Help with Dial Indicator
Thread Starter
Cruising
Joined: Mar 2003
Posts: 14
Likes: 0
From: Hilliard FL
Help with Dial Indicator
As I am setting up my rear wheel bearings, i relized that I did not know how to read the dial indicator.
I know that the play should be between .001 and .008. I think this says .0013, I just want to be sure.
Could someone please clue me in on the readings.
I calibrate the dial to Zero and lift up on the trailing arm and this is the reading that I get.
Thanks in advance.
:confused:
I know that the play should be between .001 and .008. I think this says .0013, I just want to be sure.
Could someone please clue me in on the readings.
I calibrate the dial to Zero and lift up on the trailing arm and this is the reading that I get.
Thanks in advance.
:confused:
Race Director
Joined: Nov 2000
Posts: 11,872
Likes: 12
From: Waterloo ontario Canada
Re: Help with Dial Indicator (Blue73Red)
Push on the axle flange and the reading should go back to zero. If it doesn't then take that reading, pull on the flange and take another reading. The difference between the two numbers is the play in thousands of an inch. The dial indicator base must also be firmly attaced to the trailing arm. If the base wiggles at all the reading is not acurrate. I usually C clamp and piece of angle iron to the trailing arm then put the magnetic base on the angle iron.
If the readings are not repeatable then they are inacurrate.
If the readings are not repeatable then they are inacurrate.
Thread Starter
Cruising
Joined: Mar 2003
Posts: 14
Likes: 0
From: Hilliard FL
Re: Help with Dial Indicator (79VetteMike)
Thanks Mike, I have really enjoyed working on it. The only thing I plan to have someone else rebuild is the rear end and the TH400 Transmission. :steering:
Burning Brakes
Joined: Jul 2000
Posts: 1,162
Likes: 2
From: Beaverton, OR
Re: Help with Dial Indicator (norvalwilhelm)
Push on the axle flange and the reading should go back to zero. If it doesn't then take that reading, pull on the flange and take another reading. The difference between the two numbers is the play in thousands of an inch. The dial indicator base must also be firmly attaced to the trailing arm. If the base wiggles at all the reading is not acurrate. I usually C clamp and piece of angle iron to the trailing arm then put the magnetic base on the angle iron.
If the readings are not repeatable then they are inacurrate.
If the readings are not repeatable then they are inacurrate.
Norval speaks the truth... Sometimes it can be a pain in the neck to get the base to stay put while you push/pull on things... At least if you have a cheap import base like mine :rolleyes: Of course if you can get the base close enough to where you are working, it shouldn't be a problem, the angle iron suggestion is good, I think I'll try that next time I need to get a good reading and can't get the damn thing to line up properly...
Racer
Joined: Nov 2002
Posts: 364
Likes: 0
From: Potomac MD
Re: Help with Dial Indicator (dath)
Can someone explain how you got .013". Is it that the arrow moved 13 marks to the right 13 x .001in = .013"? Does the arrow always go to the right or did it go left to 87.
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Joined: Feb 1999
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From: Lenoir City Tennessee
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Re: Help with Dial Indicator (Skyhigh)
Can someone explain how you got .013". Is it that the arrow moved 13 marks to the right 13 x .001in = .013"? Does the arrow always go to the right or did it go left to 87.
