Go Back  Offshoreonly.com > Technical > General Q & A
525 EFI Max Water Pressure >

525 EFI Max Water Pressure

Notices

525 EFI Max Water Pressure

Thread Tools
 
Old 07-04-2009, 07:50 AM
  #1  
Banned
Gold Member
Thread Starter
 
Elite Marine's Avatar
 
Join Date: Aug 2002
Location: IL
Posts: 5,660
Likes: 0
Received 0 Likes on 0 Posts
Default 525 EFI Max Water Pressure

Anyone know what the max water pressure on the raw water side of a 525 cooling system is?

I would think it wouldnt matter as the water only goes through the exchanger and never touches seals/gaskets etc..

My current set up uses relief valves, but I was just wondering if they are really necessary.
Elite Marine is offline  
Old 07-04-2009, 08:37 AM
  #2  
Gold Member
Gold Member
 
Rage's Avatar
 
Join Date: Sep 2005
Location: Missouri
Posts: 1,987
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by Elite Marine
Anyone know what the max water pressure on the raw water side of a 525 cooling system is?

I would think it wouldnt matter as the water only goes through the exchanger and never touches seals/gaskets etc..

My current set up uses relief valves, but I was just wondering if they are really necessary.
Mercury spec on the sea water pressure for a closed cooling496 is 30-50 psi (5100rpm).
Rage is offline  
Old 07-05-2009, 09:05 PM
  #3  
Banned
Gold Member
Thread Starter
 
Elite Marine's Avatar
 
Join Date: Aug 2002
Location: IL
Posts: 5,660
Likes: 0
Received 0 Likes on 0 Posts
Default

Thank you. Then it was smart of Mr. Zastrow to install reliefs on my 525's!! He sure doesnt look that smart!
Elite Marine is offline  
Old 07-06-2009, 12:44 PM
  #4  
Registered
 
Brad Zastrow's Avatar
 
Join Date: Jun 2001
Location: McHenry, Illinois
Posts: 2,287
Received 79 Likes on 23 Posts
Default

Glad to be of service smart azz.
Brad Zastrow is offline  
Old 07-06-2009, 09:06 PM
  #5  
Platinum Member
Platinum Member
 
Join Date: Jan 2003
Location: Brookfield, Wi.
Posts: 957
Received 3 Likes on 3 Posts
Default

Kirk, What were you getting for pressure at WOT before you installed the reliefs. I'm off the gauge at about 40psi but I've heard that Mercury Racing says that's not a problem. Did I hear wrong? Steve
509 SC is offline  

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 © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.