Johnson 225HO rebuild.......

Faztbullet

Supreme Mariner
Joined
Mar 2, 2008
Messages
15,930
225cowl.jpg Here are pics of a customers motor brought in for repair. The impeller hasn't been changed"but peed good" and it has been running on hot side. #4 cylinder went down from possible ring locating pin migration and this cylinder will need a sleeve as upper side of exhaust port is broken out. #1 and #2 piston has actually dented/recessed inward from high combustion temps. This motor will receive the water mod to block,6 new WSM pistons,brgs,etc ......

Here is #4
225piston.jpg
Here is #1 with dented center dome..
225piston1.jpg
This is #2 dented center....

225piston2.jpg
Close up of dent....
225pistondent.jpg
 

Attachments

  • 225piston.jpg
    225piston.jpg
    127.3 KB · Views: 0
  • 225piston1.jpg
    225piston1.jpg
    112.4 KB · Views: 0
  • 225piston2.jpg
    225piston2.jpg
    105.1 KB · Views: 0

Faztbullet

Supreme Mariner
Joined
Mar 2, 2008
Messages
15,930
Here is a pic of the little culprit that started this damage...
pisloc.JPG

Here is finger port and exhaust port damage and sleeve is not repairable and will be replaced...
fingerpot.JPGexhport.JPG

Here is piston and it has crack in sidewall and on verge of complete failure.......
piscrak.JPGpis.JPG
 

Faztbullet

Supreme Mariner
Joined
Mar 2, 2008
Messages
15,930
Not this time ...letting Jay do it as think dowel pushed support wall back a tad and may need welding and remachining, Cant see it in pic but there is a little separation between block and sleeve looking in a mirror rearward....
 
Top