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Posts Tagged ‘change’

Fan Blade Change

Thursday, February 11th, 2010

At the beginning years of the 216 engine (1937-1938) the fan blade that cooled the radiator was made with a center hub plus four blades. Each blade was attached to the hub with three rivets.

This combination worked well when new, however, it was certainly more expensive to produce. A dangerous part of the design was the blades attached by rivets. Rain water while driving and sometimes a leaking radiator allowed dampness to get between the blades where they overlapped the center hub. As rust continued, the chance of a blade coming loose increased. Even with deterioration, the four blades stayed in balance while the vehicle was moving. Then all #*!# broke loose when a blade went through the hood, radiator, or where-ever!

A new design fan was introduced in 1939 and used through all the remaining 216 years and early 235 year, 1954. This blade was used on Chevrolet cars and pickup trucks. It is simply two identical blades welded together that held tight against the water pump with four fasteners. Much less expensive to produce and so much safer!!!

fan blade

Close-Up of 1937-1938 Fan Blade with Rivets.

fan blade

1937-1938 Fan Blade with rivets.

fan blade

Close-Up of the new improved safer 1939-1954 Fan Blade

fan blade

1939-1954 Fan Blade

1936 Fender Change

Thursday, February 11th, 2010

It is quite surprising to realize that for 20 years auto and truck makers did not make a simple needed change to their vehicle front fenders.

Somehow major car and truck companies picked 1936 as the year it would be introduced. Did they all get together and make the decision, was it government encouragement, or ____?

The addition was side extensions or skirts. Prior to this pedestrians, side walks, pets, and building fronts received more than their share of mud and water from passing vehicles. With more and faster vehicles on the road, the problem must have been very annoying. The greater the speed when you hit mud or a puddle, the further the slop was thrown. No doubt many diaries had a page that described the results of this while walking to church in the Sunday best.

The modification in 1936 was not a cure-all but it did help the problem. The following pictures show the open sided fenders on a 1934-35 Chevrolet truck and the 1936 with the change.

1936 fender change 1

1935 and Older (above)

1936 fender change 2

1936 Fender Change (above)