Re: Overheating Problem

Posted by Ron Ferguson On 2007/8/4 18:06:13

TEMP TEST RESULTS
Between Original standard 4 blade and 5 blade flex fan on 1940 Packard 120 8 Cylinder.
All readings were taken immediately upon returning home, with engine idling and garage door open to outside. Note - engine block, head, and radiator had been flushed. All readings were taken after flush.

ORIGINAL 4 BLADE FAN -
Air temp 78 degrees - water temp 178 degrees
Air temp 94 degrees - water temp 196 degrees

NEW 5 BLADE FLEX FAN -
Air temp 78 degrees - water temp 172 degrees
Air temp 93 degrees - water temp 176 degrees

While the air temp was 1 degree cooler, a water temp reading was a full 20 degrees lower
I had to bite my lip installing the un-original new fan, after the tests Im glad I did it. I used a standard kitchen meat thermometer and let it rest in the radiator for 2 minuets before recording the temp.
The increased amount of air blowing across the engine and being sucked thru the radiator is dramatic. I have no way to measure it but it must have doubled.
Im considering PROBLEM SOLVED
Now on to the next problem