Jump to content
Sign in to follow this  

Tight crank after reubild?

Recommended Posts

Rebuilt crank with pro x rod,bearing pin, and hot rods crank bearings, pressed bearings into case and put the crank in the freezer and the case in the oven at 250 for 15 minutes. Slid right in and tightened up. Then I put the cases back together and everything went in smooth until when we snugged the case bolts and the crank is tight not rediculasly tight just enough to cause concern. Input would be helpfull

Share this post


Link to post
Share on other sites

Rebuilt crank with pro x rod,bearing pin, and hot rods crank bearings, pressed bearings into case and put the crank in the freezer and the case in the oven at 250 for 15 minutes. Slid right in and tightened up. Then I put the cases back together and everything went in smooth until when we snugged the case bolts and the crank is tight not rediculasly tight just enough to cause concern. Input would be helpfull

06kx450f* forgot to add that

 

 

It's probably just not centered perfectly and sitting a little tighter to one side vs the other.  I might get roasted for this, but you should just be able to tap it fairly lightly on either the mag or drive end to center it up and you will see it free up :thumbsup:

Share this post


Link to post
Share on other sites

DO NOT TAP ON THE CRANKSHAFT!

 

You need to pull the crank through the bearing.  Find a piece of pipe that will fit over the crank and rest on the inner crank bearing race.  Cut it to a length that will allow you to use the nut/bolt on the end of the crank to pull the crank through the bearing.  Put washer on pipe, thread nut/bolt on, and tighten to pull crank through. 

  • Like 2

Share this post


Link to post
Share on other sites

Another alternative is that you assembled the crank or trans incorrectly... washer on the wrong side of the case half.  BTDT. 

 

Check all your dimensions. :prof:

Share this post


Link to post
Share on other sites

DO NOT TAP ON THE CRANKSHAFT!

 

You need to pull the crank through the bearing.  Find a piece of pipe that will fit over the crank and rest on the inner crank bearing race.  Cut it to a length that will allow you to use the nut/bolt on the end of the crank to pull the crank through the bearing.  Put washer on pipe, thread nut/bolt on, and tighten to pull crank through. 

 

 

 

Yes that works really well, so long as the main bearing is fully seated within the case:

 

 

P3220075_zps687657e2.jpg

  • Like 2

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Reply with:

Sign in to follow this  

×