Figure 26 CUT SECTION OF ENGINE

Normally rust, stadge other force material can readily be removed from can system by using a cooling system cleaning solvent however in server cases. Pressure hashing may be required various types hashing equipment are available a plastic or reversed how hashing will loosen sedim normal direction of coolant how it pressure hashing is to be used always remove the thermostat make sure cylinder head are tightened properly.

Before hashing after the cooling system has seen cleaned filled a good commercial rust inhibiter should be added however the rust inhibiter is not necessary it the cooling system is to be condite with permanent anti-freeze contining rust inhibiter.

DRAINING AND FILLING OF COOLING SYSTEM.

To drain the cooling system, open the drain lock on the right hand side of the engine block the radiator outlet on the lower left hand side of the radiator, Open the radiator pressure cap to speed dragging. To kill the system close the drain cocks fill the system with coolant + add rust inhibitor or anti-freeze according to the season + l ocality all perments anti-freeze said by repeat manufacture contains an anti-rust additive.