1942 - 1947 Chevrolet Shop Manual



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	tirely. To provide this clearance, when such an adjustment becomes necessary, loosen the hose clamps connecting the filler neck to the tank proper, and pull the filler neck out through the grommet the required distance. 1/2-TON TRUCK (Except Cab Type) The fuel tank of the 1/2-ton panel and chassis type truck is located on the right side of the chassis, just inside the frame side rail and between the second and third cross members. A strong mounting of two straps supports it underneath the floor, the front strap being attached to the steel floor at the front of the body and the rear one to a flanged channel which is used to reinforce the floor boards at this point, at the same time making possible a durable support for the rear strap. The steel floor at the front strap has a large stiffening rib stamped crosswise in it, thus providing a support for the front of the tank similar to the cross brace at the rear. Metal-to-metal contact is prevented by anti-squeak material. The tank is also set far enough from the side rail to prevent any rubbing. A covered opening is provided in the floor for access to the tank gauge unit. This tank is of heavy, leak-proof construction and has a capacity of sixteen gallons. It consists of two similar pans, welded together and reinforced with stiffening ribs around the sides. The filler neck extends through the body panel and is designed to permit rapid filling of the tank. A special vent tube extends the entire length of the filler neck into the top of the tank. A large baffle near the neck prevents surging. This fuel tank and its mounting is shown in Fig. 2.	to the frame side rail by two brackets and two straps. The brackets are bolted to the frame side rail and the straps, which go around the tank, are in turn fastened to the brackets. The tank construction is also similar to the 1/2-ton truck except for the increased capacity of 18 gallons. ALL 1/2, 3/4 AND 1-1/2-TON CAB TYPE TRUCKS An eighteen-gallon fuel tank is used on all cab trucks and the 1-1/2-ton single unit body trucks. The tank is mounted directly on top of the frame under the driver's seat. A riser formed across the top half of one end of the tank prevents air from being trapped by fuel entering the tank from the filler neck. On all cab type trucks the filler neck emerges from the end of the riser while on the 1-1/2-ton single unit body trucks, the filler neck projects from the side of the riser. In both cases, the filler neck extends outside the body. Where it goes through the body panel, a moulded rubber grommet seals the clearance hole and prevents spilled gasoline from entering the cab or body. With the filler neck attached to the riser, which is the highest point of the fuel tank, rapid filling of the fuel tank is possible without the possibility of fuel being blown out again by trapped air. The same ventilated type filler cap as used on the passenger cars is used on all trucks. GASOLINE TANK CAPACITIES
		Passenger Cars and Sedan Delivery 16 Gallons 54-Ton Truck (Except Cab Types) . . 16 Gallons 54-Ton Cab Type Trucks, All 3/4 and l-1/2-Ton Trucks............ 18 Gallons

		EXHAUST SYSTEM PASSENGER CARS The muffler, shown in Fig. 3, is a five-tube, reverse flow assembly for silencing plus a tuned resonance chamber. The assembly is oval in shape,

	Fig. 2- 1/2-Ton Track Fuel Tank (Except Cab Type}
	ALL 3/4-TON TRUCKS (EXCEPT CAB TYPE) The 18-gallon fuel tank used on the 3/4-ton truck is located in the same relative position to the frame as on the 1/2 truck. The mounting is similar to the 1/2-ton truck except that instead of being attached to the load platform the tank is anchored
		Fig. 3—Passenger Car Muffler