Go Back  Offshoreonly.com > Technical > General Q & A
Mercury Racing 520 info??? >

Mercury Racing 520 info???

Notices

Mercury Racing 520 info???

Thread Tools
 
Old 02-03-2020 | 07:10 PM
  #1  
Thread Starter
Registered
 
Joined: Jun 2004
Posts: 30
Likes: 0
Default Mercury Racing 520 info???

Looking for some general info on this motor...Google search world is pretty limited

Does the 520 need refreshed at a certain hours? Like the 525
Can the motor be used to build more HP/Upgrades I know CMI makes headers for this application?
Anything good or bad about the motor?

Thanks in advance!!
BeaverJ is offline  
Reply
Old 02-04-2020 | 07:38 AM
  #2  
LS1
Banned
 
Joined: Aug 2017
Posts: 54
Likes: 0
From: Osaka, Japan
Default

Page 46 - Maintenance.
http://download.brunswick-marine.com...8m0087090r.pdf
LS1 is offline  
Reply
Old 02-04-2020 | 08:27 AM
  #3  
Registered
15 Year Member
 
Joined: Nov 2006
Posts: 1,313
Likes: 153
From: Tygart Lake, WV
Default

The 520, 540, 565 all use the same cam as was used in the 525efi.

I like the recommendation every 100hrs or yearly to compression check cylinders.
Ryan00TJ 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.