water-wheels
Recruit
- Joined
- Jun 8, 2004
- Messages
- 5
Hi,<br />I have compression loss in #2 of my V-4 Johnson 115HP OB. 3x 125, #2 only 50. Fuel OK, sparks OK.<br />Considering rebuild. Have not opened the engine yet, but I forsee to find a broken piston ring or so, with:<br />1) no damage to the cylinder wall, or<br />2) damage to cylinder wall.<br />Cause? Oil feed? Who can tell me. Engine has 40 hours on it, no leaks, looks like brand new!<br />Option 1: Can I just replace the ring, and should I replace all rings (other pistons) as well? Honing recommended? What else?<br />Option 2: Drastic honing and maybe OS piston.<br /><br />First, I need to know what caused this, to avoid it happen again. Than, I need a good source for parts. Finally, I need a good service manual or info on what I can expect when taking it apart, and putting it back together again. Torques, timing, etc. <br /><br />Thanks in advance!<br />Rob
<br /><br />This forum is for non-repair topics.<br /><br />I will move this to Johnson Troubles.<br /><br />Good luck.