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301-350-400 V 8 ENGINE VI CODES Y-P-Z
6A5-23
Fig.
6A5-49
Checking Side Clearance
-
Typical
ENGINE ASSEMBLY
Remove
1. Disconnect battery cables at battery.
2. Drain cooling system.
3. Scribe alignment marks on hood around hood hinges
and remove hood from hinges.
4. Disconnect engine wire harness and engine to body
ground straps.
5. Remove air cleaner.
6. Disconnect radiator and heater hoses at engine.
7. If equipped with power steering or air conditioning,
remove pump and compressor from mounting brackets and
set aside. Do not disconnect hoses.
8. Remove engine fan and pulley.
9. Disconnect accelerator control linkage and move
cable to one side.
10. Disconnect transmission vacuum modulator line
(automatic) and power brake vacuum line at carburetor.
CAUTION: Do not fold the metal transmission
modulator line.
11. Raise vehicle and drain crankcase.
.12. Disconnect fuel lines at fuel pump.
13. Disconnect exhaust pipes from manifolds.
14. Disconnect starter wires.
15. If equipped with automatic transmission, remove
converter cover, remove three converter retaining bolts and
slide converter to rear.
16. If equipped with manual transmission, disconnect
clutch linkage, remove clutch cross shaft, starter and lower
flywheel cover.
17. Remove four lower bell housing bolts (two each side).
18. Disconnect
transmission
filler
tube support
(automatic transmission).
19. Remove two front motor mount bolts.
20. Lower vehicle.
21. Using jack and block of wood, support transmission.
22. Remove two remaining bell housing bolts.
23. Raise transmission slightly.
24. Using suitable lifting equipment, remove engine.
INSTALL
1 . Install engine lifting equipment to engine and lower
engine into chassis, guiding engine to align with bell housing.
2. With engine supported by lifting equipment, install
two upper bell housing bolts.
CAUTION: Do not lower engine romplei'ely
while jack is supporting transmission.
3. Remove transmission support jack.
4. Lower engine and remove lifting equipment.
5. Raise vehicle.
6. Install remaining bell housing bolts.
7. Replace two front motor mount to frame bolts.
8. For remaining installation procedures, reverse steps
1 thru 17.
CRANKSHAFT
Remove
I. Remove engine from vehicle.
2. Mount engine on suitable stand.
3. Remove spark plugs.
4. Remove fan and fan pulley.
5. Remove harmonic balancer.
6. Remove oil pan and oil pump assembly.
7. Remove timing gear cover.
6. Remove crankshaft timing gear.
9. Remove connecting rod bearing caps with bearings
and identify each for reinstallation.
10. Push connecting rod and piston assemblies away
from crankshaft.
11. Remove main bearing caps with bearings and
identify for reinstallation.
12. Remove crankshaft.
Replace
1 . With new upper bearings and rear oil seal installed
position crankshaft in block.
2. Install main bearing caps (with new lower bearings),
but do not tighten cap bolts.
3. Pull connecting rods (with new upper bearings
installed) and pistons into place.
4. Install rod bearing caps (with new bearings), but do
not tighten nuts.
5. With rubber mallet hit both ends of crankshaft to
center thrust bearing. Rearward first than forward last.
6.
Tighten main bearing caps.
7. Tighten connecting rod bearing caps.
6. Recheck bearing clearances using plastic gage method.
9. Install key from old crankshaft keyway in new
crankshaft.
10. Install crankshaft timing gear.
IMPORTANT: ALIGN TIMING MARKS ON
TIMING GEARS BY ROTATING CRANKSHAFT
I F NECESSARY
11. Install timing gear cover using new seal and gaskets.
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