The Honda GXV140 is a 135 cc (8.2 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.
The Honda GXV140 engine has an OHV (overhead valve) design; horizontal type carburetor with butterfly valve; centrifugal mechanical governor; heavy-duty recoil starter and CDI (Capacitor Discharge Ignition) system.
The cylinder bore is 64.0 mm (2.5 in) and the piston stroke is 42.0 mm (1.7 in), compression ratio rating is 8.0:1. The GXV140 engine produced 5.0 HP (3.7 kW) of horsepower at 3,600 rpm and 10.3 Nm (1.05 kg·m, 7.6 ft·lb) of torque at 2,500 rpm.
General information
| Engine Specifications | |
| Model | GXV140 |
| Type | 4-stroke, OHV, single cylinder |
| Displacement | 135 cm 3 (8.2 cu-in) |
| Max. horsepower | 5.0 HP (3.7 kW) at 3,600 rpm |
| Max. torque (crank PTO) | 10.3 Nm (1.05 kg·m, 7.6 ft·lb) at 2,700 rpm |
| Carburetor | Horizontal type, butterfly valve |
| Cooling system | Forced-air |
| Ignition system | CDI |
| Lubricating system | Forced splash |
| Starting system | Recoil starter |
| Stoping system | Ignition primary circuit ground |
| Fuel used | Unleaded gasoline (octane number 86 or higher) |
| Fuel tank capacity | 1.0 L (0.26 US qt) |
| Fuel consumption | 250 g/HPh |
| PTO shaft rotation | Counterclockwise (from PTO shaft side) |
Cylinder Block and Head
| Cylinder block | ||
| Compression ratio: | 8.0:1 | |
| Bore x Stroke | 64 X 42 mm (2.5 x 1.7 in) | |
| Sleeve internal diameter | 64.00 mm (2.52 in) | |
| Piston skirt outer diameter | 63.985 mm (2.5190 in) | |
| Number of piston rings (compression / oil): | 2 / 1 | |
| Ring side clearance | Top | 0.015-0.045 mm (0.0006-0.0018 in) |
| Second | 0.015-0.045 mm (0.0006-0.0018 in) | |
| Ring end gap | Top/Second | 0.20-0.40 mm (0.008-0.016 in) |
| Ring width | Top/Second | 1.5 mm (0.06 in) |
| Connecting rod small end ID | 13.005 mm (0.5120 in) | |
| Connecting rod big end ID | 26.02 mm (1.024 in) | |
| Piston pin outer diameter | 13.0 mm (0.5118 in) | |
| Crankshaft crank pin outer diameter | 25.98 mm (1.023 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: | 30.5 mm (1.2007 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 | 52 Nm; 5.2 kg·m; 38 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 drain bolt | 18 Nm; 1.8 kg·m; 13 ft·lb |
| Oil pan bolt | 12 Nm; 1.2 kg·m; 9 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 | 3,100 ± 100 rpm |
| Idle speed | 2,100 ± 150 rpm |
| Cylinder compression | 6.0-8.5 kg/cm2 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 | #60 |
| Float height | 12.2-15.2 mm (0.48-0.60 in) |
| Pilot screw opening | 1/2 turns out |
| Ignition system | |
| Ignition timing | 25° B.T.D.C. |
| Spark plug | NGK: BP5ES, BPR5ES NIPPONDENSO: W16EP-U, W16EPR-U |
| Spark plug gap | 0.7-0.8 mm (0.028-0.031 in) |
Author:
I NEED TO KNOW THE PRICE ON THIS ENGINE GXV 140 135CM
NECESITO SABER EL PRECIO DE ESTE MOTOR GXV 140 135CM
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What are the tolerances for bore and piston on a honda GXV140-135
These Specs are very helpful, but it’s not likly that I’d ever find them again. Would it be possible to download them to a PDF or xcel file so that I could file them with the Honda Manuel?
By the way, thanks Honda for not publishing this with my mower… way to go.