Overheating problem! Help!

[pumper1]

I installed a Champion radiator with electric fan on the front of the radiator and still run my mechanical fan. The reason I went with the electric fan is because the in traffic it would get as 220-225 on a 90-degree day. Problem solved. It now runs 190 degrees all day long. I also installed years ago a high flow water pump.

 

[snakeoil24]

A shroud is most important with fan blades 65 percent with in shroud and blade diameter within 1/4 inch of diameter of shroud.

 

[Geoff 2]

Are you saying the tip of the blades should be 1/4" away from the shroud? If so, that would not allow for engine movement, sagging of engine mount rubbers or left side of engine lifting under load.

 

[snakeoil24]

Are you saying the tip of the blades should be 1/4" away from the shroud? If so, that would not allow for engine movement, sagging of engine mount rubbers or left side of engine lifting under load.

Yes 1/4 inch between inner shroud and blade edge

 

[RemCharger]

One dump of the clutch BOOM , there goes your shroud.

 

[Geoff 2]

Exactly right.....

 

[snakeoil24]

Also 2/3 of the blades in the shroud andif big block pump impeller within 60 thousands from back interior of cavity according to chrysler engineering manual