Re: Howard's 47 Custom project
Posted by HH56 On 2016/2/7 11:27:22
Various photos of AC work in progress. There are other and different photos in the blog to confuse the issue but these are showing what I hope will be the final version.
Was constrained by the width of trunk shelf and prewar enclosure. Found that the Hurricane trunk unit from Old Air Products. was one of the narrowest modern units available. Picked that and reworked and reoriented in various ways as shown early in the blog and then the final photo so the components would be in a straight line. Settled on this layout and made a custom plenum and diverter assy to accommodate both front vent and the stock package shelf.
For some reason Packard mounted the Clipper compressor on the left side of engine and conventional bodies used the right side. Have not seen a real setup to know how they did it so made a custom bracket to place the Sanden compressor in the approximate location. I had bought the fan compressor drive pulley when they were reprod many years ago. Finding that large belt and modern wide groove pulley for the Sanden was the biggest issue there. Lowered the oil filter and made a custom vent tube which was used on the 356 engine so both would fit under the bracket.
The return air was a challenge. I do not know for certain how Packard did it and did not want to cut or modify any structure in the car. The intake on the modern unit also dictated where it had to be. Had originally made a full length plenum to fit behind the rear seat back to take in air from both the package shelf area and from under the seat. That moved the seat back forward an inch. Finally decided I did not need the top intake so made a small unit to mostly fit between the X braces. That lets the seat back stay in position at the top with only a small kick out at the bottom. In combination with raising the seat bottom as Packard did I also decided on some unobtrusive front grills in the seat bottom.
One of the custom additions was front vents. The duct size to the front was constrained by space available under the headliner. Used two 1" flex ducts on each side feeding the front vent plenum. Not ideal but with the two adjustable round vents inserted it does provide a tolerable air flow. The vent on the package shelf was made from scratch to duplicate the look of the stock 41-2 unit.
The final part was using aluminum AC tubing to more or less duplicate the Packard route and location of components. The custom dash knobs for the new controls are shown earlier.
Attach file:
(35.51 KB)
(57.00 KB)
(61.02 KB)
(56.63 KB)
(79.20 KB)
(70.00 KB)
Was constrained by the width of trunk shelf and prewar enclosure. Found that the Hurricane trunk unit from Old Air Products. was one of the narrowest modern units available. Picked that and reworked and reoriented in various ways as shown early in the blog and then the final photo so the components would be in a straight line. Settled on this layout and made a custom plenum and diverter assy to accommodate both front vent and the stock package shelf.
For some reason Packard mounted the Clipper compressor on the left side of engine and conventional bodies used the right side. Have not seen a real setup to know how they did it so made a custom bracket to place the Sanden compressor in the approximate location. I had bought the fan compressor drive pulley when they were reprod many years ago. Finding that large belt and modern wide groove pulley for the Sanden was the biggest issue there. Lowered the oil filter and made a custom vent tube which was used on the 356 engine so both would fit under the bracket.
The return air was a challenge. I do not know for certain how Packard did it and did not want to cut or modify any structure in the car. The intake on the modern unit also dictated where it had to be. Had originally made a full length plenum to fit behind the rear seat back to take in air from both the package shelf area and from under the seat. That moved the seat back forward an inch. Finally decided I did not need the top intake so made a small unit to mostly fit between the X braces. That lets the seat back stay in position at the top with only a small kick out at the bottom. In combination with raising the seat bottom as Packard did I also decided on some unobtrusive front grills in the seat bottom.
One of the custom additions was front vents. The duct size to the front was constrained by space available under the headliner. Used two 1" flex ducts on each side feeding the front vent plenum. Not ideal but with the two adjustable round vents inserted it does provide a tolerable air flow. The vent on the package shelf was made from scratch to duplicate the look of the stock 41-2 unit.
The final part was using aluminum AC tubing to more or less duplicate the Packard route and location of components. The custom dash knobs for the new controls are shown earlier.
Attach file:
(35.51 KB)
(57.00 KB)
(61.02 KB)
(56.63 KB)
(79.20 KB)
(70.00 KB)
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