Logo
Results 1 to 9 of 9
  1. #1

    Default Carbon build up evinrude 115

    In the process of fixing a leaking head i find the pistons have a consistent carbon buildup.

    Should I work to remove or leave alone. Since iI have the heads off is there any issue and how would this be accomplished.

    This is a 1992 with best guess 400 hours total run time.

    Seems to run fine and no issues getting to 5500 rpm. Open to any thoughts...Click image for larger version. 

Name:	head 2.jpg 
Views:	22 
Size:	452.0 KB 
ID:	25529

  2. #2

    Default Re: Carbon build up evinrude 115

    Quote Originally Posted by flyingg103 View Post
    In the process of fixing a leaking head i find the pistons have a consistent carbon buildup.

    Should I work to remove or leave alone. Since iI have the heads off is there any issue and how would this be accomplished.

    This is a 1992 with best guess 400 hours total run time.

    Seems to run fine and no issues getting to 5500 rpm. Open to any thoughts...Click image for larger version. 

Name:	head 2.jpg 
Views:	22 
Size:	452.0 KB 
ID:	25529
    Here is another close up pic of the piston, both have the same amount and pattern of build up
    Click image for larger version. 

Name:	head 1.jpg 
Views:	22 
Size:	430.9 KB 
ID:	25530

  3. #3
    Join Date
    Sep 2010
    Posts
    20,718

    Default Re: Carbon build up evinrude 115

    Normal.----No need to do anything.-----Heads all warp.----Resurface it before installing the new head gasket.

  4. #4

    Default Re: Carbon build up evinrude 115

    Quote Originally Posted by racerone View Post
    Normal.----No need to do anything.-----Heads all warp.----Resurface it before installing the new head gasket.
    Good to hear, once everything is back together, after head is resurfaced would anyone recommend a treatment like seafoam?

  5. #5
    Join Date
    Apr 2010
    Posts
    4,947

    Default Re: Carbon build up evinrude 115

    OMC Engine Tuner. Follow directions on the can.

  6. #6
    Join Date
    Nov 2011
    Location
    tennessee
    Posts
    4,775

    Default Re: Carbon build up evinrude 115

    I recommend to my customers to use either the XD50 or a good quality oil and carbon fuel additive such as Carbonguard or Quickleen....The XD50 has the carbon cleaner mixed in.
    Pappys Sales and Service
    Owner and Factory Certified Technician
    Former racer KDBA (Kentucky Drag Boat Association)

  7. #7
    Join Date
    Sep 2010
    Location
    Jersey Shore
    Posts
    6,036

    Default Re: Carbon build up evinrude 115

    Quote Originally Posted by faztbullet View Post
    I recommend to my customers to use either the XD50 or a good quality oil and carbon fuel additive such as Carbonguard or Quickleen....The XD50 has the carbon cleaner mixed in.
    2x's on this.... Stop using cheap wally world oil in your engines....
    Chris
    Dockside Marine Services
    Jersey Shore.
    Mercruiser/Mercury Certified
    Let the insanity begin.

  8. #8

    Default Re: Carbon build up evinrude 115

    thanks for the recommendation, so if using XD50 no need for additional carbon cleaner or should you still add additional

  9. #9
    Join Date
    Nov 2011
    Location
    tennessee
    Posts
    4,775

    Default Re: Carbon build up evinrude 115

    Start running some CarbonGuard in the fuel a couple of months before you plan and storing it it....
    Pappys Sales and Service
    Owner and Factory Certified Technician
    Former racer KDBA (Kentucky Drag Boat Association)

Similar Threads

  1. Replies: 6
    Last Post: 05-19-2017, 10:26 PM
  2. Carbon build up on cylinder
    By rainbow988 in forum Johnson Evinrude Outboard Archive
    Replies: 1
    Last Post: 09-20-2009, 05:50 PM
  3. Carbon build up
    By 67hat34c in forum Crusader Marine Archive
    Replies: 19
    Last Post: 04-02-2009, 01:40 PM
  4. Carbon Build Up
    By evinrude395vs in forum Johnson Evinrude Outboard Archive
    Replies: 10
    Last Post: 03-01-2009, 10:28 PM
  5. Carbon build up
    By skipper_who in forum Mercury Mariner Outboard Archive
    Replies: 14
    Last Post: 09-14-2008, 01:18 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •