The most common models of preheaters for VAZ engines are built into the cooling system in the "small circle" section. Powered by a 220 V electrical network, they warm up the car's coolant immediately before starting the engine, providing an easy start in any frost. During the operation of this type of heater, it is required to constantly monitor the liquid level in the expansion tank.
It is necessary
- - wrenches;
- - a screwdriver for tightening the clamps;
- - sealant or sealing tape;
- - knife;
- - coolant;
- - tank for collecting coolant
Instructions
Step 1
Take the rubber hose from the kit to the heater or the standard hose used in the VAZ engine cooling system and cut it into 2 sleeves. The first sleeve - inlet should be about 15 cm long, the second - outlet - about 45 cm long. Attach the heater mounting bracket to its body with pins, washers and nuts. Put the prepared sleeves on the corresponding pipes of the heater and tighten them with clamps.
Step 2
Unscrew the drain plug on the engine block, open the radiator cap and drain the coolant into a prepared container. Clean the drain hole, apply sealant to the threads of the nipple or wrap a sealing tape, and then screw the nipple in place of the drain plug.
Step 3
Fasten the heater mounting bracket and the heater itself with a bolt and a spring washer in the engine compartment in close proximity to the upper radiator hose. In this case, the body of the device must not touch the fuel hoses and the fine fuel filter. Experiment with fuel hoses and filter placement to achieve this. Put the heater inlet hose onto the fitting previously installed instead of the drain plug. Secure the connection with a clamp.
Step 4
Cut the upper radiator hose. At the same time, on the VAZ-2101-2107 and VAZ-2121 carburetor engines, the heater outlet must pass next to the distributor breaker. To ensure the correct positioning of the outlet hose, cut about 2 cm at the cut from the edge of the upper radiator hose. Put a clamp on the hose section and insert a tee into the hose so that its side fitting is directed away from the engine and towards the heater.
Step 5
Put the heater outlet hose onto the side fitting of the tee and secure with a clamp. Turn the tee so that the outlet sleeve is in the correct position relative to the distributor and tighten all clamps. Refill the engine cooling system with liquid through the filler neck of the radiator.
Step 6
Route the heater power cable inside the engine compartment and secure with cable ties. The route of laying the wire must ensure its safety from mechanical damage and exclude contact with moving and heating parts of the motor. If the design of the heater provides for the connection of the power cable through the connector, pay attention to the reliability of fixing the power cable near the connection. This is to prevent the wire from being disconnected while driving.
Step 7
After all work has been completed, check the hose and hose connections for leaks. If found, check the clamp tightness, seal with a sealant or sealing tape. Make sure not to forget to screw the radiator cap back on. Run the engine for 5 minutes and, after stopping it, add coolant to the required level.
Step 8
Plug the installed heater into a 220 V socket. After a few seconds, you should hear the noise of heating coolant. Also check the heating of the heater outlet arm.
