Usage:
Typical Example
(1) Tighten flywheel housing bolts with the procedure that follows:
a. Tighten bolts 1 through 21 in number sequence to a torque of ... 40 ± 7 N·m (29 ± 5 lb ft)
b. Tighten bolts 1 through 8 in number sequence to a torque of ... 135 ± 15 N·m (99 ± 11 lb ft)
c. Tighten bolts 9 through 21 again in number sequence to a torque of ... 55 ± 7 N·m (40 ± 5 lb ft)
(2) Maximum permissible change from an exact vertical face (face runout) at 4 points (total indicator reading) ... 0.30 mm (.012 in)
NOTE: Front face of flywheel housing and rear face of block must be free of oil, dirt, water, assembly compounds and other contaminants during assembly. With an authorized applicator, apply a continuous film of 1U8846 gasket maker to entire joint face.
1W1608
1W1608 Flywheel housing
(1) Tighten flywheel housing bolts with the procedure that follows:
a. Tighten bolts 1 through 8 in number sequence to a torque of ... 135 ± 14 N·m (100 ± 10 lb ft)
b. Tighten bolts 9 through 21 in number sequence to a torque of ... 54 ± 7 N·m (40 ± 5 lb ft)
c. Tighten bolts 1 through 8 again in number sequence to a torque of ... 135 ± 14 N·m (100 ± 10 lb ft)
d. Tighten bolts 9 through 21 again in number sequence to a torque of ... 54 ± 7 N·m (40 ± 5 lb ft)
(2) Maximum permissible change from an exact vertical face (face runout) at 4 points (total indicator reading) ... 0.30 mm (.012 in)
NOTE: Front face of flywheel housing and rear face of block must be free of oil, dirt, water, assembly compounds and other contaminants during assembly. With an authorized applicator, apply a continuous film of 8T9022 liquid sealant to entire joint face.
4N7733
4N7733 Flywheel Housing
(1) Tighten flywheel housing bolts with the procedure that follows:
a. Tighten bolts 1 through 18 in number sequence to a torque of ... 41 ± 7 N·m (30 ± 5 lb ft)
b. Tighten bolts 1 through 7 in number sequence to a torque of ... 135 ± 15 N·m (100 ± 10 lb ft)
c. Tighten bolts 8 through 18 again in number sequence to a torque of ... 55 ± 7 N·m (40 ± 5 lb ft)
(2) Maximum permissible change from an exact vertical face (face runout) at 4 points (total indicator reading) ... 0.30 mm (.012 in)
NOTE: Front face of flywheel housing and rear face of block must be free of oil, dirt, water, assembly compounds and other contaminants during assembly. With an authorized applicator, apply a continuous film of 8T9022 liquid sealant to entire joint face.
7C3617
7C3617 Flywheel Housing
(1) Tighten flywheel housing bolts with the procedure that follows:
a. Tighten bolts 1 through 15 in number sequence to a torque of ... 41 ± 7 N·m (30 ± 5 lb ft)
b. Tighten bolts 1 through 8 in number sequence to a torque of ... 135 ± 14 N·m (99 ± 10 lb ft)
c. Tighten bolts 9 through 15 again in number sequence to a torque of ... 54 ± 7 N·m (40 ± 5 lb ft)
(2) Maximum permissible change from an exact vertical face (face runout) at 4 points (total indicator reading) ... 0.30 mm (.012 in)
NOTE: Front face of flywheel housing and rear face of block must be free of oil, dirt, water, assembly compounds and other contaminants during assembly. With an authorized applicator, apply a continuous film of 8T9022 liquid sealant to entire joint face.
4N1890
4N1890 Flywheel Housing
(1) Tighten flywheel housing bolts with the procedure that follows:
a. Tighten bolts 1 through 17 in number sequence to a torque of ... 40 ± 10 N·m (29 ± 7 lb ft)
b. Retighten bolts 1 through 17 in number sequence to a torque of ... 40 ± 10 N·m (29 ± 7 lb ft)
(2) Maximum permissible change from an exact vertical face (face runout) at 4 points (total indicator reading) ... 0.30 mm (.012 in)
NOTE: Front face of flywheel housing and rear face of block must be free of oil, dirt, water, assembly compounds and other contaminants during assembly. With an authorized applicator, apply a continuous film of liquid sealant to entire joint face.
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 indicator will touch the flywheel housing bore. With the dial indicator in position at (C), adjust the dial indicator to "0" (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 "0" (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 lines I and II by columns.
8. Subtract the smaller number from the larger number in line III in columns (B) & (D). The result is the horizontal "eccentricity" (out of round). Line III, column (C) is the vertical eccentricity.
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.
Flywheel Housing Runout
Face Runout (Axial Eccentricity) Of The Flywheel Housing:
8T5096 Dial Indicator Group Installed
1. Fasten a dial indicator to the crankshaft flange so the anvil of the indicator will touch the face of the flywheel housing.
2. Put a force on the crankshaft toward the rear before reading the indicator at each point.
3. With dial indicator set at 0.00 mm (.000 in) at location (A), turn the crankshaft and read the indicator at locations (B), (C) and (D).
4. The difference between lower and higher measurements taken at all four points must not be more than 0.38 mm (.015 in), which is the maximum permissible face runout (axial eccentricity) of the flywheel housing.