Go Back  Offshoreonly.com > General Discussion > General Boating Discussion
Scored / Grooved Gen 7 Sea Water Pump >

Scored / Grooved Gen 7 Sea Water Pump

Notices

Scored / Grooved Gen 7 Sea Water Pump

Old 05-25-2021, 07:53 AM
  #1  
SB
Registered
Thread Starter
iTrader: (1)
 
Join Date: Nov 2004
Location: On A Dirt Floor
Posts: 11,296
Received 991 Likes on 420 Posts
Default Scored / Grooved Gen 7 Sea Water Pump

There appears to be several repair kits out there with wear plates.

Which have you used and prefer ? Why ?

I am dealing with 1 pump that has wear (a groove) on the body, not end plate.




Last edited by SB; 05-25-2021 at 07:57 AM.
SB is offline  
Old 05-25-2021, 08:15 AM
  #2  
Registered
iTrader: (8)
 
Join Date: Nov 2006
Location: Tygart Lake, WV
Posts: 1,203
Received 36 Likes on 30 Posts
Default

496 brass gen 7 water pump. repair kit for badly damaged pump body. If your brass body is badly grouved and fails to pump. our kit makes pumps work again without buying new pump. Rubber Impellers W/P Mercruiser Impeller Repair Kit $24.95. IMPELLERS W

I've been using these kits since 2014. Once you purchase the wear plate kit you only need to buy the impeller from then on out. My stainless wear plates look great. I change impeller every 2 seasons. 100 or so hours. Impeller looks fine and could easily go a 3rd year.
Ryan00TJ is offline  
Old 05-25-2021, 08:35 AM
  #3  
SB
Registered
Thread Starter
iTrader: (1)
 
Join Date: Nov 2004
Location: On A Dirt Floor
Posts: 11,296
Received 991 Likes on 420 Posts
Default

Thanks Ryan.

I did some reading on those. Some early versions had impeller separation issues. Seemed like it was fixed but on another boat site just this past week, a new impeller of theirs separated.
SB is offline  
Old 05-25-2021, 08:38 AM
  #4  
SB
Registered
Thread Starter
iTrader: (1)
 
Join Date: Nov 2004
Location: On A Dirt Floor
Posts: 11,296
Received 991 Likes on 420 Posts
Default

SInce Iím dealing with just the shaft side end being grooved, wonder if I csn install just that plate with stock impeller ? That doesnít right but worth the question I guess.
SB is offline  
Old 05-25-2021, 09:01 AM
  #5  
Gold Member
Gold Member
 
Join Date: Jul 2008
Location: Delray Beach, FL
Posts: 3,449
Received 383 Likes on 154 Posts
Default

Originally Posted by SB View Post
SInce Iím dealing with just the shaft side end being grooved, wonder if I csn install just that plate with stock impeller ? That doesnít right but worth the question I guess.
No

If you look around there are 2 kits, one has a gasket/shim spacer so you can use the stock impeller. I just kept the shim and replaced this kit every couple years so you can use the stock impellers.

Or say fk it and just buy a new pump housing and reuse the pump cover with the stainless plate.
Keith Atlanta is offline  
Old 05-25-2021, 09:21 AM
  #6  
SB
Registered
Thread Starter
iTrader: (1)
 
Join Date: Nov 2004
Location: On A Dirt Floor
Posts: 11,296
Received 991 Likes on 420 Posts
Default

After not finding anything definitive last night, about gave up and thus figured start this thread, I started another search and just found this - and factory parts !

Mercury-Mercruiser 47-8M0137219 Heavy Duty Sea Water Pump Impeller Kit



Mercury Marine 47-8M0137219 Impeller Kit.

Features:
Number of Blades: 8
Impeller Diameter: 2-5/8"
Impeller Length: 2"

INCLUDES:
(1) - 8M2021987 - Formed O-Ring
(1) - 8M0103389 - 0.030 in. Shorter heavy Duty Impeller
(1) - 8M0072979 - "Overmolded" Inner Wear Plate

Mercury Quicksilver OEM Water Pump Impeller Wear Plate 47-8M0137219 47-8m0120891
Quicksilver 47-8M0137219 Heavy Duty Seawater Pump Impeller KitIncludes shorter heavy duty impeller and over molded inner (front) wear plate for use when the front of the seawater pump impeller housing is worn due to debris.
Fits 2000 & newer MCM V-6 & V-8 (305, 350, 496 & 502 cid) engines with the brass sea water pump excluding Mercury 4.5L & 6.2L models.

Last edited by SB; 05-25-2021 at 10:12 AM.
SB is offline  
Old 05-25-2021, 11:11 AM
  #7  
Registered
 
Join Date: Jul 2010
Location: Evansville, Indiana
Posts: 284
Received 10 Likes on 5 Posts
Default

Originally Posted by Ryan00TJ View Post
496 brass gen 7 water pump. repair kit for badly damaged pump body. If your brass body is badly grouved and fails to pump. our kit makes pumps work again without buying new pump. Rubber Impellers W/P Mercruiser Impeller Repair Kit $24.95. IMPELLERS W

I've been using these kits since 2014. Once you purchase the wear plate kit you only need to buy the impeller from then on out. My stainless wear plates look great. I change impeller every 2 seasons. 100 or so hours. Impeller looks fine and could easily go a 3rd year.

Been trying to get a hold of these guys for weeks. Voicemails and emails with nothing in return. I gave up.
BIGSLOW is offline  
Old 05-25-2021, 11:38 AM
  #8  
SB
Registered
Thread Starter
iTrader: (1)
 
Join Date: Nov 2004
Location: On A Dirt Floor
Posts: 11,296
Received 991 Likes on 420 Posts
Default

Originally Posted by Keith Atlanta View Post
No

If you look around there are 2 kits, one has a gasket/shim spacer so you can use the stock impeller. I just kept the shim and replaced this kit every couple years so you can use the stock impellers.

.
I donít remember seeing that. Could you help me ? Search for this stuff has consumed mega hrs. Lol

Thanks
SB is offline  
Old 05-25-2021, 01:53 PM
  #9  
Registered
 
Join Date: Aug 2010
Posts: 586
Received 87 Likes on 62 Posts
Default

Originally Posted by BIGSLOW View Post
Been trying to get a hold of these guys for weeks. Voicemails and emails with nothing in return. I gave up.
I hit the Louisiana fishing link shown below at the website and at that page get the second snip. Same guy??
The repair kit website has a bunch of dead links and missing photos. Seems poorly maintained.



Last edited by cheech; 05-25-2021 at 01:57 PM.
cheech is offline  
Old 05-25-2021, 01:56 PM
  #10  
Registered
 
Join Date: Aug 2010
Posts: 586
Received 87 Likes on 62 Posts
Default

SB at this point why not the Mercury kit?
Also, did that pump exhibit low water pressure? Or just PM?
I think mine were way worse than that last time I was in them. No pressure issues yet.
cheech is offline  

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright © 2021 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.