AVCO
LYCOMING
WILLIAMSPORT
DIVISION
TECHNICAL PUBLICATION REVISION REVISION
No.
PUBLICATION
PUBLICATION
PC-122-1
0-320-H
76 Series
PUBLICATION
No.
April,
PC-122
DATE
1976
The page(s) furnished herewith are intended to replace the corresponding page(s) of the publication indicated above. If additional copies of the revision are required they may be obtained from Avco Lycoming Williamsport Division. See latest edition of Service Letter No. L114 for further information on Avco Lycoming service publications.
Previous None
revisions
to this publication
This
revision
consists
PC-122-1 1-1, 1-3, 1-6, 1-7 2-3, 2-4
of:-
TEXTRON LycomingAIRCRAFT ENGINES 0-320-H Series 76 Series
PARTS CATALOG
INTRODUCTION The Lycoming 76 series O-320-H model engine depicted herein employs a modern unitized design crankcase. This incorporates all accessory drives in the crankcase eliminating a separate accessory housing and providing a compact, lightweight power unit. The parts catalog is constructed in the same familiar format as previous catalogs, the only difference being that the accessory drives section is now integrated with the Crankcase Group in Section 1. An oversize and undersize parts list shows available parts and their sizes. A Numerical Index is provided for convenience in finding parts when only the part number is known. Complete coverage of Vendor Accessories used on Lycoming engines may be secured by referring to the publications listed in footnotes in this catalog on the page where the accessories are installed. A complete list of Vendor publications may also be found by referral to Service Letter No. L114. NOTE The illustrations, pictures and drawings shown in this publication, are typical of the subject matter they portray; in no instance are they to be interpreted as examples of any specific engine, equipment or part thereof. SERVICE BULLETINS, INSTRUCTIONS AND LETTERS Although the information contained in this parts catalog is up-to-date at time of publication, users are urged to keep abreast of later information through Lycoming Service Bulletins, Instructions and Service Letters which are available through all Lycoming Distributors or from the factory by subscription. Consult the latest edition of Service Letter No. L114 for subscription information.
i
O-320-HSERIES TABLE OF CONTENTS SECTION
PAGE
i Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii ............................ ................ Table of Contents . .iii List of Available Oversize and Undersize Parts ................................ 1 - Crankcase, Crankshaft and Camshaft Group Crankcase Assembly ....................................... Crankcase Related Parts ................. Crankshaft, Camshaft and Tachometer Drive ............................ Crankcase Attaching Parts ..................................... Oil Pump and Vacuum Pump Drive ................................ Oil Filter and Fuel Pump Assembly ................. 2 - Cylinder, Piston and Valve Train Connecting Rod, Piston and Piston Rings ........... Cylinder Assembly .................................... Valve Assembly ........................................ ........................... Push Rods, Rocker Arms and Hydraulic Lifters Cylinder Head Drain Tubes and Intercylinder Baffles .............. 3 - Ignition System Magneto Drive and Magneto System
.
.........
.
..............
.
.................. .....
............
4-1
.........
......................
5 - Oil Sump and Induction System ................................. Oil Sump Assembly ............................. Intake Pipes and Carburetor
5-1 5-2
.......
6 - Service Replacement Section Seal and Gasket Set .............................. Cylinder, Piston and Ring Kit ................
2-1 2-2 . 2-3 . 2-4 2-5
3-1
.................................
4 - Electrical System Alternator Bracket and Starting Motor
7 - Numerical Index
1-1 1-2 1-3 1-4 1-5 1-6
.......
........ ..................
..
. 6-1 6-2 7-1
..........................................
ii
O-320-H SERIES AIRCRAFT ENGINES LISTING OF PROCURABLE OVERSIZE AND UNDERSIZE PARTS OVERSIZE
PARTNO. P2
P3
P5
P6
P7
P10
P11
P12
P15
P20
UNDERSIZE P22
P30
P33
61662
66145
X
66796
X
P75
P125
M3
M6
M10
X
X
X
X
X
X
X
72057
X
X
X
X
72058
X
X
X
X
72063
X
X
X
72065
X
X
X
76943
X
X
X
77160
X
X
X
LW-14105
NOTE I Studs are available in P3, P7 and P12. Pistons and piston rings are available in P10 and P20. NOTE 2 Wben ordering oversize or undersize parts, be sure and specify the required oversize or undersize dimensions, along with the proper part number. For example: to order bushing P/N 72063 in .010 inch oversize, order P/N 72063 P10. To order bearing P/N 61662 in .003 inch undersize, order P/N 61662 M3. Code letter P stands of oversize, while code letter M means undersize.
iii
LYCOMING
0-320-1-1 76 SERIES PARTS CATALOG
CRANKCASE,CRANKSHAFTAND CAMSHAFT GROUP CRANKCASE ASSEMBLY
1 2 3 4 5 6 7
LW-16819 LW-15045 LW-15276 LW-15277 50-15 38-13 STD-557
8 9 10 11 12 13
31C-12 31C-13 1102 STD-1339 25C-9 1102
QUANTITY PER ASSEMBLY
ON
FIG. PART REF. NUMBER 1
DESCRIPTION
ALL 1 1
CRANKCASEASSEMBLY BUSHING, Magneto drive STUD, 1/2-20 x 10-23/32 long STUD, 1/2-13 x 8-3/4 long STUD, 1/2-20 x 1-7/8 long STUD, 3/8-16 x 1-5/8 long DOWEL, 25/64 ID x 1/2 OD x 11/16 hollow STUD, 5/16-18 x 1-1/2 long STUD, 5/16-18 x 1-5/8 long PLUG, 1/8-27 NPT PLUG, 1/16-27 NPT STUD, 1/4-20 x 1-1/8 long PLUG, 1/8-27 NPT, Allen head
2 4 8 16 3 8 1 2 1 2 1
6
II 10 5 8
Figure 1
1980 December, Revised
1-1
76 SERIES 0-320-H PARTS CATALOG
LYCOMIING
CRANKCASE, CRANKSHAFT AND CAMSHAFT GROUP CRANKCASE RELATED PARTS FIG. REF. 2
PART NUMBER
1 2 3
LW-14105 LW-13792 72075
4
72091
5 6
1028-B 68668
7 8 9
STD-425 STD-1045 76529
10 11 12 13 14 15 16 17 18
LW-13290 LW-13291 STD-33 STD-678 LW-38-2.75 70457 75675 LW-14784 72220
QUANTITY
ON
DESCRIPTION
8 1
BEARING, Crankshaft SEAL, Crankshaftoil RING, Oil seal,7/16 ID x 3/32 section RING, Oil seal,3/8 ID x 7/64 section BALL, 11/16 dia. SPRING,Oil press.reliefvalve WASHER,No.10 plain (max.9) GASKET, 1-1/4 ID x 1-1/2 OD x 3/32 32 PLUG, Oil relief valve BRACKET, Enginemounting,upper BRACKET,Enginemounting,lower WASHER,3/8 plain WASHER,3/8 lock BOLT, 3/8-16 x 2-3/4 long,hex.hd. GASKET,Oil filler extension EXTENSION,Oil filler GAGE ASSY., Oil level GASKET, Oil level gage
7 2
1 1 un
1 1 2 2 8 8
8 1 1 1 1 NOTE Alternate spring,oil pressurerelief valve P/N's 77467,61084.Select for desiredoil pressure.
16 18
PER ASSEMBLY
15
3
4
9
7 Figure 2 1-2
LYCOMING
0-320-H
76 SERIES PARTS CATALOG
CRANKCASE, CRANKSHAFT AND CAMSHAFT GROUP CRANKSHAFT, CAMSHAFT AND TACHOMETER DRIVE
FIG.
QUANTITYPERASSEMBLY
ON
PART
REF. NUMBER
DESCRIPTION
ALL
\\\\\\\\\\\\\\\\
3 1 2 3 4 5 6 7 8 9 10
LW-15948 STD-1211 LW-15944 72065 72063 STD-2196 LW-15949 LW-15950 STD-2155 LW-16512
11
STD-1066
12 13 14 15 16 17 18
LW-15032 STD-2169 LW-15031 72078 STD-703 LW-16573 LW-16575
19 20 21 22
STD-8 STD-160 STD-1411 76628 LW-16843 72566 LW-15379
23 24
CRANKSHAFT ASSEMBLY PLUG, 2.00 dia. expansion CRANKSHAFT. Sub-assembly BUSHING, Propeller.flange BUSHING, Propeller flange DOWEL, 5/16 dia. x 51/64 long GEAR, Crankshaft LOCKPLATE, Crankshaft gear SCREW, 1/4-28 x 27/32 long CAMSHAFT, GEAR & TACHOMETERSHAFT ASSY. DOWEL, Stepped, 5/16 & 1/4 dia. x 13/32 long SHAFT ASSEMBLY, Tachometer ROLLPIN, 3/16 dia. x 1-1/8 long GEAR. Camshaft LOCKPLATE, 5/16 bolt x 1-21/64 spacing BOLT, 5/16-24 x 37/64 long, hex. hd. GASKET, Tachometer adapter TACHOMETERADAPTER & SEAL ASSEMBLY WASHER, 1/4 plain WASHER, 1/4 lock NUT, 1/4-20 SUPPORTASSEMBLY, Starter ring gear SUPPORTASSEMBLY, Starter ring gear GEAR, Starter ring, 12/14 pitch BAFFLE, Breather
Figure 3
Revised December, 1980
1-3
1 1 1 1 5 1 1 1 2 1 1 1 1 1 2 4 1 1 2 2 2 1 1 1 1
76
LYCOMING CRANKCASE,
SERIES 0-320-H PARTS CATALOG
CRANKSHAFT
AND CAMSHAFT
GROUP
CRANKCASE ATTACHING PARTS
FIG. REF. 4 1 2 3 4 5 6 7 8 9 10 11 12 13
PART NUMBER
QUANTITY PER ASSEMBLY
ON
DESCRIPTION
\\\\\\\\\\\\\\\\\ AN6-36A STD-33 STD-678 STD-596 STD-1215 STD-2103 STD-8 STD-160 STD-395 STD-8 LW-15063 STD-2047 STD-160
BOLT, 3/8-24 x 3-13/16 long,hex.hd. WASHER,3/8 plain WASHER,3/8 internal lock NUT, 3/8-24 plain BOLT, 1/4-20 x 1-1/4 long,hex.hd. BOLT, 1/4-20 x 3-3/8 long,hex.hd. WASHER,1/4 plain WASHER,1/4 internal lock BOLT, 1/4-20 x 1-1/4 hex.hd.,dr.hd. WASHER,1/4 plain EYE, Lifting BOLT, 1/4-20 x 1-3/8 long,hex.hd. WASHER, 1/4 internal lock
2 4 2 2 16 4 20 20 3 3 2
2 2
5,7,8
,7,8
4
I 9 10 Figure 4 1-4
LYCOMING
76
SERIES 0-320-H PARTS CATALOG
CRANKCASE, CRANKSHAFT AND CAMSHAFT OIL PUMP AND VACUUM PUMP DRIVE FIG. REF 5
PART NUMBER
5 6 7 8
LW-15345 STD-2057 LW-15263 STD-1063 LW-15262 LW-15068 LW-15347 LW-15070
9
LW-15143
10 11
25C-12 STD-557
12 13
66145 STD-208
14 15 16 17 18 19 20 21
STD-35 STD-475 STD-1410 8313 60430 STD-8 STD-160 STD-1411
1 2 3 4
DESCRIPTION SHAFT, Oil and vacuumpump drive KEY, 5/8 dia.x 5/32 Woodruff GEAR, Oil pump drive NUT, 9/16-18 x 9/32 high LOCKPLATE,Oil pump gear IMPELLER ASSY., Oil pump driven IMPELLER, Oil pump driving SEAL, "O" ring 3-1/2 ID x 7/64 sect. BODY ASSY., Oil pump and vacuum pump drive STUD, 1/4-20 x 1-1/2 long DOWEL,25/64 ID x 1/2 OD x 11/ hollow DOWEL, 1/4 dia.x 1/2 long OIL SEAL, 7/8 ID x 1-1/2 OD x 5/ wide WASHER,5/16 plain WASHER,5/16 internal lock NUT, 5/16 plain GASKET,Vacuum pump COVER, Vacuumpump WASHER,1/4 plain WASHER,1/4 internal lock NUT, 1/4-20 plain
GROUP
QUANTITY PER ASSEMBLY
ON
\\\\\\\\\\\\\\\\\\\\\\\ 1
1 1 1 1 1 1
1 1 1 4 4 4 1
1 4 4
I 2 13
8
5
3
Figure 5 1-5
Intentionally Left Blank
LYCOMING
0-320-1-1 76 SERIESPARTS CATALOG
CRANKCASE,CRANKSHAFTAND CAMSHAFT GROUP OIL FILTERAND FUEL PUMP ASSEMBLY
QUANTITYPERASSEMBLY
ON
PART FIG. REF. NUMBER
DESCRIPTION
ALL
6 1 2 3 4 5 6
LW-15046 LW-16118 LW-15047 LW-15163 LW-15167 MS124703
7 8
MS29512-8 LW-10637
9
LW-14685
10 11 12 13
LW-13904 LW-13905 LW-13906 STD-294
14
75944
15 16 17 18 19 20
69436 62415 62417 62817 LW-13224 MS20822-8
21
MS20823-8
22 23 24
61173 68974 STD-8 STD-8 STD-160 LW-25-3.00 STD-1646 25C-10 25C-18 25C-12 STD-1411 STD-1411 AN840-12D AN844-12D 60096 LW-15399 STD-33 STD-1882
25 26 27
28 29 30 31 32 33
1 1
GASKET, Oil filter adapter OIL FILTER ADAPTER& FITTING ASSY. OIL FILTERADAPTER ASSY. OIL FILTERADAPTER BYPASS VALVE ASSY., Oil filter INSERT, Heli-coil, 3/4-16 NF-3 x 1-1/4 long SEAL, Oil 21/32 OD x 3/32 sect. ELBOW, 1/2 tube x 3/4-16 thd., 90 ° adj. (inlet) ELBOW, 1/2 tube x 3/4-16 thd., 45 ° adj. (outlet) KIT, Converter plate, oil filter FILTERASSY., Oil, long (Champion) FILTERASSY., Oil, short GASKET, 7/8 OD x 5/8 ID x 3/32 annular VALVE ASSY., Temp. control, oil cooler bypass SPRING,Oil cooler bypass PLUNGER,Oil cooler bypass PLUG, Oil cooler bypass SCREENASSY., Oil pressure ADAPTER, Oil cooler ELBOW, 1/2 tube x 3/8 pipe, 90 ° (inlet) ELBOW, 1/2 tube x 3/8 pipe, 45 ° (outlet) GASKET, Oil pressure housing HOUSING, Oil pressure screen WASHER, 1/4 plain WASHER, 1/4 plain WASHER, 1/4 internal lock BOLT, 1/4-20 x 3.00 long, hex hd. BOLT, 1/4-20 x 2.00 long, hex hd. STUD, 1/4-20 x 1-1/4 long STUD, 1/4-20 x 2-1/4 long STUD, 1/4-20 x 1-1/2 long NUT, 1/4-20 plain NUT, 1/4-20 plain FITTING, Breather FITTING, Breather, 45° GASKET, Fuel pump FUEL PUMP, Dual diaphragm WASHER, 3/8 plain SCREW, 3/8-16 x 1-9/32 long, socket hd., dr. hd.
1980 RevisedDecember,
1 1 1
1 1
1
1 1 1
1 1 1 11 1 2 1 3 1 1 1 4 12 4 1 2 3 2 3 3 2 1 1 1
2
1-6
31
0
m
LYCOMING
76
SERIES 0-320-H PARTS CATALOG
CYLINDER, PISTON AND VALVE TRAIN CONNECTING ROD, PISTON AND PISTON RINGS
FIG. REF. 7 1 2 3 4 5 6 7 8 9 10
PART NUMBER 78030 LW-13923 78027 LW-12186 61662 LW-15357 LW-14078 60828 74241 73857
QUANTITY PER ASSEMBLY
ON
DESCRIPTION
4\\\\\\ 4 8 8 8 4 4 8 8 4
ROD ASSEMBLY,Connecting BUSHING,Connectingrod,upper BOLT, Connectingrod NUT, Connectingrod BEARING, Connectingrod PISTON,Compressionratio 9.0:1 PIN, Piston PLUG, Piston RING, Piston compression RING, Piston oil regulating
4
3
6
8
Figure 7 2-1
10
LYCOMING
76 SERIES 0-320-H PARTS CATALOG
CYLINDER, PISTON AND VALVE TRAIN CYLINDER ASSEMBLY FIG. REF. 8
PART NUMBER
1
LW-15318
2 3 4 5 6 7 8 9 10 11 12
72057 72058 76943 77160 66796 STD-1872 61261 68510 LW-15360 31-16 1102*
QUANTITY
ON
DESCRIPTION CYLINDER AND HEAD ASSY., Nitrided SEAT, Intake valve SEAT, Exhaustvalve GUIDE, Valve intake GUIDE, Valve exhaust INSERT, Spark plug 18-1-1/2mm INSERT, 1/8-27 heli-coil STUD, 5/16-18 x 1-1/2 long STUD, 5/16-18 x 1-1/16 long ELBOW, 1/4-18 x 1/2 tube,45° STUD, 5/16-18 x 2.00 long PLUG, 1/8-27 NPT
4 4 4 4 4 8 8 8 4 4 8 un
* - 1102 plugs are used as necessarywhen primersor fuel injection nozzlesare not used.
3 2
Figure 8 2-2
PER ASSEMBLY
LYCOMING
0-320-1-1 76 SERIESPARTS CATALOG CYLINDER, PISTON AND VALVE TRAIN VALVE ASSEMBLY
FIG. PART REF NUMBER
DESCRIPTION
QUANTITYPERASSEMBLY
ON ALL
9 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
LW-15314 74541 LW-11795 LW-11800 65441 LW-13323 LW-10077 LW-16475 60009 MS13997-3 LW-15316 LW-16055 LW-14995 LW-12272 STD-1411 LW-R-0.750-275 70310
VALVE, Intake VALVE, Exhaust (rotator type) SPRING, Valve, inner SPRING, Valve, outer SEAT, Valve spring, lower, intake SEAT, Valve spring, lower, exhaust SEAT, Valve spring, upper, intake SEAT, Valve spring, upper, exhaust (rotator type) KEY, Valve, intake KEY, Valve, exhaust (rotator type) CAP, Valve, exhaust (rotator type) TUBE, Push rod shroud SPRING, Shroud tube LOCKPLATE, Shroud tube NUT, 1/4-20 plain SEAL, Shroud tube SEAL, Shroud tube
ALL
4 4 8 8 4 4 4 4 8 8 4 8 4 4 4 8 8
16
17
Figure 9
Revised December, 1980
2-3
LYCOMING
0-320-1-1 76 SERIES PARTS CATALOG CYLINDER, PISTON AND VALVE TRAIN
PUSH RODS, ROCKER ARMS AND HYDRAULIC LIFTERS
FIG. PART REF. NUMBER
QUANTITYPERASSEMBLY
ON DESCRIPTION
ALL
10 1
LW-15315
ROD ASSEMBLY,
2 3
LW-15407 LW-15014
SEAT, Valve rocker arm - fulcrum ARM, Valve rocker
4
LW-15709
WASHER, 21/64
5 6
MS21045-5 75906
NUT, 5/16-14 self-locking GASKET, Rocker box cover
7 8
LW-15330 STD-1925
COVER, Rocker box SCREW, 1/4-20 x 5/8 long, pan. hd., self-locking RING, Oil seal, 3/32 dia. x 4-27/32 ID
9 10
71481 383-B
11 12
STD-2090 LW-16812
NUT, 3/8-24 NUT, 1/2-20
8 8 8
Push
ID x 1/64 thick
un
8 4 4 24 4 16 16 8
plain plain
LIFTER, Hydraulic
12
-5 6
2 8
Figure 10 2-4
Revised December, 1980
LYCOMING
76
SERIES 0-320-H PARTS CATALOG
CYLINDER, PISTON AND VALVE TRAIN CYLINDER HEAD DRAIN TUBES AND INTERCYLINDER BAFFLES FIG. REF. 11
PART NUMBER
1 2 3
LW-15359 LW-15358 STD-2117
4 5 6
LW-15361 LW-15362 LW-14680
7 8 9 10
72569 71611 71610 65321
DESCRIPTION
DESCRIPTION
NIPPLE,1/4-18x 1/2 ID hose HOSE, 1/2ID x 1-7/8long CLAMP,Hose9/16 to 1-1/16x 1/2 wide TIJBEASSY.,Cyl.hd.drain,cyl.no.1. TUBEASSY.,Cyl.hd.drain,cyl.no.2 TUBEASSY.,Cyl.hd.drain,cyl.no.3 and 4 BAFFLEASSY.,Intercylindler RETAINER,Intercylinder HOOK,Intercylinder baffle retainer GASKET,Exhaustflange(shiploose)
QUANTITY PER ASSEMBLY
4 4 8 1 1 2 2 2 2 4
7
4,5,6-
Figure 11 2-5
LYCOMING
76 SERIES 0-320-H PARTS CATALOG
IGNITION SYSTEM MAGNETO DRIVE, MAGNETO SYSTEM AND SPARK PLUG FIG. REF. 12 1 2 3 4 5 6 7 8 9
10 11 12 13 14
15
PART NUMBER
QUANTITY PER ASSEMBLY
ON
DESCRIPTION
\
LW-15096 LW-15097 68875 LW-12136 LW-12681
GEAR, Magneto RING, "0",13/16 ID x 5/64 dia.sect. RETAINER, Magnetodrive cushion CUSHION,Magnetodrive GASKET, Magnetoadapter and magneto LW-385124-115 MAGNETO IGNITION SYSTEM LW-382555-14 MAGNETO,D4RN-2021(impulse) LW-384406-303 HARNESS,Ignition 75965 CLAMP, Magneto STD-475 WASHER,5/16 internal lock STD-1410 NUT, 5/16-18 plain LW-14057 CLIP, One wire LW-14060 CLIP, Two wire 76734 ZIP STRAPS 1182-04 SPARK PLUG, Champion(RHM-38E) LW-382698 KIT, Magnetoground terminal
\\\ 1
1 1 2 1
1 1 1
2 2 2 2 2 13 8 1
See Bendix Service Parts List L-975 for magneto parts breakdown.
6
13
7
NOTE The abovespark plugs are those used in current production only; this list does not include additional spark plugs that are approvedfor use in these engines.See latest edition of Service Instruction No.1042for complete listing of all approvedspark plugs.
Figure 12 3-1
76 SERIES 0-320-H PARTS CATALOG
LYCOMING
ELECTRICAL SYSTEM ALTERNATOR BRACKET AND STARTING MOTOR
FIG. REF
PART NUMBER
13 1 2 3
LW-15350 STD-1858 LW-13351
4
STD-35
5 8
STD-1858 76908 STD-1858 LW-14207*
9 10 11 12
STD-35 STD-475 STD-2156 STD-1410
6 7
QUANTITY
ON
DESCRIPTION BRACKET,Alternator BOLT, 5/16-18 x 29/32 long,dr.hd. LINK, Alternator adjusting WASHER,5/16 plain BOLT, 5/16-18 x 29/32 long,dr.hd. STRUT, Alternator support BOLT, 5/16-18 x 29/32 long,dr.hd. STARTER, 24 volt (3.38:1 int.red.) (MZ-4218) WASHER,5/16 plain WASHER,5/16 internal lock BOLT, 5/16-18 x 1-5/32 long,hex.hd. NUT, 5/16-18 plain
PER ASSEMBLY
1 21 1 1 1 1
4 4 1 3
* - SeeSSP1471 for startermotor partsbreakdown.
2
5
7 7 8
Figure 13 4-1
76 SERIES 0-320-H PARTS CATALOG
LYCOMING
OIL SUMP AND INDUCTION
SYSTEM
OIL SUMP ASSEMBLY
FIG. REF. 14
PART NUMBER
1 2 3 4 5 6 7 8 9 10 11
LW-15071 LW-14293 68437 STD-8 STD-160 LW-25-5.63 STD-1204 STD-1975 STD-551 61378 STD-1045
12 13 14
61358 61548 STD-1901
14
13
ASSEMBLY QUANTITY PER ASSEMBLY
ON
DESCRIPTION GASKET,Oil sump SUMPASSY.,Oil STUD, 5/16-18 x 1-7/8 WASHER,1/4 plain WASHER,1/4 internal lock BOLT, 1/4-20 x 5-5/8 long,hexhd. BOLT, 1/4-20 x 15/16 long,hex.hd. BOLT, 1/4-20 x 2-9/16 long,hex.hd. PLUG, 1/2-14 NPT sq.hd.,drilled SCREEN,Oil suction GASKET, 1-1/4 ID x 1-1/2 OD x 3/32 annular PLUG, 1-1/4 x 12 hex.hd. PLATE, Name DRIVE, Stud,no.4 x 3/16 long
4-5-6
4-5-8 4-
10 12
Figure 14 5-1
1 1 4 14 14 5 7 2 1 1 1 1 1 4
\\\\\\\\\
76
LYCOMING
SERIES 0-320-H PARTS CATALOG
OIL SUMP AND INDUCTION SYSTEM INTAKE PIPES AND CARBURETOR FIG. REF 15
PART NUMBER
1 2 3
70485
4
STD-1269
5 6 7 8 9 10 11 12 13 14
71973 LW-14555 STD-8 STD-160 STD-1215 66224 LW-13659* STD-35 STD-1410 STD-1763
LW-14134 AN737TW-82
QUANTITY PER ASSEMBLY
ON
DESCRIPTION PIPE, Intake HOSE,Intake pipe CLAMP, 2-1/8 to 2-9/16 x 9/16 wide CLAMP, 1-7/8 to 2-1/4 x 9/16 wide GASKET,2 bolt flange,1-13/16ID FLANGE, Intake pipe,upper WASHER,1/4 plain WASHER,1/4 internal lock BOLT, 1/4-20 x 1-1/4 long,hex.hd., GASKET,Carburetor CARBURETOR(MS-4SPA) WASHER,5/16 plain NUT, 5/16-18 plain PALNUT
4 4 4 4
8 8 8 1 1 4 4
4
* - See MS609/631for parts breakdownof Marvel-Schebler carburetors.
1
7
7-8
I
I
12
Figure 15 5-2
LYCOMING
76 SERIES 0-320-H PARTS CATALOG O-320-H2AD SERVICE REPLACEMENT SET SEAL AND GASKET SET
LW-14815 STD-208 STD-294 STD-1045 8313 60096 LW-14260 61173 LW-15280 65321 66224 70310 71481 LW-15070 LW-15262 LW-15046 LW-15109 LW-15071 LW-15097 71973 72053 72075 72078 72091 72312 74065 75906 LW-13792 LW-12272 LW-12681 72220 70457
SEAL AND GASKET SET SEAL, Oil GASKET, Annular GASKET, Annular GASKET, Vacuum pump GASKET, Fuel pump SEAL, Tach shaft GASKET, Oil press.hsg. SEAL, Shroud tube GASKET, Exhaust flange GASKET, Carburetor SEAL, Shroud tube RING, Oil seal SEAL, "O"-ring LOCKPLATE, Oil pump gear GASKET, Oil filter adapter "O"-Ring GASKET, Oil sump "O"-Ring GASKET, Intake flange GASKET, Gov. drive "O"-Ring LOCKPLATE, Cam gear "O"-Ring RING, Oil seal RING, Oil level gage seal GASKET, Rocker box cover SEAL, Crankshaft oil LOCKPLATE, Shroud tube GASKET, Mag. GASKET, Oil filler ext. GASKET, Oil filler ext.
6-1
1 2 2 2 1 1 1 8 4 2 8 4 1 i 1 1 1 1 4 2 7 2 2 1 1 4 1 4 2 1 1
LYCOMING
76 SERIES 0-320-H PARTS CATALOG O-320-H2AD SERVICE REPLACEMENT SET
CYLINDER, PISTON AND RING ASSEMBLY LW-14814 MS13997-3 MS21045-5 STD-1411 STD-1925 60009 60828 65441 70310 71481 73857 74241 74541 75906 LW-10076 LW-10077 LW-11795 LW-11800 LW-12272 LW-13323 LW-13428 LW-14078 LW-15010 LW-15014 LW-15091 LW-15280 LW-15314 LW-15316 LW-15318 LW-15330 LW-15357
CYLINDER, PISTON AND RING KIT KEY, Valve exhaust NUT, Self-locking NUT, Plain SCREW, Self-locking KEY, Valve intake PLUG, Piston pin SEAT, Valve spring lower SEAL, Shroud tube RING, Oil seal RING, Piston RING, Piston compression VALVE, Exh (rotator type) GASKET, Rocker box cover SEAT, Valve spring, upper exhaust SEAT, Valve spring, upper intake SPRING, Valve inner SPRING, Valve outer LOCKPLATE, Shroud tube SEAT, Valve spring, lower exhaust SPRING, Shroud tube PIN, Piston SEAT, Valve rocker arm ROCKER ASSY., Valve WASHER SEAL, Shroud tube VALVE, Intake CAP, Valve stem, exhaust CYLINDER ASSY., Nitride COVER, Rocker box PISTON
6-2
2 2 1 6 2 2 2 2 1 1 2 1 1 1 1 2 2 1 1 1 1 2 2 6 2 1 1 1 1 1
LYCOMING
76 SERIES 0-320-H PARTS CATALOG NUMERICAL
PARTNO. AN6-36A AN737TW-82 MS9048-224 MS13997-3 MS16624-1087 MS20822-8 MS20823-8 MS21045-5 STD-8 STD-8 STD-8 STD-8 STD-8 STD-33 STD-33 STD-33 STD-35 STD-35 STD-35 STD-160 STD-160 STD-160 STD-160 STD-160 STD-208 STD-294 STD-395 STD-405 STD-425 STD-475 STD-475 STD-475 STD-475 STD-551 STD-557 STD-557 STD-596 STD-678 STD-678 STD-703 STD-1045 STD-1045 STD-1063 STD-1066 STD-1204 STD-1211 STD-1215 STD 1215 STD-1269 STD-1339
PARTNAME Bolt Clamp Roll Pin Key Ring Elbow Elbow Nut Washer Washer Washer Washer Washer Washer Washer Washer Washer Washer Washer Washer Washer Washer Washer Washer Seal Gasket Bolt Plug Washer Washer Washer Washer Washer Plug Dowel Dowel Nut Washer Washer Bolt Gasket Gasket Nut Dowel Bolt Plug Bolt Bolt Clamp Plug
PAGENO. 1-4 5-2 1-1 2-3 1-3 1-6 1-6 2-4 1-4 1-5 1-6 5-1 5-2 1-2 1-4 1-6 1-5 4-1 5-2 1-4 1-5 1-6 5-1 5-2 1-5 1-6 1-4 1-1 1-2 1-5 4-1 3-1 5-2 5-1 1-1 1-5 1-4 1-2 1-4 1-3 1-2 5-1 1-5 1-3 5-1 1-3 1-4 5-2 5-2 1-1
INDEX PARTNO. STD-1410 STD-1410 STD-1410 STD-1411 STD-1411 STD-1592 STD-1646 STD-1858 STD-1872 STD-1901 STD-1902 STD-1925 STD-1975 STD-2047 STD-2057 STD-2090 STD-2103 STD-2117 STD-2156 STD-2169 25C-10 25C-12 31-16 38-13 50-15 383-B 1028-B 1102 1102 8313 1182-D4 60009 60096 60430 60828 61173 61261 61261 61358 61378 61548 61662 62415 62417 62817 65098 65321 65441 66145 66145
7-1
PARTNAME Nut Nut Nut Nut Nut Bolt Bolt Bolt Insert DriveStud Bolt Screw Bolt Bolt Key Nut Bolt Clamp Bolt Roll Pin Stud Stud Stud Stud Stud Nut Ball Plug Plug Gasket SparkPlug Key Gasket Gasket Plug Gasket Stud Stud Plug Screen Nameplate Bearing Plunger Plug Screen Cover Gasket Seat Dowel Dowel
PAGENO. 1-5 4-1 3-1 1-5 2-3 1-6 1-6 4-1 2-2 5-1 5-2 24 5-1 14 1-5 24 14 2-5 4-1 1-3 1-1 1-5 2-2 1-1 1-1 24 1-2 1-1 2-2 1-5 3-1 2-3 1-6 1-5 2-1 1-6 1-1 2-2 5-1 5-1 5-1 2-1 1-6 1-6 1-6 1-6 2-5 2-3 1-3 1-5
LYCOMING
76
SERIES 0-320-H PARTS CATALOG
NUMERICAL INDEX (CONT.) PARTNO. 66224 66796 67528 68437 68510 68668 68875 68974 69436 70310 70457 70485 71481 71610 71611 71973 72057 72058 72063 72065 72075 72078 72091 72220 72312 72566 72569 73857 74241 74541 75675 75906 75965 76529 76628 76734 76908 76943 77160 78027 78030 LW-25-5.63 LW-38-2.75 LW-10076 LW-10077 LW-11795 LW-11800 LW-12136 LW-12186 LW-12272
PARTNAME Gasket Insert Stud Stud Stud Spring Retainer Housing Spring Seal Gasket Pipe Seal Hook Retainer Gasket Seat Seat Bushing Bushing Seal Lockplate Seal Gasket O-ring Gear Batfle Ring Ring Valve Extension Gasket Clamp Plug Support Zip Strap Strut Guide Guide Bolt ConnectingRod Bolt Bolt Seat Seat Spring Spring Cushion Nut Lockplate
PAGENO. 5-2 2-2 1-1 5-1 2-2 1-2 3-1 1-6 1-6 2-3 1-2 5-2 2-4 2-5 2-5 5-2 2-2 2-2 1-3 1-3 1-2 1-3 1-2 1-2 1-3 1-3 2-5 2-1 2-1 2-3 1-2 2-4 3-1 1-2 1-3 3-1 4-1 2-2 2-2 2-1 2-1 5-1 12 2-3 2-3 2-3 2-3 3-1 2-1 2-3
7-2
PARTNO. LW-12681 LW-13224 LW-13290 LW-13291 LW-13323 LW-13351 LW-13428 LW-13659 LW-13792 LW-13923 LW-14057 LW-14060 LW 14078 LW14105 LW-14134 LW-14207 LW-14260 LW-14293 LW-14555 LW-14658 LW-14659 LW-14680 LW-14784 LW-15010 LW-15014 LW-15031 LW-15032 LW-15045 LW-15046 LW-15063 LW-15068 LW-15070 LW-15071 LW-15091 LW-15098 LW-15087 LW-15143 LW-15168 LW-15260 LW-15261 LW-15262 LW-15263 LW-15269 LW-15276 LW-15277 LW-15280 LW-15281 LW 15314 LW-15315 LW-15316
PARTNAME Gasket Adapter Bracket Bracket Seat Link Spring Carburetor Seal Bushing Clip Clip Pin Bearing Hose Starter Seal SumpAssy. Flange Crankshaft Crankshaft Assy. Tube Gage Seat Arm Gear Shaft Bushing Gasket Eye Impeller Seal Gasket Washer Gear Ring Body Tappet Retainer Adapter Lockplate Gear Gear Stud Stud Seal Tube Valve PushRod Cap
PAGENO. 3-1 1-6 1-2 1-2 2-3 4-1 2-3 5-2 1-2 2-1 3-1 3-1 2-1 1-2 5-2 4-1 1-3 5-1 5-2 1-3 1-3 2-5 1-2 24 2-4 1-3 1-3 1-1 1-6 14 1-5 1-5 5-1 2-4 3-1 3-1 1-5 2-4 1-3 1-3 1-5 1-5 1-3 1-1 1-1 2-3 2-3 2-3 2-4 2-3
LYCOMING
76
SERIES 0-320-H PARTS CATALOG
NUMERICAL INDEX (CONT.) PARTNO. LW-15318 LW-15330 LW-15336 LW-15343 LW-15345 LW-15347 LW-15350 LW-15357 LW-15358
PARTNAME CylinderAssy. Cover Camshaft Crankcase Shaft Impeller Bracket Piston Hose
PAGENO.
2-2
PARTNO. LW-15359 LW-15360 LW-15361 LW-15362 LW-15364 LW-382555-14 LW-382698 LW-384406-303 LW-385124-115
2-4 1-3 1-1 1-5 1-5 4-1 2-1 2-5
7-3
PARTNAME
PAGENO.
Nipple Elbow Tube Tube Breather Magneto Kit, MagnetoTerm. Harness Magneto
2-5 2-2 2-5 2-5 1-6 3-1 3-1 3-1 3-1
