TM 55-1930-209-14&P-21
(4) Coat the lip of crankshaft oil seal lightly with engine oil.
(5) Thread two pilot studs into cylinder block to guide housing in place (Figure 5-34). To pilot oil seal on
crankshaft use an oil seal expander.
(6) With housing suitably supported, position it over crankshaft and up against cylinder block rear end plate
and gasket. Remove oil seal expander.
(7) Install all of flywheel housing bolts, lock washers, flat washers, and copper washers in their proper location,
finger tight. Remove pilot studs.
NOTE
Rotate crank shaft often during bolt tightening sequence to insure there is no binding of shaft or
gear train.
(8)
Tighten bolts up to 10-15 lb ft less than specified torque as shown in Figure 5-35.
(9)
Refer to Figure 5-35, and tighten bolts in order to torques shown below.
(a) Nos. 1-6 to 90-100 lb ft torque.
(b) Nos. 7-12 and 21-22 to 40-45 lb ft torque.
(c) All other 3/8 16 bolts to 25-30 lb ft torque.
(10)
Install flywheel.
(11)
Check flywheel housing concentricity and bolting flange face with a suitable dial indicator as follows:
(a) Thread base post tightly into one of tapped holes in flywheel. Then assemble dial indicators on base
post.
(b) Position dial indicators straight and square with flywheel housing bell face and inside bore of bell.
Make sure each indicator has adequate travel in each direction.
NOTE
If flywheel extends beyond housing bell, bore and face must be checked separately. Use special
adapter in tool set to check bore.
(c) Tap front end of crankshaft with a soft hammer or pry it toward one end of block to ensure end play
is only in one direction.
(d) Adjust each dial indicator to read zero at 12 o'clock position. Then rotate crankshaft one full
revolution, taking face and bore readings every 45 . Stop and remove wrench or cranking bar at each interval to ensure
reading accuracy. The maximum indicator reading must not be more than .013 inch for either bore or face.
(e) If runout exceeds .013 inch, remove flywheel housing and check for dirt or foreign materials (i.e. old
gasket material) between flywheel housing and cylinder block and plate.
(f) Reinstall flywheel housing, and flywheel and retighten bolts as described in steps (7) thru (10) above.
Then recheck runout. If necessary, replace flywheel housing.
(12) Install torque converter assembly.
5-88
