The Honda GXV160 is a 163 cc (10.0 cu-in) single-cylinder air-cooled four-stroke internal combustion small gasoline engine with vertical shaft manufactured by Honda Motor Company for general-purpose applications, such as lawn mowers, commercial lawn and garden equipment, forestry equipment, construction and industrial equipment, agricultural equipment.
The Honda GXV160 engine has an OHV (overhead valve) design; high compression ratio for better fuel efficiency; horizontal type carburetor with butterfly valve; centrifugal mechanical governor; heavy-duty recoil or electric starter and transistorized magneto ignition system.
The cylinder bore is 68.0 mm (2.7 in) and the piston stroke is 45.0 mm (1.8 in), compression ratio rating is 8.0:1. The engine produced 5.5 HP (4.0 kW) of horsepower at 3,600 rpm and 10.8 Nm (1.1 kg·m, 7.96 ft·lb) of torque at 2,500 rpm.
General information
| Engine Specifications | |
| Model | GXV160 |
| Type | 4-stroke, OHV, single cylinder |
| Displacement | 163 cm 3 (9.9 cu-in) |
| Max. horsepower | 5.5 HP (4.4 kW) at 3,600 rpm |
| Max. torque (crank PTO) | 10.8 Nm (1.1 kg·m, 7.96 ft·lb) at 2,500 rpm |
| Carburetor | Horizontal type, butterfly valve |
| Cooling system | Forced-air |
| Ignition system | Transistorized magneto ignition |
| Lubricating system | Forced splash |
| Starting system | Recoil starter / Self starter |
| Stoping system | Ignition primary circuit ground |
| Fuel used | Unleaded gasoline (octane number 86 or higher) |
| Fuel tank capacity | 2.0 L (0.52 US qt) |
| Fuel consumption | 250 g/HPh |
| PTO shaft rotation | Counterclockwise (from PTO shaft side) |
Cylinder Block and Head
The Honda GXV160 has cast iron cylinder sleeve, ball bearing supported forged steel crankshaft, improved piston design. The piston has two compression rings and one oil ring. Precision camshaft design offers precise valve timing and optimal valve overlap for better fuel efficiency.
| Cylinder block | ||
| Compression ratio: | 8.0:1 | |
| Bore x Stroke | 68 X 45 mm (2.7 x 1.8 in) | |
| Sleeve internal diameter | 68.000 mm (2.677 in) | |
| Piston skirt outer diameter | 67.985 mm (2.6766 in) | |
| Number of piston rings (compression / oil): | 2 / 1 | |
| Ring side clearance | Top | 0.030-0.065 mm (0.0012-0.0026 in) |
| Second | 0.030-0.065 mm (0.0012-0.0026 in) | |
| Ring end gap | Top/Second | 0.20-0.40 mm (0.008-0.016 in) |
| Oil | 0.15-0.35 mm (0.006-0.014 in) | |
| Ring width | Top/Second | 1.5 mm (0.06 in) |
| Oil | 2.5 mm (0.10 in) | |
| Connecting rod small end ID | 18.005 mm (0.7087 in) | |
| Connecting rod big end ID | 30.02 mm (1.182 in) | |
| Piston pin outer diameter | 18.0 mm (0.7087 in) | |
| Crankshaft crank pin outer diameter | 29.98 mm (1.180 in) | |
| Cylinder Head | ||
| Warpage (limit) | 0.10 mm (0.004 in) | |
| Valve Arrangement: | OHV | |
| Valves: | 2 | |
| Stem outer diameter (standard): | INTAKE | 5.480 mm (0.216 in) |
| EXHAUST | 5.440 mm (0.214 in) | |
| Valve spring free length: | 34.0 mm (1.339 in) | |
| Camshaft outer diameter: | 13.984 mm (0.5506 in) | |
| Cam height: | INTAKE | 27.70 mm (1.09 in) |
| EXHAUST | 27.75 mm (1.093 in) | |
Tightening torque specs
| Tightening torque specs | |
| Connecting rod lower cap | 12 Nm; 1.2 kg·m; 9 ft·lb |
| Cylinder head bolt | 24 Nm; 2.4 kg·m; 17 ft·lb |
| Flywheel nut | 75 Nm; 7.5 kg·m; 54 ft·lb |
| Pivot adjusting nut | 10 Nm; 1.0 kg·m; 7 ft·lb |
| Pivot bolt | 24 Nm; 2.4 kg·m; 17 ft·lb |
| Oil filter extension | 10 Nm; 1.0 kg·m; 7 ft·lb |
| Oil drain bolt | 18 Nm; 1.8 kg·m; 13 ft·lb |
| Oil pan | 24 Nm; 2.4 kg·m; 17 ft·lb |
| Standard torque values | |
| Bolt, nut (5 mm) | 5.5 Nm; 0.55 kg·m; 4.0 ft·lb |
| Bolt, nut (6 mm) | 10 Nm; 1.0 kg·m; 7 ft·lb |
| Bolt, nut (8 mm) | 24 Nm; 2.4 kg·m; 17 ft·lb |
| Bolt, nut (10 mm) | 37.5 Nm; 3.75 kg·m; 27 ft·lb |
| Bolt, nut (12 mm) | 55 Nm; 5.5 kg·m; 40 ft·lb |
Service Information
| Engine | |
| Maximum speed | 3,200 ± 100 rpm |
| Idle speed | 1,700 ± 150 rpm |
| Cylinder compression | 5.0-8.0 kg/cm2 (71-114 psi) at 600 rpm |
| Valve clearance | |
| Intake valve clearance | 0.15±0.02 mm (0.006±0.001 in) |
| Exhaust valve clearance | 0.20±0.02 mm (0.008±0.001 in) |
| Oil system | |
| Oil type | Honda 4-stroke or an equivalent (SE or SF) |
| Recommended oil | SAE 10W-30 |
| Oil capacity | 0.6 L (0.63 US. qt, 0.53 Imp. qt.) |
| Carburetor | |
| Main jet | #70 |
| Float height | 12.2-15.2 mm (0.48-0.60 in) |
| Pilot screw opening | 2 turns out |
| Ignition system | |
| Ignition timing | 20° B.T.D.C. (Fixed) |
| Spark plug | NGK: BP5ES, BPR5ES NIPPONDENSO: W16EP-U, W16EPR-U |
| Spark plug gap | 0.7-0.8 mm (0.028-0.031 in) |
| Primary ignition coil resistance | 0.7-0.9 Ω |
| Secondary ignition coil resistance | 6.3-7.7 kΩ |
| Ignition coil air gap | 0.4 ± 0.2 (0.016 ± 0.008) |
Author:
I AM LOOKING FOR A CARB BREAKDOWN FOR A GXV160
How many different output shafts are on these?
Does this engine come in any other colors
Just a little confused as to Engine speed rated at 3200 RPM, and horse power rated at 3600RPM and my mower HRU216 using same motor is only generating 2800RPM at full throttle.
In the words of the late Professor Julius Sumner Miller why is it so?
THIS ENGINE HAS MAX 4.3HP, GENUINE
I am looking the cover where the starter rope fits on?
Honda 5.5 OHV