‘S0°- Wedtiesdsy, October 26, 1988'— North Shore News - AW, Preheater duct heats winter air WITH EACH litre of gas your car burns, it consumes many more litres of air. For ideal combustion, that air should be at a temperature of be- tween 21°C and 32°C. When it’s too cold, the car will run poorly, stall, get poor gas mileage and generaily be sluggish in performance. This common winter driving symptom is often caused by a damaged or missing heat riser tube, a flexible metal duct that directs heat from the hot exhaust manifold to the air cleaner intake. Also known as the preheater duct, it connects to a fresh air duct at the air cleaner housing. Here, a temperaiuie controlled valve mixes hot and cold air to keep intake at the right temperature. Sound complicated? It’s nothing more than a simple hot air furnace for the benefit of the carburetor or fuel injection. In a similar way, the fresh air duct to the carburetor is designed to provide cool air to the system in hot weather, when under-hood temperatures may exceed 90°C. If the air in the fuel/air mix is too hot, a lean mixture will result, caus- ing power loss, excessive emissions and/or severe engine damage. This fresh air intake tube also often is found damaged or missing, ac- cording to reports. Both of these ducts should be examined periodically and replaced when necessary. Know how to steer Retread tires HOW CAN economy-minded motcrists save impor- tant money on tire purchases without sacrificing safe- ty and comfort? The answer is retreads. © Retreads are extremely well suited for light trucks, 4x4s and recreational vehicles. They are used on school and municipal buses, police and emergency vehicles, racing cars, taxis, airplanes, trucks, and fed- eral and military vehicles. e Retreads make great snow tires. In fact, more retreaded snow tires are sold than new snow tires. @ Retreads are coitparable to new tires, and can be driven at the same speeds as comparable new tires. They are processed according to government safety save dollars standards. ® Retreads are available in high performance sizes in all tread designs, including all-season designs. ® With proper maintenance and care, retreads can give you the same mileage as new tires, and they look just like new tires. It’s a good idea to comparison shop for retreaded tires and to ask if a written warranty is available. The warranty may be for workmanship, mileage or some combination or the two. Once you have retreads installed on your car, be certain your wheels are properly aligned and check your tire pressure regularly to add miles to the life of your tires. ee ee indie | apply to most cars. 4 CYLINDERS 6 CYLINDERS F a lcediantiinn ientietiantiiantiantnintiantienDadetinatien taeda’ antic’ ati an Ee ti Mat inet Dh onto Ee nell deel MINET-TUNE AUTO CENTER Every Thursday for the months of November receive $13.00 off a tune-up. Prices 50, AST. ser, AQT. V6 & V8 CYLINDERS 6° 850 MARINE DR., NORTH VAN 986-0386 meee eee eee meme ee oe oe me me mete S MINITITUNE 00 October & 34. Plus Tax Bc nec ce ee ee wwe cre ce me me me eee eee ee eee meee eee ne ee power fails AS PART of their training, airline pilots are given a taste of what it’s like to land a plane without power — a good thing to know in ad- vance, This would be a profitable expe- rience for neophyte drivers, too. In this case it would be steering without power. A sudden loss of power stvering could be catastrophic if you’re not prepared for it, say safety experts. Like so many other things in your car, you may take your power steering for granted. But, if it should go out, you might have your hands full. To get the feel of it, find yourself a big area where you are completely out of danger of hitting someone or something. A shopping center parking lot usually works well. Then when the area is clear, do a little experimen- ting. . Starting at one end, accelerate to normal city driving speed, put your car in neutral and shut of the engine. You'll feel a sudden stiffening of the steering wheel. You can still steer but manoeuvring is difficult. Try to do big figure cights as you coast te a stop. If your car has power brakes, incidentally, you will begin to have trouble stopping after about three applications of the brake peda!. Then the pedal takes a Ict of additional foot pressure to stop the car. The brakes do have a little more reserve power, but there is no reserve power in power steering. While it’s good to know how the car would feel in case of power brake or steering failure, just as a pilot should know how to handle a dead-stick landing, it’s far better to know you’ve taken measures to prevent this from happening. Don’t let power steering fluid run low; keep an eye on your drive belts and hydraulic hoses to be sure they won't let you down. e 5 STORES IN GREATER VANCOUVER TO SERVE YOU BETTER AP: BRAKE. & CL The. old.