Hey Guys,
I need to replace all the hoses on my EZ30 (I have a pretty constant leak from 1 of my top hoses) and want to know the correct procedure to correctly bleed the cooling system.
If anyone can assist it would be appreciated.
Daytona wrote:I'd actually be interested as well as to what others have done for coolant.
Last time I essentially followed the service manual, but I'm pretty sure it would ever only flush the coolant in the radiator and not the block.
The steps from the service manual is basically:
3. Engine Coolant
A: REPLACEMENT
1. DRAINING OF ENGINE COOLANT
1 ) Set the vehicle on a lift.
2 ) Lift up the vehicle.
3 ) Remove the under cover.
4 ) Remove the drain plug to drain engine coolantinto container.
NOTE:
Remove the radiator cap so that engine coolant will drain faster.
5 ) Install the drain plug.
2. FILLING OF ENGINE COOLANT
1 ) Pour cooling system conditioner through the filler neck.
2 ) Pour engine coolant into the radiator up to the filler neck position.
3 ) Fill engine coolant into the reservoir tank up to “FULL” level.
4 ) Close the radiator cap and start the engine.
Race 5 to 6 times at 3,000 rpm or less, then stop the engine. (Complete this operation within 40 seconds.)
5 ) Wait for one minute after the engine stops, open the radiator cap. If the engine coolant level drops, add engine coolant into radiator up to the filler neck position.
6 ) Perform the procedures 4) and 5) again.
7 ) Attach the radiator cap and reservoir tank cap properly.
8 ) Start the engine and operate the heater at max imum hot position and the blower speed setting to “LO”.
9 ) Run the engine at 2,000 rpm or less until radiator fan starts and stops.
10 ) Stop the engine and wait until the engine coolant temperature lowers to 30°C (86°F) or less.
11 ) Open the radiator cap. If the engine coolant level drops, add engine coolant into radiator up to the filler neck position and reservoir tank to the “FULL” level.
12 ) Attach the radiator cap and reservoir tank cap properly.
13 ) Set the heater setting to maximum hot position and the blower speed setting to “LO” and start the engine. Perform racing at 3,000 rpm or less. If the flowing sound is heard from heater core, repeat the procedures from step 9).
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