06-06-2015, 06:23 PM | #101 |
Senior Member
Join Date: May 2010
Location: Sydney, Australia
Posts: 949
|
Re: Gravity bends a crank?
Bill, I think you're right. But instead of slowing down to look at the accident, try speeding up. Einstein observed that light and objects appear to bend at great speed, so if you speed by any crankshaft lying on a floor and blink fast enough it will appear bent. Einsteins theory of...
|
06-07-2015, 10:45 AM | #102 |
Senior Member
Join Date: May 2010
Location: Kansas
Posts: 334
|
Re: Gravity bends a crank?
Six pages of opinion , but no facts. Do they bind or do we just think they bind. How much ?? If in doubt ,just stand them on end and be done..
__________________
[QUO[/QUOTE]no matter where you are,or where you're at, there you are... |
Sponsored Links (Register now to hide all advertisements) |
|
06-07-2015, 12:16 PM | #103 |
Senior Member
Join Date: Jul 2013
Location: Sacramento, CA
Posts: 368
|
Re: Gravity bends a crank?
I beg to differ. Everything said about Molly Cules was absolutely factual and true.
|
06-07-2015, 12:19 PM | #104 |
Senior Member
Join Date: May 2010
Location: now Kuna, Idaho
Posts: 3,779
|
Re: Gravity bends a crank?
dude, If you stand them on end, almost all the weight is pushing down on that last crank throw, right? And there's no support at the centerline of the crank, right? So eventually the crank will bend and maybe topple over, even! Whereas, if the crank is lying on the floor it is being supported at least in three or four places, thus spreading the weight out instead of all being focused at one point if it were standing on end!
|
06-08-2015, 10:47 AM | #105 |
Senior Member
Join Date: May 2010
Posts: 2,488
|
Re: Gravity bends a crank?
'Resistance is futile' , In '95 Western Oregon had a 5.6 earthquake and I could hear my merc cranks falling over in the shop! Ring, ding, and clank! The one that has since been checked was badly cracked. Later Newc
|
06-08-2015, 11:41 AM | #106 |
Senior Member
Join Date: Jul 2013
Location: Sacramento, CA
Posts: 368
|
Re: Gravity bends a crank?
Sponsored Links (Register now to hide all advertisements)
|
06-08-2015, 12:18 PM | #107 |
Senior Member
Join Date: Mar 2015
Location: woodland Ca
Posts: 333
|
Re: Gravity bends a crank?
Hey rheltzel, does she still live in sac? What a gal! Wouldn't mind seein her again.......I'm not far away......sigh....laid my crank flat many a time.....sigh....
__________________
Alive n kickin n mostly kickin! |
06-08-2015, 12:22 PM | #108 | |
Senior Member
Join Date: May 2010
Location: Central Iowa
Posts: 691
|
Re: Gravity bends a crank?
Quote:
Without additional support the counterweights and journals will still have a bending moment imparted upon them when stored vertically. This would have a cumulative effect as you move down the crankshaft towards the ground (assuming they were stored sitting on a surface instead of hanging).
__________________
Mike Wanted: - '32-34 Open Cab Pickup (RPU) parts and documents/articles/info - ARDUN parts |
|
06-08-2015, 12:30 PM | #109 |
Member Emeritus
Join Date: May 2010
Location: Madison, NJ
Posts: 5,230
|
Re: Gravity bends a crank?
Also...if this IS a problem...what is the time frame? How long between laying down a crank and measurable bending? If the time is relatively short...
lay 3 carnks into a spare block, rotate'em against an indicator. If straight. leave one in the block, lay one flat, stand one on end. Re-indicate at given time... The belief in bending seems to come largely from machine shops, where i would assume cranks don't hang around long before going to a home. In our cases, I'm sure some of us have cranks that have been in one place for multiple decades. Science needs to know... |
06-08-2015, 01:07 PM | #110 |
Senior Member
Join Date: Jul 2013
Location: Sacramento, CA
Posts: 368
|
Re: Gravity bends a crank?
Sadly, she is not in Sacramento. After years of working in the Rouge Plant cafeteria and suffering through too many harsh Dearborn winters, Molly moved to Florida and opened a profitable crank straightening business there for those whose cranks were bent from being laid and who were in need of re-straightening. It is said that Molly could straighten old bent cranks when no one else could. She was, as you can imagine, a legend in her time.
|
06-08-2015, 01:11 PM | #111 |
Senior Member
Join Date: Mar 2015
Location: woodland Ca
Posts: 333
|
Re: Gravity bends a crank?
lolololo...to bad...sigh...lololo
__________________
Alive n kickin n mostly kickin! |
06-08-2015, 01:12 PM | #112 |
Senior Member
Join Date: Mar 2015
Location: woodland Ca
Posts: 333
|
Re: Gravity bends a crank?
Ok, I'm done now.......no more on this thread....my sides hurt!!
__________________
Alive n kickin n mostly kickin! |
06-08-2015, 01:20 PM | #113 |
Senior Member
Join Date: May 2010
Location: PRINEVILLE, OR.
Posts: 490
|
Re: Gravity bends a crank?
It has been verified that a sheet of window glass standing vertically will eventually become thicker at the bottom than at the top. It sort of slides down as if like honey. I suppose this could happen to a vertically standing crank if left that way for a long period of time. So make sure when storing you alternate positions from time to time. Need data to know the proper timing on this theory. Has anybody on the BARN done the research ?
__________________
KIM KARDASHIAN ISN'T FLAT, BUT MY MOTOR IS..... http://s818.photobucket.com/home/roglehr/index |
06-08-2015, 01:30 PM | #114 |
Senior Member
Join Date: Oct 2010
Location: Callahan Fla
Posts: 1,149
|
Re: Gravity bends a crank?
Okay, I've solved the problem....Grease, we fill a pool with heavy grease and lay the crank in the grease and as the crank slowly sinks to the bottom over the years ,the grease evenly supports the crank from all sides and prevents rust. Problem solved.
__________________
Wanted, a car with a " Dynaflex Superflowing Unijet Turbovasculator which is Syncromeshed to the Multicoil Hydrotensioned Dual vacuum Dynomometer. " |
06-08-2015, 01:38 PM | #115 |
Senior Member
Join Date: Jul 2011
Location: SF Bay Area
Posts: 6,646
|
Re: Gravity bends a crank?
Nothing new there. That's how Molly would start her day off with a bang.
__________________
Alan |
06-08-2015, 02:18 PM | #116 |
Senior Member
Join Date: May 2010
Location: Ft Mohave,Az
Posts: 1,987
|
Re: Gravity bends a crank?
Fibber you best make sure it is corn head grease. Molly probably used it also. Corn head that is.
|
06-08-2015, 02:38 PM | #117 |
Senior Member
Join Date: Dec 2010
Location: North of sandy ago, CA.
Posts: 2,064
|
Re: Gravity bends a crank?
There was a company in South Gate called Chrome Crankshaft that polished cranks and you could get your bumpsticks done as well.
Bruce
__________________
Works good Lasts long time |
06-08-2015, 02:59 PM | #118 | |
Senior Member
Join Date: Nov 2010
Location: NM
Posts: 2,438
|
Re: Gravity bends a crank?
Quote:
__________________
'52 F-1, EAB flathead |
|
06-08-2015, 03:00 PM | #119 |
Senior Member
Join Date: Jul 2013
Location: Sacramento, CA
Posts: 368
|
Re: Gravity bends a crank?
Blowing glass is one thing. Crankshafts are an entirely different matter.
|
06-08-2015, 03:52 PM | #120 |
Senior Member
Join Date: Jul 2010
Posts: 2,593
|
Re: Gravity bends a crank?
Glass don't move, it stays the shape it was made. The belief was based on the thick bottom of a window. This was just the way it was put in in the first place.
And if JWL has stated that flathead cranks stored anyway for unknown time, show no evidence of "bending" in storage, when put on a crank grinder, then the question has been answered. They don't bend. Martin. |
|
|
Sponsored Links (Register now to hide all advertisements) |
|