451 overheating, even when moving

Sooooooo, turns out I have the commie flu, which means isolating from the family, darn it all, I had to spend my first day of isolation watching baseball and then I decided to go ahead and put the efan in push configuration and reinstall the mechanical fan, which means I will be spending some of my iso time getting more data tomorrow.
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The fan is about 2.74" from the rad, I know it would cool better with a shroud, let alone look better with some proper efan zips instead of that Amazon junk...

Not like I can take it to the mechanic's this week.

Got to get a spacer on that fan to get it to within 3/4" of the radiator. Then it will pull air through the radiator and cool it down without the shroud.

Yes you have to pull the radiator to get the Fan and Spacer in there first, then re-install the radiator.

Knew there was something wrong with your installation when you said it would not cool with the mechanical fan.

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