Pages 20–23 (4 pages)
Ignition System
From the Chalmers Light Six Model 26 Instruction Book
Battery ignition with a dash coil, a cowl switch with a polarity reversing switch, and the Unisparker, which is driven from the intake camshaft and has governor spark advance. The chapter explains how the current flows, how to oil the Unisparker, how to dress and adjust the contact points with shim washers, and how to time the Unisparker with No. 1 piston past top dead center. It also gives the 1-4-2-6-3-5 firing order and a spark plug gap of about .025 inch.
Read this section free, starting at page 20What this section covers
- Battery, coil and polarity switch
- Unisparker operation and care
- Contact point adjustment
- Setting the Unisparker (ignition timing)
- Spark plug gap
- Make
- Chalmers
- Vehicle
- Passenger Cars
- Type
- Owner's Manual
- Models
- Chalmers "Light Six" Model 26 (5-passenger touring car, coupelet)
- Pages
- 51
What’s inside
Book of instructions
- Title Pages, Contents and IntroductionThe cover, a frontispiece of the 5-passenger touring car, the title page with the coupelet, the contents and illustration lists, and the Chalmers introduction to owners.pp. 1–5
- Operation and How to Drivepp. 6–10
- Directions for Lubrication and Semi-Monthly InspectionA chassis plan view (Fig. 2) showing where to lubricate and with what, a lubrication schedule by mileage from every 100 miles to every 2,000 miles, and a checklist for inspecting compression, ignition, water system, gear shifting, brakes, steering, springs and bolts.pp. 11–13
- Principle of the Four-Cycle Motor and the Five SystemsThe four strokes of a T-head motor explained by comparison with a muzzle-loading rifle, and an outline of the car's five systems: gasoline, circulation, ignition, lubrication and transmission.pp. 14–15
- Gasoline Systempp. 16–19
- Ignition Systempp. 20–23
- Water Circulation SystemThermo-siphon cooling with no water pump: filling the radiator, the overflow pipe, fan belt tension set with the eccentric bracket, and flushing the radiator, cylinder jackets and carburetor water jacket.pp. 24–25
- Lubrication Systempp. 26–29
- Power Transmission Systempp. 30–34
- Electric Starting and Lighting Systemspp. 35–40
- Proper Care of Motorpp. 41–45
- Running Gear, Cold Weather, Troubles and IndexAccording to the contents list, these pages hold the running gear chapter with brake construction (Fig. 16), cold weather procedure, troubles, miscellaneous suggestions, how to wash the car, and the index. The scan has no text layer for most of these pages.pp. 46–51