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Vp Commodore

Glenn Parker

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Afternoon all, just after some advice on a coolant flush and change in my Vp Commodore. Radiator easy to flush and heater coil, is there a drain plug on the block to remove all of the water before refilling the system.
 

Trevor loves holden.

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All I do is remove the bottom hose drain it, remove top hose and flush it out putting the hose in the bottom first till it runs out the top then go from the top and flush it out the bottom. Then I remove the heater hose that goes thru the belt tensioner to thermostat and poke the hose in the bottom radiator hose till it runs out clear, put all hoses back on bar the top radiator hose, add coolant and start the car with heater on fall, once the thermostat opens you will see the clear or weak coolant coming out of top hose wait till it goes nice and dark then you know all the water that was in the block is now gone, put the top hose back on and bleed the air out, PS if you haven't changed your thermostat or heater tap its a good time to replace them saves doing them latter.
 

Deuce

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There is a small drain plug on each side of the V8 block low down and near the engine mount. Maybe 7/16 head from memory - you will see it when you are there.
It's about an inch lower than the welch plugs
 

Glenn Parker

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Sorry Guy's, best place to get the heater tap.
 
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