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port and secure the flange to the cylinder. Tighten hose REASSEMBLY clamps on hose.
6-12. When the engine assembly has progressed to the point where the crankcase has been assembled, the sump 6-14. Install oil suction screen (13), cap (12) and gasket may be installed on the engine. Using a new gasket assem-(14). ble the oil sump to the crankcase. Consult.the applicable parts catalog for the correct fastening. Tighten all fasten 6-15. Install gasket (10) and carburetor (11).
1.
Intake Pipe

2.
Sump Gasket

3.
Intake Pipe Gasket

4.
Intake Pipe Flange

5.
Plain Washer

6.
Lockwasher

7.
Bolt

8.
Sump

9.
Plug

10.
Gasket

11.
Carburetor

12.
Plug

13.
Screen

14.
Gasket

15.
Large Clamp

16.
Hose

17.
Small Clamp

18.
Plain Washer

19.
Nut

20.
Locknut

 

Figure 6-2. Oil Sump and Related Parts 0-360
OVERHAUL  MANUAL  LYCOMING  76  SERIES  AIRCRAFT  ENGINES  Section7 
Crankcase,Crankshaft 
SECTION  7  and Reciprocating Parts 
CRANKCASE,CRANKSHAFT AND 
RECIPROCATING PARTS 

7-1. At this time it is assumed that the magneto, cylinders and sump have been removed from the engine.
DISASSEMBLY

7-2. Remove the oil pump and vacuum pump body assembly by removing the four plain nuts, lockwashers and plain washers. Discard the "o" rings seal and oil seal in pump body. Remove the driven impeller from the crankcase and the driving impeller from the pump shaft. The oil pump shaft cannot be removed until the crankcase is parted. See figure 7-1.
7-3. Remove the oil pressure screen housing and the oil cooler adapter or the oil filter adapter assembly (where ap-plicable) from crankcase. Remove the oil cooler adapter from the oil filter adapter. Remove the oil filter and adapter plate. Also remove thermostatic oil by-pass valve. Discard all gaskets.
7-4. Remove the oil relief valve plug, gasket, spring and ball from the crankcase.
7-5. Remove the oil filler tube.
7-6. Remove the nuts and bolts from the parting surface of the crankcase, which hold the crankcase halves together. Remove the crankcase from the overhauls stand and place on the work bench.
7-7. Remove the starter ring gear support assembly (16,
2-
12

figure 7-3) from the crankshaft propeller flange by tapp-ing lightly on the rear of the assembly. The alternator
drive belt will be removed with this unit.
7-8. Remove the external retaining ring (12), seal retainer

(11) and "o" ring seal (10) from the tachometer drive adapter (figure 7-3). The tachometer drive adapter can not be removed until the crankcase is separated.
　
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