3 core Radiator on 22re coolant won't suck back in
#1
3 core Radiator on 22re coolant won't suck back in
On my 22re I have a 3 core radiator. Has anyone had the problem of coolant going to the reservoir when hot but not sucking back into the radiator when it cools? I checked and system holds pressure. Even has a sucking sound when opening the cap after a drive. Has new overflow hose. I think the culprit is the radiator cap. Which cap would have less spring pressure on the return valve? The stock radiator cap doesn't fit the neck. Please help. Thanks
#2
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What ever cap is rated for the pressure your cooling system calls for.
In theory any cap from 10.7 to 14.9 psi
Simple to test the cap if you have a cooling system pressure tester something I think is a must have.
Are you sure your using the correct hose from the over flow tank to the radiator I have seen some just collapse when the coolant is being pulled back towards the radiator.
Are you having over heating or lack of heat?? losing coolant?? Problems
If not I myself would not be overly concerned .
Back in my misguided youth no vehicles had over flow tanks.
In theory any cap from 10.7 to 14.9 psi
Simple to test the cap if you have a cooling system pressure tester something I think is a must have.
Are you sure your using the correct hose from the over flow tank to the radiator I have seen some just collapse when the coolant is being pulled back towards the radiator.
Are you having over heating or lack of heat?? losing coolant?? Problems
If not I myself would not be overly concerned .
Back in my misguided youth no vehicles had over flow tanks.
#3
Thanks for the reply. I tested the cap release point as well as testing with a vacuum pump the return valve. It worked effortlessly. But after a 200 mile drive and cool down, I have about a liter low in the radiator. I cleaned the reservoir thinking there was something blocking out flow. I also suctioned the filler neck side of the hose, draws easily. I pressure tested the system, was ok. Maybe the vacuum collapses the radiator hoses enough to raise the level 1 liter when cool. then when I loosen the cap the level drops as the hoses flex back. The main hoses aren't very old. Next time I drive it and the level falls I will squeeze the main hoses and see if the level rises. What is going on? Thanks
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