed are some photos of mine.

PS – Avoid any 90 deg angles

Joe Valinoti
S/V iL Gatto NS30U #221
Sea Harbour YC
Oriental, NC USA

~~~~~(\_ ~(\_ ~(\_~~~~~~~~~~

[ed.b...@gmail.com]

This thread seems like a good opportunity to bring up the question once again on which way to bend the rubber vanes on the new impeller.  Some have said it matters and others that it doesn’t. Because the vanes will flip to the correct configuration as soon as the engine starts, and the vanes will not be damaged. 

 

Is this question now moot, because it doesn’t matter?  I ask because I will be changing my impeller next week.

 

…..Ed

 

Ed and Marlene Brost

SaSeaCat, NS30322

Sarnia Yacht Club

Ed.b...@gmail.com

519 312-8650

To view this discussion on the web visit https://groups.google.com/d/msgid/INA-Nonsuch-Discussion-Group/93F6099A-E155-44CD-9FCD-B334AAB6E924%40gmail.com.

[bobby.il...@gmail.com]

According to the instructions that came with my impellor it doesn’t matter which way the vanes are bent as they sort themselves out once the engine is turning.  I use an electrical cable tie to compress the vanes as a result some bend one way, some the other.  If I thought the vanes would be damaged by being reversed I’d use a different manufacturer.  I change the impellor every year with the annual maintenance in spring.

 

Bob Illingworth

Nonsuch Luck 30U #367 (GBR1262T)

Moored Titchmarsh marina, Essex, UK; cruising the rivers of East Anglia, and the North Sea.

To view this discussion on the web visit https://groups.google.com/d/msgid/INA-Nonsuch-Discussion-Group/051801d89df1%2488599100%24990cb300%24%40gmail.com.

[BRIAN CAYER]

Well spoken Joe. I will keep it in mind if ever I am blessed with owning a Nonsuch 26-36. I am on the hunt. I like the hose outlet for raw water spray hose?

Brian Cayer

On the hunt in New England

(USA) 

On Jul 22, 2022, at 1:17 PM, Joe Valinoti <joes...@gmail.com> wrote:



To view this discussion on the web visit https://groups.google.com/d/msgid/INA-Nonsuch-Discussion-Group/4AFCAA73A6D44C6B9E037710EC5FE83B%40DESKTOPAL8QCME.

[BRIAN CAYER]

Bob

Always remember to load the impeller arms to rotate into what you are trying to pump, that way it’s right the first time and no correction is needed. The little arms will push the water where it’s needed. Joe might be able to tell you what direction to wind it as you see it.

Brian Cayer

On the hunt in New England

(USA) 

On Jul 22, 2022, at 1:56 PM, bobby.il...@gmail.com wrote:



According to the instructions that came with my impellor it doesn’t matter which way the vanes are bent as they sort themselves out once the engine is turning.  I use an electrical cable tie to compress the vanes as a result some bend one way, some the other.  If I thought the vanes would be damaged by being reversed I’d use a different manufacturer.  I change the impellor every year with the annual maintenance in spring.

 

Bob Illingworth

Nonsuch Luck 30U #367 (GBR1262T)

Moored Titchmarsh marina, Essex, UK; cruising the rivers of East Anglia, and the North Sea.

 

 

From: ina-nonsuch-di...@googlegroups.com <ina-nonsuch-di...@googlegroups.com> On Behalf Of ed.b...@gmail.com
Sent: 22 July 2022 18:36
To: INA-Nonsuch-Di...@googlegroups.com
Subject: RE: Raw Water Pump Replacement Question

 

This thread seems like a good opportunity to bring up the question once again on which way to bend the rubber vanes on the new impeller.  Some have said it matters and others that it doesn’t. Because the vanes will flip to the correct configuration as soon as the engine starts, and the vanes will not be damaged. 

 

Is this question now moot, because it doesn’t matter?  I ask because I will be changing my impeller next week.

 

…..Ed

To view this discussion on the web visit https://groups.google.com/d/msgid/INA-Nonsuch-Discussion-Group/031801d89df4%2459a24f20%240ce6ed60%24%40gmail.com.

[Ron Schryver]

Hi Ed, the vanes will sort themselves out once the engine starts. If you've ever taken the cover off and just jogged the starter without actually starting it you'll notice that

the veins all go in one direction but when the engine stops the shaft can rock back a quarter turn thus causing some of the veins to fall in the other direction. Upon starting again the veins do the proper thing and all line up.

Hello to Marlene.

Regards.......Ron

Ron & Diane Schryver

"Alpha Waves" 1987 NS30U #393

Georgian Bay Midland ON

To view this discussion on the web visit https://groups.google.com/d/msgid/INA-Nonsuch-Discussion-Group/051801d89df1%2488599100%24990cb300%24%40gmail.com.

[BRIAN CAYER]

Ed,

No understanding needed.

Just do it.

Brian 

On Jul 22, 2022, at 4:25 PM, Ron Schryver <ron.sc...@gmail.com> wrote:



Hi Ed, the vanes will sort themselves out once the engine starts. If you've ever taken the cover off and just jogged the starter without actually starting it you'll notice that

the veins all go in one direction but when the engine stops the shaft can rock back a quarter turn thus causing some of the veins to fall in the other direction. Upon starting again the veins do the proper thing and all line up.

Hello to Marlene.

Regards.......Ron

Ron & Diane Schryver

"Alpha Waves" 1987 NS30U #393

Georgian Bay Midland ON

On Fri, Jul 22, 2022 at 1:36 PM <ed.b...@gmail.com> wrote:

This thread seems like a good opportunity to bring up the question once again on which way to bend the rubber vanes on the new impeller.  Some have said it matters and others that it doesn’t. Because the vanes will flip to the correct configuration as soon as the engine starts, and the vanes will not be damaged. 

 

Is this question now moot, because it doesn’t matter?  I ask because I will be changing my impeller next week.

 

…..Ed

To view this discussion on the web visit https://groups.google.com/d/msgid/INA-Nonsuch-Discussion-Group/CAK4sQXhxY8RGSEZLi97ReWVaU_GwZ9nN67bAgydLwNLg_tEw2w%40mail.gmail.com.

[Joe Valinoti]

That hose bib is also useful for a back-up emergency bilge pump.  Shut off the seawater seacock, connect a hose and start sucking.

Joe Valinoti
S/V iL Gatto NS30U #221
Sea Harbour YC
Oriental, NC USA

~~~~~(\_ ~(\_ ~(\_~~~~~~~~~~

To view this discussion on the web visit https://groups.google.com/d/msgid/INA-Nonsuch-Discussion-Group/2FB13EC1-2383-497D-85B3-E7FFE34EA72D%40sbcglobal.net.