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Crank Save Pt2 Pics


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#1 coldone OFFLINE  

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Posted April 23, 2013 - 07:51 PM

I had some time tonight to work on it. We left off with it sitting in the vise cooling down after a second application of brazing. I attempted just to fill up the areas that were damaged. In hindsight I should have put a coating on the entire area where the damage was instead of just in spots. I missed a few spots and didnt get enough in others.

 

The first set of pics show the braze and then the file work where i removed the heavy stuff. I filed the heavy stuff off and as it got down to a thin coating, I eased up on the file pressure. I was trying to take small bites so not to damage the shaft.

 

DSCF2970.JPG DSCF2969.JPG DSCF2968.JPG DSCF2967.JPG

DSCF2966.JPG

 


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#2 coldone OFFLINE  

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Posted April 23, 2013 - 07:55 PM

After a the file work, a heavy coating of valve grinding compound was applied to the area. Then the flywheel set down on the shaft and worked back and forth and round and round.

 

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#3 chris m OFFLINE  

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Posted April 23, 2013 - 07:58 PM

Great job! Thanks for the update. That will work just fine. I don't see any reason it won't. :thumbs:



#4 coldone OFFLINE  

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Posted April 23, 2013 - 08:04 PM

I had a few file marks left so another heavy coating of valve compound was applied and the process done again.

 

DSCF2992.JPG DSCF2991.JPG DSCF2990.JPG DSCF2988.JPG DSCF2987.JPG

 

 

Not including the brazing I have about 1hr tied up in the filing and fitting. I know its not a perfect repair but I think that with the lapping, there is more surface area contact than there was originally. I would definitely suggest that the flywheel be lapped in during a rebuild. If there is no warpage to the crank,I think we have an economical way to save a crank. 

 

It will be a while before I am able to test for warpage, but when I do i will post results.



#5 MH81 ONLINE  

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Posted April 23, 2013 - 09:02 PM

Great job, I think that'll do just fine.

#6 Moosetales OFFLINE  

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Posted April 24, 2013 - 01:44 AM

Great job....now I'm off to find Part 1 of this topic. Thanks for sharing.






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