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Old 02-04-2012, 08:43 PM   #1
Craig Lewis
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Default Spring shackle welding & rebuilding photos #2

..carried fwd from Spring shackle welding & rebuilding photos #1
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Old 02-04-2012, 09:44 PM   #2
Aerocraft
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Default Re: Spring shackle welding & rebuilding photos #2

Nice job ! Gar Williams
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Old 02-04-2012, 09:44 PM   #3
Jim Parker Toronto
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Default Re: Spring shackle welding & rebuilding photos #2

Craig, you sure do nice work!
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Old 02-04-2012, 11:37 PM   #4
BRENT in 10-uh-C
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Default Re: Spring shackle welding & rebuilding photos #2

Just thinking outside the box here looking at the shaft you are threading it into, would it really matter if you were .002" or .003" off in any direction as long as the shank is back to the correct diameter??
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Old 02-05-2012, 12:40 AM   #5
Craig Lewis
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Default Re: Spring shackle welding & rebuilding photos #2

Quote:
Originally Posted by BRENT in 10-uh-C View Post
Just thinking outside the box here looking at the shaft you are threading it into, would it really matter if you were .002" or .003" off in any direction as long as the shank is back to the correct diameter??
If you keep close tolerances from the beginning it'll pay off.
Sorry about the fuzzy pics but that was before digital (for me)...the pic with the dial indicator reads zero, showing the shaft is true.
If the shaft were .003 off it's gonna spin the threaded end of the journal in an "orbiting" manner and produce a tapered journal...measuring .006 smaller at the threaded end.
You must set up the support in the chuck and take a skim cut for the dial to read off then drill and tap from the tailstock. Theoritically if your never loosen the chuck you can turn shackles all day and it'll stay true (unless you have a jam-up)
I hope this makes sense to someone besides me.
I'm no expert machinist...I just have the basics learned in high school metal shop + twenty years of playing with this old Hurcus 9"
I took the cutting quite slow and easy and used lotsa coolant.
The journals came out within a few thou of each other with little taper.
By the way, I used adjustable Critchley reamers to fit each bushing with it's respective shackle journal. If I did it again I'd use fixed reamers as the Critchley's jammed up on the bushing parting line real bad.
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Old 02-06-2012, 11:04 AM   #6
d.j. moordigian
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Default Re: Spring shackle welding & rebuilding photos #2

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Craig,

That's about the way I saw it. I was going to run the shackle the other way
around, cutting towards the chuck. They look good.

Thanks, Dudley

* OK....I viewed " post #1 ", I understand were your coming from, no dog !
NICE. *

Last edited by d.j. moordigian; 02-06-2012 at 11:11 AM.
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Old 02-06-2012, 04:34 PM   #7
Steve Plucker
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Default Re: Spring shackle welding & rebuilding photos #2

Craig,

Great work!

I must relate what I did 30 years ago in my neophyte days of Model A restoration of the original shackels...

I ark welded my worn shackels, then I carfully used a hand file to get the correct "roundness" of each of the shafts and fit them to the spring bushings.

That was 30 years ago and nock on wood...I have yet to have a problem with them.

HOWEVER...if by what I know now, I would surley do it your way as it is probably the SAFEST route to go.

I have PM'd you.

Pluck
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