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140 ENGINE
6A1-11
Fig.
6A1-23
Checking Gear End Clearance
Fig.
6A1-24
Installing Oil Pump Seal
Fig.
6A1-25
Oil Pump-To-Cylinder Block Installation
2. Install pump drive key in crankshaft, align pump
driven gear with key and install pump to case (Fig. 6A1-25).
3. Coat threads of pump retaining bolts and stud with
an approved anti-seize compound and secure pump to case.
Torque bolts to 15 lbs. ft. and the stud to 30 lbs. ft.
-
stud
is located in upper right (facing engine). Do not install timing
cover bolts at this time.
4. Install the three front oil pan bolts and torque to 15
lbs. ft.
5. Install crankshaft timing sprocket, timing belt lower
cover, accessory drive pulley and engine front cover.
CAMSHAFT COVER
Removal
1. Raise the hood.
2. Disconnect battery negative cable at battery.
3. Disconnect ventilation tube at cam cover or air
cleaner, then remove air cleaner from carburetor.
4. Remove positive crankcase ventilation valve from
grommet at front of cover.
5. Remove the cover-to-cylinder head bolts and
withdraw cover from engine.
Installation
1. The cover gasket is reusable and need not be replaced
unless damaged. Inspect oil filler cap and grommets for
further serviceability and replace as required.
2. Install cover to cylinder head
-
PCV
valve towards
front of engine
-
and torque cover bolts to 35 lbs. in.
3. Connect positive crankcase ventilation valve and hose
to cover grommet.
4. Install ventilation tube to air cleaner and cam cover
while positioning air cleaner to carburetor.
5. Connect battery negative cable and close hood.
CAMSHAFT
Measuring Lobe Lift
1. Remove camshaft cover as previously outlined.
2. Install dial indicator to cylinder head so that intake
and exhaust valve of the same cylinder can be measured.
Measure the lift of each lobe in consecutive order and record
the values obtained as specified in the following procedures.
a. Rotate the crankshaft in the direction of rotation until
the dial indicator is on the heel of the cam lobe (Fig. 6A1-26).
b. Set dial indicator on zero and rotate camshaft slowly,
or attach an auxiliary starter switch and "bump" the engine
over, until indicator is reflecting the fully raised position.
NOTE: Disconnect the primary lead from the coil.
c. Continue to rotate the crankshaft until the indicator
reads zero. This will be a check on the accuracy of the original
indicator reading.
d. Compare the total lift recorded for each lobe with
specifications
&
.002" intake
.a"
and exhaust .415".
3. Remove dial indicator and reinstall camshaft cover as
outlined in previous procedures.
Removal
1. Raise hood.
2. Drain Cooling System.
3. Remove the camshaft timing sprocket as previously
outlined.
4. Remove timing belt upper cover and cam retainer and
seal assembly as outlined.
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