Kohler K482, K532, K582, K662 Engines Service & Repair Manual (P/N TP-1288)
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Kohler Models Covered & Key Technical Specifications
Models: K482, K532, K582, K662
Sub-models / Variants: 18 HP (K482), 20 HP (K532), 23 HP (K582), 24 HP (K662), Industrial, Electric Plant
Trade Names: Kohler Twin Cylinder Engines
Model Years: 1969–1982
Serial Numbers: 9224060 (early units before this serial utilize different governor setups)
Technical Data:
- Engine Configuration: 2-cylinder, 4-cycle, air-cooled, horizontally opposed
- Displacement: 47.70 cu. in. (K482), 53.70 cu. in. (K532), 57.73 cu. in. (K582), 67.20 cu. in. (K662)
- Max Operating RPM: 3600 RPM (K482/K532/K582), 3200 RPM (K662)
- Bore x Stroke: 3.251 x 2.875 (K482), 3.375 x 3.000 (K532), 3.500 x 3.000 (K582), 3.625 x 3.250 (K662)
- Fuel System Types: Gasoline (Sidedraft/Downdraft), LP Gas, Natural Gas
- Ignition Systems: Battery (all models), Magneto (K662), 15 Amp / 30 Amp Alternator Charging Systems
- Clutch Type: Wet disc type with oil splash lubrication
Kohler Manual Features & Content Preview
- Covers the 1969–1982 Kohler K482, K532, K582, and K662 twin-cylinder engines, detailing maintenance, fuel system service, and component overhaul requirements for industrial and electric plant configurations
- Official 92-page Kohler OEM publication (TP-1288, originally published May 1982)
- Contains 47 exploded-view diagrams, 15 troubleshooting analysis tables, and comprehensive torque-value specification charts for cylinder head and connecting rod fasteners
- Provides factory-authorized benchmarks for overhauling the K-series, including specific adjustment procedures for variable-speed and constant-speed governor systems
Engine Service and Analysis
The official Kohler service manual documents essential maintenance and technical specifications across the entire K-series twin-cylinder range. You will find detailed teardown and inspection processes for the cylinder block, crankshaft, pistons, and valve mechanisms. Need camshaft or connecting rod clearances? They are clearly mapped out. The documentation specifically addresses the distinct technical requirements for both sleeve-bearing and ball-bearing crankshaft assemblies found throughout the engine's production run.
Fuel and cooling system sections cover sidedraft and downdraft carburetors, along with specialized natural gas and LPG systems. Electrical diagnostics are heavily detailed. The manual provides diagnostic wiring diagrams for 15-amp and 30-amp alternator systems and walks through bench-testing procedures for starting motors, batteries, and voltage regulators.
Specification Highlights
Getting the torque right is critical. The manual documents torque values for K482 and K532 cylinder head bolts at 35 ft. lbs., while K662 units require 40 ft. lbs. Connecting rod bolt torque is strictly specified at 200 in. lbs. for the K482 and K532 models, jumping to 35 ft. lbs. for the K662. Oil system capacity varies drastically depending on your filter configuration and remote plumbing setup. You will need to verify your exact configuration against the engine-specific volume charts provided in the text.
Intake valve clearance ranges from 0.008–0.010 inches for the K482/K532 and 0.006–0.008 inches for the K662. Exhaust valve clearance for the K482/K532 sits at 0.017–0.020 inches. Running diagnostics? Crankcase vacuum for the K662 is specified at 16 inches of water column. Working on industrial powerplants carries inherent physical risks. Always review these technical benchmarks carefully, observe standard shop safety protocols, and ensure you have the proper tools before tearing down heavy engine components.
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