Go Back  Offshoreonly.com > Technical > General Q & A
Crank-mounted water pump? >

Crank-mounted water pump?

Notices

Crank-mounted water pump?

Old 10-02-2021, 02:33 PM
  #1  
VIP Member
VIP Member
Thread Starter
 
TomZ's Avatar
 
Join Date: Feb 2001
Location: Virginia Beach, VA
Posts: 2,845
Received 378 Likes on 244 Posts
Default Crank-mounted water pump?

Guys, itís always something.

Getting the Formula back together with closed cooling and itís looking like itíll be near impossible to replace the impeller without pretty much removing everything from the front of the engine.

The best way to tackle this issue is with a crank-mounted pump. The problem Iím finding is that the pumps are made to fit and center on the cast pulleys used on v-belt apps. Volvo has one that bolts to their 8.1 but hose fittings arenít correct.


Anyone got a solution for this?
TomZ is online now  
Old 10-02-2021, 04:51 PM
  #2  
Gold Member
Gold Member
iTrader: (1)
 
1BIGJIM's Avatar
 
Join Date: Jun 2004
Location: Omaha, Nebraska. Boat on the Mighty Mo! Longest river in the USA!
Posts: 1,920
Received 28 Likes on 17 Posts
Default

I have Volvo Pumps. They are so simplistic and simple to change. And there not plastic😎 There has to be a simple way to reduce or increase the hose size and I bet you could even get the parts at Home Depot. So simple to pull hoses off to winterize to drain.

Last edited by 1BIGJIM; 10-02-2021 at 04:53 PM.
1BIGJIM is offline  
The following 4 users liked this post by 1BIGJIM:
cig28 (10-03-2021), h2oboater (10-11-2021), SB (10-02-2021), TomZ (10-02-2021)
Old 10-02-2021, 07:21 PM
  #3  
Registered
 
Join Date: Jan 2006
Posts: 2,737
Received 218 Likes on 125 Posts
Default

why not make and adapter plate.
sutphen 30 is offline  
The following users liked this post:
TomZ (10-02-2021)
Old 10-02-2021, 07:26 PM
  #4  
Registered
 
Join Date: Nov 2003
Posts: 411
Likes: 0
Received 105 Likes on 61 Posts
Default

i have adapted many it is not very hard to mount the pump with 3 bolts and a bit of simple machining the hose rerouting is often tougher
boostbros is offline  
The following users liked this post:
TomZ (10-02-2021)
Old 10-02-2021, 07:30 PM
  #5  
Registered
 
Join Date: Nov 2003
Posts: 411
Likes: 0
Received 105 Likes on 61 Posts
Default

as a note here there is 2 pumps a short and long impeller
boostbros is offline  
The following users liked this post:
TomZ (10-03-2021)
Old 10-02-2021, 09:45 PM
  #6  
VIP Member
VIP Member
Thread Starter
 
TomZ's Avatar
 
Join Date: Feb 2001
Location: Virginia Beach, VA
Posts: 2,845
Received 378 Likes on 244 Posts
Default

Originally Posted by sutphen 30 View Post
why not make and adapter plate.
Iíll probably do that. Was just wondering if anyone had a specific solution or something available to fit.
TomZ is online now  
Old 10-02-2021, 09:50 PM
  #7  
VIP Member
VIP Member
Thread Starter
 
TomZ's Avatar
 
Join Date: Feb 2001
Location: Virginia Beach, VA
Posts: 2,845
Received 378 Likes on 244 Posts
Default

Originally Posted by boostbros View Post
i have adapted many it is not very hard to mount the pump with 3 bolts and a bit of simple machining the hose rerouting is often tougher
Actually, In this case the hose routing will be the easiest. I only have a short run to my trans coolers. The adapter will be the harder part.

Last edited by TomZ; 10-03-2021 at 07:54 AM.
TomZ is online now  
Old 10-03-2021, 06:21 AM
  #8  
VIP Member
VIP Member
 
Join Date: Nov 2005
Location: Wichita, Kansas
Posts: 359
Received 137 Likes on 72 Posts
Default

Sounds like if someone took the time and inclination to design an adapter plate, their would be a market for it..
__________________
Baja 252 Islander
bajaman is offline  
Old 10-03-2021, 07:39 AM
  #9  
Gold Member
Gold Member
 
seafordguy's Avatar
 
Join Date: Jun 2006
Location: Seaford, VA
Posts: 4,539
Received 325 Likes on 166 Posts
Default

Mine are a total pain after my closed cooling install. I had to grind an open end wrench down to get behind the circ pump house to tighten the bolt then to get to the impeller every year I have to pull the pulley off, unbolt the clamp down and then pull it out the back and down. It's awful - just simply awful. I wish I had explored a good electric option (no idea if one exists)
seafordguy is offline  
The following users liked this post:
GailWins (10-11-2021)
Old 10-03-2021, 10:21 AM
  #10  
VIP Member
VIP Member
Thread Starter
 
TomZ's Avatar
 
Join Date: Feb 2001
Location: Virginia Beach, VA
Posts: 2,845
Received 378 Likes on 244 Posts
Default

Originally Posted by seafordguy View Post
Mine are a total pain after my closed cooling install. I had to grind an open end wrench down to get behind the circ pump house to tighten the bolt then to get to the impeller every year I have to pull the pulley off, unbolt the clamp down and then pull it out the back and down. It's awful - just simply awful. I wish I had explored a good electric option (no idea if one exists)
At least you can sit down in front of the engines to work on them. If have about a foot of free space in front of the enginesÖ if itís even that much. Before closed cooling Iíd remove the circulation hose, unbolt the pump from the bracket, remove the bracket, then pull everything forward. It was a ***** but I could remove it in a few minutes. That wonít be the case now.

For electric to work you would need AC to do it efficiently. I think DC would require too much current and burn up quick. For grins I did a search on this and found that while it ďcouldĒ work for low rpm solutions (a guy was running his 1500 rpm Perkins diesel powered trawler with a bait well pump) others couldnít make it work because of volume issues.
TomZ is online now  

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.