13brv3 wrote:When you say the temps get that high, at what power level? How long does it take? Nearly every aircraft engine will overheat on the ground eventually, even at idle. If this is just within 5 min or so, there's a problem. If it's an hour, maybe not.
Rusty
Skippydiesel wrote:She hasn't even taxied (forward motion may help) and the coolant (head temps) gets up to 120C - the oil 110C.
peter anson wrote:Skippydiesel wrote:She hasn't even taxied (forward motion may help) and the coolant (head temps) gets up to 120C - the oil 110C.
My experience is that even taxiing helps cool the engine.
Murray Parr wrote:One thing you may not have thought of is bleeding all the air out of the coolant. If you have any high spots where air can be trapped, the coolant flow will be diminished and if it happens to be in the radiator the air space will also reduce cooling capacity of the radiator. In my application, this was such a big factor that I actually had 2 bleed ports welded into the radiator, 1 for bleeding air out of the top and the other just for convenience for draining coolant at the bottom (no mess when changing coolant).
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