Im just finnishing the left hand wheel bearings on my 85 300TD, and am using a borrowed Dial guage to set the tolerances for bearing play as shown in the DIY wiki. Im wondering if anyone could tell me definitively what the notches are on this guage?

It says on the face .0001" and as you can see in the picture it has ten sections each containing ten notches. I just cant figure out what one notch would be. Apparently the limits are between .0015 and .0023 inches. Ive never been great with math and I thought some of you who have used these more than I would know.
Thanks for any help

Attached Thumbnails

 

Each mark/line represents 1 Ten thousandths of an inch (as represented by the .0001 on the Gauge.)
The number represent increments of one thousandth of an inch.
1 = 0.001
5= 0.005
It looks like the total range of the gauge is 10 thousandths of an inch (even though the gauge is not labled 1-10).(One complet revolution of the Pointer from Zero back to Zero = 0.010 of the Dial Indicator Plunger.)

Also this is a better than average Dial Indicator as most only measure to 0.001 of an inch.

A way to get some idea of what is beaing measured is to setup the Dial Indicator with the Plunger slightly preloaded on a flat surface. Set the Indicator at Zero and slide lets say a .002 Feeler Gauge under the Pluger and see what reading you get.

__________________
84 300D, 82 Volvo 244Gl Diesel

That's a plus-minus gauge. Set to 0, you don't have to preload it as per the FSM. Mine doesn't have that, so I have to preload it to see if it has any runout.

Diesel911 has a good suggestion to check accuracy.

__________________
83 SD

84 CD

Is the part in red the spec for the in and out play of the Hub?

If it is the spec for the in and out play of the Hub it mean that the minimum allowable play is 0.0015 and the Maximum allowable play is 0.0023.

Becareful when tightening the Nut on the Hub.
If you squash that Crush Spacer (tightening the Nut squashes the spacer ring and you need to check the end play as you go along to see if the end play falls within the minimum and maximum allowable end play) ring too much and end up with less then the minimum allowable play you have to take the Hub a part and replace that Crush Spacer with a new one and start again.

Maybe one of our Members that lives near you would help you out

Taking apart the Hub again looks like it will ruin the new Good Bearings.

__________________
84 300D, 82 Volvo 244Gl Diesel

Apparently the is supposed to be the Hub end play.
However, someone did not round off the numbers correctly.
0.04-0.06mm = 0.001574-0.0023 inches
The 0.00574 should have been rounded to 0.0016 inches

That would give you a minimun end play of 0.0016 inches
and a maximum end play of 0.0023 inches

below is the mm to inches converter I used.
http://www.metric-conversions.org/length/millimeters-to-inches.htm

__________________
84 300D, 82 Volvo 244Gl Diesel

I need to correct myself.

You do need to pre load, but with that gauge, it's easier.

Attached Thumbnails

   

Attached Files

wheel bearing, front 126:33-300.pdf (659.8 KB, 107 views)

__________________
83 SD

84 CD