**3500 ENGINE**

**SPECIFICATIONS**

**FLYWHEEL HOUSING BORE**

**NOTE: Write the dial indicator measurements with**

**their positive (+ and negative (-) notation (signs).**

**This notation is necessary for making the**

**calculations in the chart correctly.**

1.

Fasten the dial indicator to the flywheel so the

anvil of the indi cator will touch the flywheel

housing bore With the dial indi cator In position

at (C), adjust the dial Indicator to "O" (zero)

Push the crankshaft up against the top bearing.

Write the, measurement for bearing clearance

on line 1 In column (C)

2.

Divide the measurement from Step 1 by 2. Write

this number

on line 1 in columns (B) & (D).

3.

Turn the crankshaft to put the dial Indicator at

(A) Adjust the, dial indicator to "O" (zero).

4.

Turn the crankshaft counterclockwise to put the

dial Indicator

at (B) Write the measurement in

the chart.

5.

Turn the crankshaft counterclockwise to put the

dial Indicator

at (C) Write the measurement In

the chart.

6

Turn the crankshaft counterclockwise to put the

dial indicator

at (D). Write the measurement

in the chart.

7

Add fines I and II by columns.

8

Subtract the smaller number from the larger

number in line II

In columns (B) & (D) The

result is the horizontal "eccentricity (out

of

round). Line Ill, column (C) is the vertical

eccentricity

**CHART FOR DIAL INDICATOR MEASUREMENTS**

**Position of**

**dial indicator**

**Line**

**No.**

**A**

**B**

**C**

**D**

**Correction for bearing clearance**

**I**

**0**

**Dial Indicator Reading**

**II**

**0**

**Total of Line 1 & 2**

**III**

**0**

**** ***

******

*

Total Vertical eccentricity (out of **round).**

** Subtract the smaller No. **from the **larger No. The

difference is

**the total horizontal eccentricity.**

**A10234X1**

9

On the graph for total eccentricity find the point

of intersection of the lines for vertical eccentricity and

horizontal eccentricity

10

If the point of intersection Is In the range marked

"Acceptable" the bore is In alignment If the point of

intersection is In the range marked "Not Acceptable" the

flywheel

housing

must

be

changed.

**52**