Position the crankcase, with its bottom side up, on two blocks of wood. Check exhaust system and air-intake silencer for obstructions. Something you normally would never see. Using the long seal driver, drive the mechanical water pump seal from the crankcase. Inspect all threaded areas for damaged or stripped threads. Lay the belt on a flat surface or slide it into a cardboard sleeve to prevent warping or distortion during storage.
Welcome to Harbor Vintage Motor Co. Use cable ties or tape to route wires and cables away from hot or rotating parts. Genuine Parts When replacement of parts is necessary, use only genuine Arctic Cat parts. Very useful and also becoming quite collectible. If the seals need replacement, see the appropriate Repairing Water Pump in Section 3. I could see air in the fuel line so i replaxced the fuel pump and removed the carbs. Place the assembly on its flat side.
Remove the spark plug caps and the cable tie securing the temperature-gauge sender wire; then disconnect the sender wire. Remove the three cap screws securing the thermostat cap; then remove the cap, gasket, and thermostat. If you find an identical item on eBay for less, let me know and I will beat their price! Support the hood; then remove the hood cable from the exhaust manifold. Inspect the sealing surface for any indication of high spots. Account for the O-ring gasket. Install the starter pulley; then secure the starter pulley with three cap screws and lock washers. If applicable, account for the two sleeves.
Remove the cap screws, lock washers, and washers securing the stator. Be sure the rubber side of the washer is directed toward the impeller. Leave it in the engine compartment. Remove the two Allen-head cap screws securing the stator backing plate to the crankcase. Inspect the balancer gear very closely for any chipped teeth or signs of wear. Tighten the gas tank cap securely.
High Altitude Operation Operating a snowmobile at varying altitudes requires changes in performance components. Remove the cap screws; then lift the bottom of the crankcase free of the engine. Install the piston rings on each piston so the letter on the top inclined surface of each ring faces the dome of the piston. If any roughness is felt, remove the retainer and inspect its bearing by turning it several revolutions. Remove the manifold and discard gaskets. It is this level of detail, along with hundreds of photos and illustrations, that guide the reader through each service and repair procedure.
Check the bottom of the water pump housing for any signs of coolant leakage. Note the position of the different-sized nuts. Inspect the sealing surfaces for trueness by placing each on the surface plate covered with 400 grit wet-or-dry sandpaper. Payment must be received in 7 days from end of auction. Recommended Oil The recommended oil to use in the oil-injection system is Arctic Cat 50:1 Injection Oil.
Remove the cylinder head cowling. Inspect the bearing dowel pins for wear. Covers complete tear down and rebuild, pictures and part diagrams, torque specs, maintenance, troubleshooting, etc. Repeat procedure until the flywheel is free. Install the piston rings on each piston so the letter on the top inclined surface of each ring faces the dome of the piston. Once the coolant stops flowing, remove the hose and tighten the drain valve. This oil is specially formulated to be used either as an injection oil or as a pre-mix oil for carbureted model break-in and meets all of the lubrication requirements of the Arctic Cat snowmobile engine.
Apply oil to the crankshaft bearings; then install the dowel pins, C-ring, and crankshaft into the lower crankcase half. We are located in Jonesville, Vermont. Remove the cap screw securing the two ground wires to the magneto housing cover. Inspect all fuel hoses and oil hoses for deterioration or cracks; replace if necessary. Lift the engine with engine mounting brackets out of the engine compartment. Loosen the track adjusting bolts to reduce track tension. Remove the cap screw securing the impeller to the shaft.