parts manual for onan engines b43m ga016

. .“ .- ~~~~ ~“”””” ““’” ;... .... . ..- .— Par”& ~ “.” .“. Manua, ..::... B43M’=GAO16 Industrial Engines . . ,... -,, .... ... . ~.—-m<-,= ‘4 ,., .- . 965-0254 11-88 (Spec A-C) Replaces 5-85 (Spec A-C) Printed in U.S.A. ~

—.— /<-. ‘ \ -. For parts or service, contact-the dealer frorn._whorn you purchased this equipment or. refer to your Nearest ,- Authorized Onan Parts and Service Center. To avoid errors or delay in”filling your parts order, always give the MODEL, ~PEC” NO. and SERIAL NO. -from the Onan nameplate. ~ .. 0 0 MODEL AND SPEC NO. SERIAL NO. .= ,.-. ,,,’ , I. M-1149 For handy reference, insert “YOUR” nameplate information in the spaces above. .,,. Std. #36D —.

Index Adapter, Clutch 46 Adapter, Exhaust (Flange Type) 49 Adapter, Governor Arm 26,34 Adapter, Oil Filter 36,41 Air Cleaner-Remote 45 Ammeter 34,35 Arm, Governor Control 25 Armature, Starter 21.37,38 Baffle, Breather Valve 4 Ball, Governor 11 Base, Oil 8 Base, Remote Oil Filter 36 Bearing, Camshaft 4 Bearing, Crankshaft 4 Block, Cylinder 4 Block, Terminal (4 Place) 43 Box, Breaker 19,20,42 Bracket, Governor Control 12,26 Bracket, Lifting 48 Brush, Ground-Starter 21,37,38 Cable, Choke 34.35 Cable, Spark Plug 19,44 Camshaft 11 Cap, Fuel Tank 33 Carburetor Components (Gasoline) 16,28,31,32 Carburetor, Gasoline 14,27 Clamp, Muffler 49 Coil, Ignition 19,44 Condenser, Ignition 20,42 Cover, Air-Cleaner 14,48 Cover, Breaker Box 20,42 /T Cover, Dust-Starter 21,38 Cover, Valve 4 Crankshaft 10 Drain, Oil Filter 41 Element, Air Cleaner 14 Extension, Governor Arm 35 Filter, Breather Tube 14,45 Filter, Oil 41,48 Flywheel 10 Gasket, Breaker Box 19,20,42 Gasket, Cylinder Head 4 Gasket, Exhaust Adapter 49 Gasket, Oil Base 8 Gasket, Valve Cover 4 Gauge, Oil Pressure 34,35 Gear, Camshaft 11 Gear, Crankshaft 10 Gear, Ring 10 Gearcase 7 Governor 12,25,26 Guard, Flywheel 10,48 Harness, Wiring 35 Head, Cylinder 4 Holder, Brush 21,38 Hose, Fuel 27 Hose, Vacuum 14,27 Housing, Air 18 Housing, Air Cleaner 14 Housing, Blower 18 Housing, Cylinder 18 Housing, Starter 21,38 Kit, Adapter - Remote Air Cleaner 45 Kit, Alternator Connector 23,24 Kit, Clutch 46 Kit, Fuel Tank 33 Kit, Gasket - Engine 4 Kit, Repair - Carburetor 16,28,31,32 Kit, Repair – Starter 21,38 Kit, Tuneup - Ignition 20,42 Lever, Choke 47 Lever, Throttle Control 34)35 Line, Fuel - Gasoline 33 Line, Oil - Flexible 34,35 Manifold, Exhaust 49 Manifold, Intake 14 Muffler, Exhaust 49 Numerical Index 50,51,52,53 Panel, Control 34,35 Pipe, Exhaust 49 Piston 6 Plate, Bearing - Rear 4 Plug, Spark 19,44 Pump, Fuel-Electric (Gasoline) 40 Pump, Fuel-Vacuum (Gasoline) 27,30 Pump, Oil 8 Regulator, Voltage 23,24 Relay, Start Solenoid 21,37,38 Ring, Piston 6 Rod, Connecting 6 Rod, Control-Governor 12,25 Seal, Oil 4,7 Seat, Valve 4 Sender, Oil Pressure (Electric) 48 Spring, Governor 12,25,26,34,35 Starter 21,38 Starter Components 21,37,38 Starter, Recoil 39 Stator 23,24,44 Strap, Fuel Tank 33 Switch, Ignition 34,35 Switch, Pressure-Oil 48 Tank, Fuel 33,48 Tappet, Valve 4 Tube, Air Intake 14,48 Tube, Breather 14,45 Tube, Oil 4 Tube, Vacuum Port 7,27 Valve, Exhaust 4 Valve, Intake 4 Valve, Shut-Off 33 Wrapper, Filter Element 48 1

Introduction This cata~og applies to the Standard B43M-GA016 Engines. Parts are arranged in groups of related items. Each illustrated part is identified bv a reference number /- corresponding to the same reference number in the parts ‘list for that group, Parts ~. illustrations are typical. Using the MODEL and SPEC NO. from the nameplate, select the Parts that apply to your engine. Unless otherwise mentioned in the description, parts are in’cerch.angeable between model’s, Right and left sides are determined by facing the blower end (front) of the engine. WARNING This engine is not designed or intended far use in any type of aircraft. Use of this engjne in alrcra-ft may result in engine failure and cause serious bodily Injury, death andlor property damage. NOTICE ! Items referenced as optional indicate part is factory installed and ma not be a ?7 licable to all models. Y For field conversions additional par s are usua y required. ,, ,- 2

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Cylinder Block -30 r _,/ 4 ‘2 1 .14 ./’- ‘, .-.. -. ’45 ~,- C.1082 ,.>, 40 / 4

Cylinder Block n, REF PART QTY NO. NO. USED PART DESCRIPTION Block Assembly, Cylinder (All Replacement Cylinder Block Assemblies Use Intake Valve Seals and Include Parts Marked *) Engines with Standard Rear Bearing Plate Engines with 4 Boss Bearing Plate Engines with SAE A or SAE B Rear Bearing Plate (Does Not Include Rear Bearing Plate) *Plug, Welch (1–5/8”) Camshaft Opening *Screw, Cap - Hex Head (3/8-16 X 1-1/4”) *Shim, Crankshaft End Play (.005”) Bearing, Crankshaft - Rear (Includes Thrust Washer) *Standard .002” Undersize .010” Undersize .020” Undersize ,030” Undersize *Washer, Thrust *Gasket, Bearing Plate Plate, Bearing - Rear *Standard Optional - 4 Boss Optional - SAE B Optional - SAE A *Bearing, Camshaft Seal, Oil - Crankshaft Rear *Pin, Drive - Bearing Stop *Tube, Oil - Cylinder Block Insert, Valve Seat - Exhaust *Standard .002” Oversize .005” Oversize .010” Oversize .025” Oversize Insert, Valve Seat – Intake *Standard .002” Oversize .005” Oversize .010” Oversize .025” Oversize Bearing, Crankshaft - Front F 1anged *Standard ,002” Undersize .010” Undersize ,020” Undersize .030” Undersize Guide, Valve Engines w/o Intake Valve Seals Intake Exhaust Engines with Intake Valve Seals *Exhaust *Intake REF PART NO. NO. QTY PART USED DESCRIPTION 2 *Gasket Intake Valve Guide Vacuum Port Tube - Early Models Plug, Breather Hole - Later Models *Washer, Lock - Spring (3/8”) *Pin, Gear Cover Alignment Reed, Breather Valve Baffle, Breather Valve Spring, Breather Valve Cover, Valve - RH Cover, Valve - LH Gasket, Valve Cover Tappet, Valve Standard ,002” Oversize .005” Oversize Valve, Intake Valve, Exhaust Screw, Cap - Hex Head (1/4-20 X 1-3/4”) Spring, Valve Lock, Valve Spring Seal, Valve - Intake (Optional) Screw, Socket – Set (3/8-16 X 5/8”) Gasket, Cylinder Head Standard Optional (Graphoil) Head, Cylinder Right Side - Spec A Left Side - Spec A Left Side - Begin Spec B Right Side - Begin Spec B Roto Cap - Valve Washer, Flat (1/4” Screw) Washer, Flat (5/16” Screw) Screw, Cap - Hex Head (Special) 5/16-18 X 1-5/8” 2“ Long Washer, Flat - Copper (1/4” Screw) Plug, Core Hole Washer, Intake Valve Spring Retainer (Optional) Kit, Gasket Valve Grind/Carbon Removal (Standard Head Gaskets) Valve Grind/Carbon Removal (Graphoil Head Gaskets) Gasket Kit, Complete (Standard Head Gaskets) Gasket Kit, Complete (Graphoil Head Gaskets) 1 17 110-0068 18 149-1299 517-0120 1 1 110-3148 1 110-3151 1 110-3154 1 19 20 21 22 23 24 25 26 27 850-0050 516-0141 123-1175 123-1173 123-1174 110-1879 110-2274 110-1921 5 2 1 1 1 1 1 3 517-0048 1 BOO-0051 5 104-0776 AR 2 3 4 5 115-0006 115-0006-02 115-0006-05 110-2368 110-1955 800-0010 110-0539 110-0639 509-0168 4 4 4 28 29 30 2 2 .2 101-0450 1 101-0450-02 1 101-0450-10 1 101-0450-20 1 101-0450-30 1 104-0575 2 101-0415 1 31 32 33 4 8 2 34 803-0071 2 6 7 8 36 110-2287 110-3181 2 2 101-0439 1 101-0551 1 101-0430 1 101-0437 1 101-0405 2 509-0041 1 516-0072 4 120-0735 1 37 110-2564 110-2563 110-2561 110-2562 110-0904 526-0018 526-0122 800-0540 800-0571 526-0063 1 1 1 1 4 1 18 1: 11 12 13 38 39 40 41 110-1824 2 110-1824-02 2 110-1824-05 2 110-1824-10 2 110-1824-25 2 12 6 2 42 14 43 44 517-0067 110-0893 1 2 110-0197 2 110-0197-02 2 110-0197-05 2 110-0197-10 2 110-0197-25 2 45 168-0140 168-0183 168-0153 168-0182 1 15 1 101-0432 1 101-0432-02 1 101-0432-10 1 101-0432-20 1 101-0432-30 1 1 1 .. 16 ,.- * – parts Included in the Cylinder Block Assembly. 110-1807 2 110-1807 2 110-1807 2 110-3161 2 /-. 5

Piston and Rod /1 CT-1055 REF PART NO. NO. . 1 112-0186 112-0186-05 112.-Olg6-lO 112-0186-20 112-0186’-30 112-0186-40 2 112-0229 3 518-0311 4 113-0189 113-0189-05 113-0189-10 113-0189-20 113-0189--30 113-0189-40 QTY USED 2 2 2 2 2 2 2 4 2 2 2 2 2 2 PART DESCRIPTION Piston and Pin (Includes Retaining Rings) Standard .005” Oversize ,010” Oversize ,020” Oversize ,030” Oversize .040” Oversize Pin, Piston Ring, Retaining Ring Set, Piston Standard .005” Oversize .010” Oversize .020” Oversize ,030” Oversize ,04~” Oversize REF PART QTY NO. NO. USED 5 -114-0300 2 114-0300-10 2- 114-0300-20 2 114-0300-30 2 6 114-0240 4 7 870-0302 4 .! ,- PART DESCRIPTION Rod, Connecting (Includes Bolt and Nut) Standard ..010” Undersize .020” Undersize .030” Undersize Bolt, Connecting Rod (Special) N“ut, Hex - Crown Lock (5/16-24) \ ! 1 I ,/— I 1 , ,. .-. 6

Gearcase f /2 /8 10 I REF NO. PART NO. QTY PART USED DESCRIPTION REF PART NO. NO. QTY USED PART DESCRIPTION 1 103-0738 Gearcase Assembly (Includes Parts Marked *) *Bearing, Governor Shaft *Shaft and Arm, Governor *Yoke, Governor Shaft *Screw, Machine - Pan Head (#8-32 X 3/8”) *Pin, Dowel - Governor Cup stop *Seal, Oil - Governor Shaft *Ball, Bearing - Governor Shaft 1: 11 509-0040 103-0408 *Seal, Oil - Crankshaft Gasket, Gearcaae Mounting Screw, Cap - Hex Head 5/16-18 X 1-3/4” 5/16-18 x 2-3/4” (Special) Washer, Flat – Copper (5/16” Screw) *Tube, Vacuum Port *Clamp, Vacuum Port Cap *Cap, Vacuum Port 1 2 510-0105 3 150-1470 . 4 150-1187 5 815-0046 1 1 1 2 800-0032 800-0545 526-0065 4 1 5 12 13 16 17 149-1299 503-0301 149-1321 1 1 1 6 516-0130 1 ,. 7 509-0008 8 510-0014 1 1 * – parts Included in 103-0738 Gearcase Assembly.

. . . Oil System -. \ 16 t 17 ‘1 /’ --” ,/ ( \ 3 .. ‘w < — — .— ,----- 8 ,—.

parts manual for onan engines b43m ga016

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