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Old 01-07-2020, 07:50 AM   #23
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Join Date: Aug 2005
Location: NJ Shore
Posts: 511
My Ride: E30M3 Track Car
Great question and two schools of thought:

Cold engine: Everything is contracted and removal can be more difficult, albeit aluminum is slightly tougher?

Warm engine: Everything is expanded and parts should come apart easier? Albeit aluminum is slightly softer.

We're splitting hairs, but if in my shop and confronted with what you have, I'd likely (?) try "warm".
Don Fields
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