16. Replace transmission assembly
(page 117). NOTE: Be sure to use lock washers under heads of front to rear
flywheel housing bolts.
REPLACEMENT OF FLYWHEEL
FLYWHEEL TO CRANKSHAFT
CONSTRUCTION
Flywheel has fit
of .001" loose to .002" tight on crankshaft flange and is held with six 1/2"
special bolts which are tightened gradually to 105 ft. lbs. torque, using
alternate opposites. A dowel pin is used to carry part of torque. Dowel has
.001" to .0025" press fit in both flywheel and crankshaft (Fig. 129). Special
seal compound (Pliobond 30) is used between flywheel and crankshaft.
When making repairs, dowel hole is finish reamed and an
oversize dowel is installed after six flywheel to crankshaft bolts are tightened.
This procedure removes scores and prevents oil leakage. Dowels cannot be
reused after removal, nor can another dowel be used in same dowel hole. Special
tools are available for installing oversize dowel.
OIL LEAK AT FLYWHEEL SEAL,
DOWEL OR BOLTS
When inspection shows
an oil leak to be located at flywheel to crankshaft seal, dowel, or at one
or more of flywheel to crankshaft bolts |
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Fig. 129
Flywheel to Crankshaft Construction
(Trouble Diagnosis and Testing, page
132 ), it will be necessary to remove flywheel and make following repair.
REPLACEMENT OF FLYWHEEL, FLYWHEEL SEAL, DOWEL OR BOLTS
1. Remove transmission assembly (page 53 ).
2. Remove flywheel to crankshaft dowel, using tool J-2774-1
and J-2153 (Fig. 130). Dowel must be tapped (5/16"-24) for tool J-2774-1.
3. Remove flywheel bolts, plates, and flywheel. If flywheel
does not come off easily, a slight prying action between front surface of
flywheel and block may be necessary. CAUTION: Do not hammer on flywheel in
any way so that it will become damaged or distorted. Protect torus cover
gasket surface from nicking or burring.
4. Clean flange of crankshaft and mating surface of flywheel
by scraping. If available, Acetone may be used as solvent for Pliobond 30
seal compound. CAUTION: Do not scratch or nick these surfaces.
5. Apply thin film (approximately 1/2" wide) of special
seal compound (Pliobond 30) on the surface of crankshaft at bolt circle diameter.
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