TinBoats.net
The original aluminum boat site!
Forums
New posts
Search forums
Blog
What's new
New posts
New media
New media comments
Latest activity
Media
New media
New comments
Search media
Members
Current visitors
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Forums
Boats
Motors
Crankshaft/Piston Binding Problem
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Help Support TinBoats.net:
This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
Message
<blockquote data-quote="macawman" data-source="post: 462373" data-attributes="member: 23375"><p>I have been rebuilding my 1956 Johnson 10hp from top to bottom over the winter as time permitted. I got the crankcase cover installed today and ran into an issue when trying to rotate the crankshaft. Upper piston will rise in the cylinder when the crankshaft, but binds when the top of the piston is still 3/4 inch short of TDC. Same thing when the crankshaft is rotated the other way. The same thing happens with the lower piston. </p><p></p><p>Any suggestions on what to look for when I pull the crankcase cover off again?</p></blockquote><p></p>
[QUOTE="macawman, post: 462373, member: 23375"] I have been rebuilding my 1956 Johnson 10hp from top to bottom over the winter as time permitted. I got the crankcase cover installed today and ran into an issue when trying to rotate the crankshaft. Upper piston will rise in the cylinder when the crankshaft, but binds when the top of the piston is still 3/4 inch short of TDC. Same thing when the crankshaft is rotated the other way. The same thing happens with the lower piston. Any suggestions on what to look for when I pull the crankcase cover off again? [/QUOTE]
Verification
Post reply
Forums
Boats
Motors
Crankshaft/Piston Binding Problem
Top