Let engine sit without coolant?

[Jonas Nordstrom]

Im going to drain out the coolant from the radiator and engine to change freeze plugs, hoses etc.
As Im still putting in new wiring in the car the engine wont turn for a couple of months.

What are the risks of having the engine/radiator sit without coolant in?

 

[Relax360]

It will rust over time without coolant in the block

 

[Nate S]

No risk.

 

[493 Mike]

It is recommended to store radiators (long term) full of coolant to stop corrosion.
Mike

 

[Fran Blacker]

If a radiator isn't being used for a long time what other way to stop corrosion? Flush with baking soda?

 

[69L48Z27]

I don’t see any issue. The one R/T I have had no coolant in the radiator for a couple decades. It’s the only radiator (Indoor storage) in my old car fleet that did not need re-cored.

 

[tonysrt]

I could see block forming rust due to the cast iron, not so much rad being either brass or aluminum.

 

[Jonas Nordstrom]

I removed the rad and flushed it directly with water. (Original rad, brass right?)

And then when everything is back together I plan to flush the engine with some rust remove. There was a thread about that here on the forum.

Then I guess I should be ok.