Go Back  Offshoreonly.com > Technical > General Q & A
Another issue!  Raw water pump not lining up >

Another issue! Raw water pump not lining up

Notices

Another issue! Raw water pump not lining up

Thread Tools
 
Old 06-13-2023 | 10:08 AM
  #1  
Thread Starter
Registered
15 Year Member
 
Joined: Feb 2009
Posts: 8,356
Likes: 1,515
From: NW Michigan
Default Another issue! Raw water pump not lining up

Anyone ever have a problem with raw water pump (pulley) not lining up with crank pulley. New dart big m blk. It’s not only out over a 1/16 th it appears the lower portion also needs to be shimmed out slightly further. Being such a short belt I don’t believe there’s much room for error.

I can shim the crank pulley to solve one problem but would have to shim the lower portion of the pump bracket to get close to spot on.

Also anyone happen to have part number for that belt? My internet acting up badly. Was a mark 4 TRS originally

Last edited by getrdunn; 06-13-2023 at 10:17 AM.
getrdunn is offline  
Reply
Old 06-13-2023 | 04:13 PM
  #2  
TomZ's Avatar
Platinum Member
25 Year Member
Platinum Member
 
Joined: Feb 2001
Posts: 4,295
Likes: 1,457
From: Virginia Beach
Default

Sounds like the mounting bosses on the block are machined a little thick. No real answer outside of shimming. A picture might help.
TomZ is offline  
Reply
Old 06-13-2023 | 04:48 PM
  #3  
Thread Starter
Registered
15 Year Member
 
Joined: Feb 2009
Posts: 8,356
Likes: 1,515
From: NW Michigan
Default

Originally Posted by TomZ
Sounds like the mounting bosses on the block are machined a little thick. No real answer outside of shimming. A picture might help.
I still haven’t been able to renew membership cause I got thrown to the curb by PayPal.
getrdunn is offline  
Reply
Old 06-13-2023 | 07:48 PM
  #4  
Registered
15 Year Member
 
Joined: Aug 2010
Posts: 1,384
Likes: 565
Default

Originally Posted by getrdunn
I still haven’t been able to renew membership cause I got thrown to the curb by PayPal.
You don't have to be a paying member to be able to upload pictures.
cheech is offline  
Reply
Old 06-13-2023 | 08:11 PM
  #5  
seafordguy's Avatar
Gold Member
15 Year Member
Gold Member
 
Joined: Jun 2006
Posts: 5,119
Likes: 960
From: Seaford, VA
Default

Is this a V-belt setup? If so is the flange pressed on the right distance?

seafordguy is offline  
Reply
Old 06-14-2023 | 08:02 AM
  #6  
Wally's Avatar
Were doomed!
25 Year Member
Charter Member
 
Joined: Oct 2000
Posts: 7,097
Likes: 1,395
From: Chicago, IL
Default


If its this stye bracket, you can loosen the screw clamping the pump snout and move it around to align up the pulley...if its the stamped style with no adjustment, then either your pulley position has changed on the pump shaft and needs to be shifted....or bracket is bent.....or you need some spacers/shims
__________________
-Wally

Money can't buy happiness, but it can buy horsepower. And I've never seen a sad person hauling a$$!
Wally is offline  
Reply
Old 06-14-2023 | 11:30 AM
  #7  
Registered
5 Year Member
 
Joined: Mar 2020
Posts: 372
Likes: 182
From: East Tennesseee
Default

Welcome to the world of High Performance Aftermarket junk. It's all to spec until it isn't. Just shim or trim as needed. I'd trim the pump bracket to move it back before I'd shim out the crank pulley. (Unless you make a shim that matches the base of the pulley.) You may get lucky with the bracket by trimming part of it and leaving the other point alone to get it trued up
Smitty275 is offline  
Reply
Old 06-14-2023 | 08:28 PM
  #8  
seafordguy's Avatar
Gold Member
15 Year Member
Gold Member
 
Joined: Jun 2006
Posts: 5,119
Likes: 960
From: Seaford, VA
Default

If it's the style Wally posted Trash them and use the other style. I smoked 2 sets of bearings in BRAND NEW Hardin SS pumps two years ago because when you tighten them down if you get the snout even a couple thousandths out of round you're screwed.

Honestly man, if it's a V-belt and only out a 16th or less I'd run it and lose sleep over something else....
seafordguy is offline  
Reply
Old 06-15-2023 | 06:04 PM
  #9  
Thread Starter
Registered
15 Year Member
 
Joined: Feb 2009
Posts: 8,356
Likes: 1,515
From: NW Michigan
Default

Originally Posted by Wally

If its this stye bracket, you can loosen the screw clamping the pump snout and move it around to align up the pulley...if its the stamped style with no adjustment, then either your pulley position has changed on the pump shaft and needs to be shifted....or bracket is bent.....or you need some spacers/shims

That did it. Tks. Never ran into the problem before and didn’t realized that bolt was an adjustment/set bolt. The other alignment was my bad eyes. After checking further with a straight edge and feeler gauge they were perfectly parallel. All good. Tks again
getrdunn is offline  
Reply

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.