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2.3.1 Radiator
Tank design: The GPW radiator’s top tank has three recessed reinforcement ribs, running front to back. There is a collar around the water outlet pipe where it joins the back of the tank. The radiator support rod bracket is soldered to a recessed area in the top of the tank and has two holes arranged lengthwise to the top of the tank to aid soldering.
Markings: Script “F” above “GPW” stamped on back left side of top tank
Core: An original GPW radiator core is easily recognizable by the cutoff corners on the front side of the fins.
Finish: The radiator is finished in the same flat Olive Drab enamel as the vehicle body.
Radiator Hoses: From start of production until aprox. Nov. ‘42 GPWs were produced with one-piece rubber radiator hoses. The upper hose is a spiral-wrapped type with a 1/2” red stripe. The lower is a molded elbow shaped hose marked in red or white paint. The “F” is the Firestone style.
After Nov. ‘42 both upper and lower hoses included a steel tube and used 4 short lengths of red-stripe hose and a total of 8 hose clamps. The steel tubes were painted gloss black or more commonly olive drab. An alternate late-type hose did not have the red stripe, but did include the Ford part number and Ford script in silver paint.*
Radiator hose clamps: The radiator hose clamps are screw-type clamps, zinc plated with zinc or cadmium plated hardware. Hose clamps with a dark finish, similar to S2 are also acceptable. Modern “Aviation-type” stainless steel hose clamps are not an acceptable replacement.
Hardware: GPW radiators are mounted with two 7/16-20 x 1 1/2 Fine thread S2 finished carriage bolts.
* 1. Info on silver marked hoses provided by Tony Sudds.
Updates to this info below this line
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