User Tag List

Thanks Thanks:  0
Likes Likes:  0
Results 1 to 4 of 4
  1. #1
    Join Date
    Aug 2016
    Location
    bc
    Posts
    6
    Thanks (Given)
    0
    Thanks (Received)
    0
    Likes (Given)
    0
    Likes (Received)
    0
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Looking for rebuild advisor 1998 200 edits magnum mariner

    Good day all, got a 1998 200 eco mariner magnum.
    Four cylinders close to 120 psi , fifth at 112 and the sixth one at 70 psi
    Pulled the head and cylinder walls one all three look ok
    Top piston (#5) has excessive piston slap and there is metal piled on crown edge piston. Cylinder has no visible damage , got a couple questions if anyone can help

    1) These cylinders look like sleeves , are they sleeves and changeable?
    2) can these cylinders be bored out or are they nicasil?
    3) Twenty year old motor , wondering if con rod bearings and mains should be done while we got it apart?
    4) Can just one piston be replaced if the bore with the damaged piston passes micrometer checks compared to the other cylinders?
    5) Can these cylinders just be honed, reringed and change out the one bad piston?

    I have rebuilt sled motors, car engines but never a outboard. I do have a friend who owns a marine repair shop and said he would help if I need it.
    Retired and I have limited funds
    any advice is appreciated
    thx

  2. #2
    Join Date
    Sep 2001
    Location
    Pekin, IL
    Posts
    7,952
    Thanks (Given)
    220
    Thanks (Received)
    293
    Likes (Given)
    1201
    Likes (Received)
    1682
    Mentioned
    4 Post(s)
    Tagged
    0 Thread(s)
    Yes, yes, look at em and decide, yes, and yes.

    Rock
    Team Junk

    No sparkling wiggles in here, only dump truck grinches.

    "Screamin Heathen"

  3. #3
    Join Date
    Apr 2001
    Location
    Brookeland , Texas 75931 North of Jasper
    Posts
    11,682
    Thanks (Given)
    3
    Thanks (Received)
    106
    Likes (Given)
    10
    Likes (Received)
    605
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)

    I’d Bore all 6 .015” over to clean up 6 new pistons ALL new bearings and TDR reeds all new hoses and tygon vent lines ... JMO
    Jay @ JSRE
    Jay @ JSRE

  4. #4
    Join Date
    Aug 2016
    Location
    bc
    Posts
    6
    Thanks (Given)
    0
    Thanks (Received)
    0
    Likes (Given)
    0
    Likes (Received)
    0
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Thx for the advice, boring out makes sense seeing as its all apart anyhow

    Quote Originally Posted by Jay Smith View Post

    Id Bore all 6 .015 over to clean up 6 new pistons ALL new bearings and TDR reeds all new hoses and tygon vent lines ... JMO
    Jay @ JSRE
    Good advice thx all

Similar Threads

  1. 1998 Mariner super magnum HP?
    By XstreamVking in forum Technical Discussion
    Replies: 11
    Last Post: 08-19-2017, 03:07 PM
  2. 1998 225 mariner super magnum efi
    By spooly in forum Technical Discussion
    Replies: 6
    Last Post: 02-21-2013, 05:48 PM
  3. 1998 Mariner Magnum EFI ?
    By The Cleaver in forum Technical Discussion
    Replies: 5
    Last Post: 03-23-2012, 08:15 AM
  4. Mercury Tech: '85 Mariner Magnum 150 Rebuild?
    By Water_Dog in forum Technical Discussion
    Replies: 6
    Last Post: 08-27-2010, 07:30 PM
  5. 1998 200 Mariner Super Magnum
    By labdog123 in forum Technical Discussion
    Replies: 15
    Last Post: 01-16-2010, 08:42 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
  •  
Diamond Marine