How do you use a dial indicator to measure rotor play?

[winmutt]

I've got a dial indicator and vac base (from 2' cam timing procedure). How do I use it to check end play?

[Ryan Z]

Don't know what you are checking, but pull it one direction, put indicator on and zero it. Now push item in other direction and check reading.

[tobybul]

Originally Posted by winmutt

I've got a dial indicator and vac base (from 2' cam timing procedure). How do I use it to check end play?

Here's something I found that shows how its used on a rotor. I'm just starting to understand how this tools is used, too.

[Chas H]

That there indicator has a magnetic base, which is more usefull around cars than a vacuum base. A magnetic base can be bought separately for thee indicator.

[winmutt]

I removed the lower base and first arm and then fed the wheel bolt through the "hinge" into the brake caliper mount bolt hole. Worked like a champ.