FORUM RULES UPDATED - The forum rules have been updated to continue to provide a friendly and safe environment for our member community. Please take a moment to review the updated rules and our terms of use and privacy policy. Click here for Forum Rules which has links to the 'terms of use' and 'privacy policy'.
In Other News . . .
You will notice a few enchancements to the forums to make your experience better. These include: Email Notifications, Thread Previews, Thread Starter Notation, and Emoji Options on the 'Like' icon. . .
Additionally, the merchant portions of the website have been updated and are now operational. . . . Check out iBoats for all your boating gear.
i have a 85 johnson 115 at full throttle you can hear a slight rattle,you can put your hand on the flywheel and shake it hard and you can hear it rattle a little bit though you cant feel it move at all,is this normal? or is it a problem?
Welcome!<br /><br />The flywheel (crank) will have some movement although there is no spec on how much. If you hear a rattle at speed it may be the pistons losing support from normal wear or they may be losing support from stuck rings. If you havent decarboned in a while it might not hurt to try that. Naturally a compression test is in order before you do anything.<br /><br />Good luck!