Crank truing/alignment

[NN2]

I want to know how a crank is aligned and trued. Not that I am going to do it myself but like to know how things are done. If it's out of alignment, what does a builder do to the crank? Just curious.

[deckheight]

The crank is placed on a fixture or V-blocks resting on the bearings, indicated and then smacked around with a mallet until it is within spec... Real high tech! :biggrin: :biggrin:

I am on dial up so I didn't watch the video in the link, but the description sounded pretty good and mentioned "phase" for a twin cylinder.

 

 

http://www.greenhulk.net/forums/showthread.php?t=38113

[NN2]

The crank is placed on a fixture or V-blocks resting on the bearings, indicated and then smacked around with a mallet until it is within spec... Real high tech! :biggrin: :biggrin:

I am on dial up so I didn't watch the video in the link, but the description sounded pretty good and mentioned "phase" for a twin cylinder.

 

 

http://www.greenhulk.net/forums/showthread.php?t=38113

 

Thanks a lot! Hammer and chisel, no problem :biggrin: I didn't watch the video because I didn't feel like registering to be a member but the description made plenty of sense to me. Very similar to indicating parts when turning. I never realized that a crank was that easy to change run out on.

[deckheight]

Didn't know about "joining" Greenhulk... Try this link, looks like the same video. I took the time to load it on dialup. If you have never trued a twin (or triple like the video) it is worth watching.

http://www.slednutz.com/showthread.php?t=36