high engine temp
Thread Starter
Instructor
Joined: Jul 2007
Posts: 193
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high engine temp
Started my rebuilt 406 for my 72 c3 on an engine stand to check for leaks and the electric fan didn't turn on and the temp got up to 230 degrees for a minute or so before I shut it down. Will this hurt it? It has dart Iron eagle heads but am now worried about cracks in the block or warping of the heads.
Thanks all
Thanks all
Race Director
Joined: Apr 2009
Posts: 19,294
Likes: 2,753
From: Charlotte NC
I would not worry about the temp due to the aluminum headed 86+ corvette have the cooling fans come on at 226-228 degrees.
You more than like have an air pocket in the block. There are tricks to filling teh block to reduce the chance of a large air pocket.
Make it so you can control the fans yourself.
DUB
You more than like have an air pocket in the block. There are tricks to filling teh block to reduce the chance of a large air pocket.
Make it so you can control the fans yourself.
DUB
Terrorizing Orange Cones
Joined: Oct 2007
Posts: 2,572
Likes: 17
From: Northern CO
Guessing that the engine didn't have enough time to hurt itself by shutting it down that quick.
I'm assuming that you are running a known functional mech water pump and both sides of engine are filled to the intake (and beyond) with coolant? Rad hoses are not collapsed or otherwise, blocked?
As long as it's flowing coolant properly (no air pockets), another check is whether the thermostat opens at its rated temp. A blocked t-stat can also cause overheating issues in little time.
Let us know what you discover and good luck.
I'm assuming that you are running a known functional mech water pump and both sides of engine are filled to the intake (and beyond) with coolant? Rad hoses are not collapsed or otherwise, blocked?
As long as it's flowing coolant properly (no air pockets), another check is whether the thermostat opens at its rated temp. A blocked t-stat can also cause overheating issues in little time.
Let us know what you discover and good luck.
