Putnam's Automobile Handbook: The Care and Management of the Modern Motor-Car

Chapter 43: Mechanical Looseness, Due to Improper Adjustment, or Wear:

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About This Book

A practical manual for early motor-vehicle owners provides step-by-step guidance on purchasing, equipping, operating, and maintaining a four-cylinder automobile. It explains engine principles, carburetor and ignition care, lubrication, cooling, battery, tires, brakes, gears, bearings, mufflers, and chassis troubles, and offers diagnostic methods for common faults. Seasonal advice covers winter heating and cooling, hot-weather management, tire expansion, and fire prevention, while practical chapters address driving technique, skidding, gear shifting, touring, and minimizing fuel and repair costs. Emphasis is on hands-on first-aid repairs and systematic troubleshooting so owners can identify and remedy most ordinary problems and avoid unnecessary garage dependence.

Mechanical Looseness, Due to Improper Adjustment, or Wear:

Loose connecting-rod bearing, crank-pin end.

Crank-pin bearing out of round.

Main bearings of crank shaft loose.

Bearings too tight.

Wrist pin loose in piston.

Wrist pin loose in upper end of connecting rod.

Wrist pin not in line with crank shaft, causing side slap.

Piston ring loose in slot or broken.

Cam follower guide won.

Cam loose on shaft.

Worn cams (Flat spot).

Fly-wheel loose on crank shaft (old models with keyed-on wheel).

Fly-wheel out of balance.

Worn or broken timing-gear teeth.

Cylinder loose at its base.

Timing gears loose on shaft.

Engine loose from frame.

Piston too small for cylinder, causing side slap.

Poor push-rod adjustment—gap too great.

Exhaust or inlet valve sticking in guide.

Spark plug touching valve.

Magneto coupling loose.

Fan-belt coupling striking pulley.

Fan blades striking something.

Worn cylinder, causing side slap.

Bent crank shaft.