Master
SupporterAgreed, I was simply using that A-Series as an example. But for the engine to lose significant amounts of coolant after it has been switched off, but not when running, the coolant pressure must increase when the engine stops. The only way for that to happen is for something in the system to have enough heat to boil or significantly heat the coolant when the flow stops. That is not part of the normal operation of an engine and so might be worth investigating.Originally Posted by Blknight.aus
Master
Hmmm! *strokes his chin thoughtfully*
Did the 186 Holden need an overflow tank? I lose half to one litre of coolant as it idles to warm up after topping up cold.
The rad is the orig 2.25 LR one with what looks to me like a very substantial "header" tank up top. From memory, Holden ones were quite puny.
AT REST
If you top up your radiator to the very top you will always lose coolant with every warm up. If you fill the rad only to the mark half way up the top tank you shouldn't need a recovery tank. If you insist in filling it right up you need a recovery type pressure cap and a recovery tank.
BTW what I see in your rad isn't coolant as I understand it, it looks more like what you would have dredged out of the Darling river bed before the flood. Flush and corrosion inhibitor needed, ASAP.
Master
Errrrmmm!
Mate you're looking at PURE BRASS! The radiator is fresh from workshop. The coolant is clear water at this stage.
And I've only filled it to the top twice. Once when I started it up and again to confirm what was happening.
Can I leave the Naughty Corner now?
AT REST
Aaah, I was looking at the rubber part of the cap, I assume it's from before the clean?
No worries, proceed to enjoy your toy!
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