OIL SUMP AND FUEL INDUCTION

6-1. No attempt will be made to describe the overhaul of
the carburetors used on the engine models covered in the overhaul manual. Overhaul information for the car-buretors can be obtained from Marvel-Schebler Products Division publication no. MS609/631.
DISASSEMBLY

6-2. Intake Pipes. Loosen and remove the capscrews that attach the intake pipe flange to the cylinder head intake port. Loosen the hose clamps and slide the pipe off the sump connector. Mark the intake pipes as they are remov-ed from the engine so that they may be reassembled in the
same location.
6-3. Carburetor. Remove the carburetor from the moun-ting pad of the sump.
6-4. Oil Suction Screen. See figure 6-1 or 6-2. Unscrew the hex head plug and remove gasket and suction screen.
6-5. Oil Sump. Remove the fastenings from the periphery of the sump and remove the sump.
CLEANING

1.
Intake Pipe

2.
Sump Gasket

3.
Intake Pipe Gasket

4.
Flange

5.
Washer

6.
Lockwasher

7.
Bolt

8.
Sump

9.
Bolt

6-6. Oil Sump. Clean the sump according to the general in-structions contained in Section 3. Clean the oil passages with solvent and a suitable brush and blow out with com-

pressed air. Do not clean the oil suction screens until they have been inspected for metal particles.
6-7. Carburetors. Clean the carburetors in accordance with the manufacturer's instructions.
INSPECTION

6-8. Inspect the sump according to the general instruc-tions contained in Section 3.
6-9. Oil Suction Screen. Before cleaning the screen, inspect for evidence of metal particles, which could serve as an aid to locate deterioration in some section of the engine. In-spect the screen for distortion or openings of the mesh.
6-10. Carburetors. Inspection of carburetors must deter-mine parts serviceability and repair and replacement re-quirements. Check applicable manufacturer's publica-tions for limits to be used when conducting inspection.
10.
Gasket

11.
Carburetor

12.
Cap

13.
Screen

14.
Gasket

15.
Clamp

16.
Clamp

17.
Hose

Figure 6-1. Oil Sump and Related Parts
Section6 OVERHAUL MANUAL LYCOMING 76 SERIES AIRCRAFT ENGINES OilSump and Fuel Induction
REPAIR AND REPLACEMENT ing to the proper torque as stated in the Table of Limits.
6-11. Carburetor. All repair and replacement procedures 6-13. Intake Pipes. See figure 6-1 or 6-2. Slide an intake must be carried out in conjunction with the pipe flange (4) over each intake pipe (1). Assemble hose manufacturer's publication. Consult Marvel-Schebler Pro-(17) and two clamps (15 and 16) over end of intake pipe ducts Division publication no. MS609/631. and install on sump. Place a new gasket (3) over the intake
　
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