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Full coolant flush
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Full coolant flush
Anyone know the best way to do this? Just bought the recommended red coolant and im sure the old stuff is green/blue, Hoping to sort the oil leak and swap the newer radiator in tomorrow. I know theres a drain bolt on back of the block but id rather try avoid using that.
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Coolant draining an h22 is jobby - what you get out is a very small percentage of what's in there total.
I've not actually found the drain plug myself yet.
Few options - drain, refill with water, run, drain, repeat until it looks clear, then refill with required concentration of coolant (not perfect).
Or drain, leave the drain open, flush through the rad from the top, then undo something like a heater hose, attach a hose pipe to that and flush it through until clear.
I've not actually found the drain plug myself yet.
Few options - drain, refill with water, run, drain, repeat until it looks clear, then refill with required concentration of coolant (not perfect).
Or drain, leave the drain open, flush through the rad from the top, then undo something like a heater hose, attach a hose pipe to that and flush it through until clear.
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When your old rad's out, leave its hoses connected to the system. Then why not put a garden hose through it via one of the connections. If the replacement rad isn't new, it'll be worth reverse flushing that, too.
As to the coolant. the red stuff came out long after your 4G was built and the blue/green is more than adequate. Take the red bottle back to the shop and swap it out. If you can't do this (already opened the bottle, perhaps), don't worry too much. Once you've run a hose through as suggested, I can't imagine that there'll be enough of the old coolant left to cause a damaging amount of sludge. Even if it's true that the two versions don't go well together, the relative proportions will be heavily in favour of the new coolant.
As to the coolant. the red stuff came out long after your 4G was built and the blue/green is more than adequate. Take the red bottle back to the shop and swap it out. If you can't do this (already opened the bottle, perhaps), don't worry too much. Once you've run a hose through as suggested, I can't imagine that there'll be enough of the old coolant left to cause a damaging amount of sludge. Even if it's true that the two versions don't go well together, the relative proportions will be heavily in favour of the new coolant.
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Re: Full coolant flush
So where do they put them these days?Sailor wrote:Ah, give me back the old days with a thermostat in a rad cap!wurlycorner wrote:Yep. That's the best way. I just can't ever be bothered drokking around with thermostats![]()
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Normally somewhere near a knuckle-skinner.Doggo wrote:So where do they put them these days?Sailor wrote:Ah, give me back the old days with a thermostat in a rad cap!wurlycorner wrote:Yep. That's the best way. I just can't ever be bothered drokking around with thermostats![]()
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