Wisconsin Air-Cooled 4 Cylinder Engines Models VH4 and VH4D - Instruction Book and Parts List

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Wisconsin Air-Cooled 4 Cylinder Engines Models VH4 and VH4D Instruction Book and Parts List

114 Pages

Exploded views of each part. A large amount of valuable information. Also Includes Magneto Service Instructions.

This Manual is available in: Digital Download


Agricultural Engine Instructions

Air Cleaner and Pre-Cleaner

Battery Ignition -Wiring and Timing Diagram

Bore and Stroke

Carburetor Adjustment

Carburetor Repair - See Manufacturer's Builetin in Back of Manual



Clutch Adjustment

Clutch Reduction Unit


Compression - Restoring


Cross Section of Engine

Disassembly and Reassembly

  • Air Shrouding
  • Camshaft
  • Camshaft Gear
  • Carburetor and Manifold
  • Crankshaft
  • Cylinders
  • CylinderHead
  • Flywheel
  • Fuel Tank
  • Gear Cover
  • Idler Gear and Shaft
  • Oil Pan
  • Oil Pump
  • Piston Ring and Rod Clearance Chart
  • Piston Rings
  • Pistons and Connecting Rods

Distributor - Battery Ignition

Distributor and Generator Maintenance

Distributor Timing

Electric Starter and Generator

Firing Order


Fuel Pump

Fuel Strainer

General Information and Design

Governor Adjustment

Governor -Operation


Ignition Switch

Illustration of Engine and Power Unit


Lubrication System

Lubrication System - Illustration

Magneto Breaker Point Adjustment

Magneto Ignition Spark

Magneto Repair -See Manufacturer's Bulletin in Back of Manual

Magneto Timing Diagram

Magneto Timing

Neon Lamp Timing

Oil Filter

Oil - Grade of

Oil Pressure

Parts List Section

Reduction Gears


Safety Precautions

Safety Switch - High Temperature

Service Station Directory - See Back of Manual

Spark Plugs

Starting and Operating Instructions

Starting and Operation of New Engine - See Inside of Front Cover

Starting - Hand Crank

Stopping Engine-Vapor Lock and Dieseling

Storage of Engine for Winter

Testing Rebuilt Engine

Troubles - Causes and Remedies

  • Backfiring Through Carburetor
  • Ignition
  • Knocking
  • Missing
  • Overheating
  • Starting Difficulties
  • Stops
  • Surging or Galloping

Valves - Grinding and Tolerances

Valve Tappets

Warm-Up Period - Overspeeding

Manual Code: MM-274-B