Originally posted by Phil Mast
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Grrrrr. I can't get my flywheels true.
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Originally posted by T. Cotten View PostBill!
Phil too!
Put the hammer down slowly, and let us approach this calmly.
Preparation is everything, and hardware with sixty or more years of duress benefits from a little caress:
http://virtualindian.org/10techfly.htm
Tapers can be corrected with a little patience.
But the more they are hammered, the more difficult it will be.
...Cotten
I've read your treatise in VI, it's by far the most detailed explanation I have found on the subject. Thanks for sharing it.
Do you use the crankpin that you intend to use as the "lapping arbor" ?
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Bill!
Whenever possible, I would cross-groove a spent crankpin or mainshaft for the lapp,
and keep the new shafts pristine.
....Cotten
PS: Please note that I use the past-tense, as I have been searching in earnest for years to find a pro to re-open Liberty's motor and chassis departments.Last edited by T. Cotten; 06-12-2012, 09:39 PM.AMCA #776
Dumpster Diver's Motto: Seek,... and Ye Shall Find!
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Update: Since all the prying and banging in the world wouldn't true up these wheels, I decided to use Mr. Cotten's method for lapping the tapers. I saw another method on You Tube but I liked this method better. (plus I didn't have a 1" collet for the mill)
I made a lapping arbor out of an old cankpin and ground some relief grooves into it.
lapping arbor 001.jpglapping arbor 002.jpg
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lapping arbor 005.jpgThe wheel fitted up to the lapping tool. Does it look like it will work Mr. Cotten?
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Bill!
This site is suddenly so screwed up that I can only view a thumbnail of your pic, and it took four attempts to reply,
and that's on a Vista system on DSL.
If I disappear from this forum folks, it was not my choice.
....Cotten
liberty@npoint.netAMCA #776
Dumpster Diver's Motto: Seek,... and Ye Shall Find!
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Rooster!
I can only post photos from my WIN98 on dial-up.
Two different formats appear when i clicke 'manage attachments', and I never know which one will appear.
When I edited my last post in the intake thread to include photos, it duplicated the post, and then wouldn't give me the delete option. I couldn't even edit it to say "duplicated post deleted".
So I had to jump back to my wife's Vista and DSL to get the full delete option format.
The site will not allow the Vista to upload, nor even to drag-and-drop a previous upload.
Just clicking to the next thread can make it sit and spin for several minutes.
The dial-up is much, much quicker.
All other sites open like lightning for the DSL.
....CottenAMCA #776
Dumpster Diver's Motto: Seek,... and Ye Shall Find!
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Amazingly,
I am posting this from a second WIN98 PC on dial-up, an ancient Gateway with an ancient IE, that previously couldn't even browse the site except in long vertical strings of text.
Suddenly it works great,
and ten times faster than the Vista on DSL!
Back to topic,
Now I can see Bill's photo, and its enormous!
Everything looks great as I scroll over it millimeter by millimeter, but I chose a bronze bushing to go over the protruding pin, so that it would bear well upon the flywheel. If that's aluminum, please keep it anti-seized.
Just a reminder Folks: a lot of grief can be avoided by straightening and aligning each rebuilt rod before crank assembly, as Chief rods nearly always need a tweak, often to correct an offset.
Demagnatizing doesn't hurt either, which I believe was omitted in the VI discussion.
....CottenLast edited by T. Cotten; 06-17-2012, 11:57 AM.AMCA #776
Dumpster Diver's Motto: Seek,... and Ye Shall Find!
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I didn't have any bronze handy so I went with the aluminum. I have about .010 clearance between the pin and the bushing. Do you recommend that be tighter?
Also on the subject of your computer problems with Vista, do you have an icon in the toolbar at the top of the page that looks like a sheet of paper torn in two. If so, click that and it might solve your problems.
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Originally posted by Bills37 View PostI didn't have any bronze handy so I went with the aluminum. I have about .010 clearance between the pin and the bushing. Do you recommend that be tighter?
Also on the subject of your computer problems with Vista, do you have an icon in the toolbar at the top of the page that looks like a sheet of paper torn in two. If so, click that and it might solve your problems.
I only expected the large bushing to press the flywheel squarely upon the spindle axis, I never considered the bore.
After all, I dealt with many different pin diameters.
And I see no un-identified icons anywhere other than those insipid emoticons below the text frame.
How many millions of collective hours of productivity has Western Civilization lost to opening such pointless frills as those?
And we worry about carbon.
....CottenAMCA #776
Dumpster Diver's Motto: Seek,... and Ye Shall Find!
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Hi Bill and Tom! been away, busy as hell, then the viking meet and dad's day, etd
haven't been to the vi yet, but I'm trying to sit at the front of the class, here.
Bill, can I get a better pic of the fixture of the flywheel approaching the chucked crankpin? I want to see how you ensured perpendicularity of the wheel to your crankpin.
Otherwise, I'm very jealous of your equipment. I'm still working with the old belt-drive stuff.
I like your lapping tool/old crankpin.
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