39 truck cowl vent lever help needed 1 Attachment(s)
On my 39 truck the cowl vent was wired shut from the under side and the linkages partially removed and tied up out of the way. I am trying to get it to work again and I took it out cleaned up the parts and have it back in place but I cant figure out how the linkages connect. I might be missing a piece or have it upside down. I tried searching for pictures or diagrams but only found info for sedan cowl vent linkages. So can any one with a truck take a few pictures up under the dash for me. Thanks
The linkage I have looks like the one in this picture. |
Re: 39 truck cowl vent lever help needed 1 Attachment(s)
Doesn't look correct to me, maybe that's why it was disabled. Here is my '38 1/2T. I believe the '38 and '39 cabs are basically the same.
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Re: 39 truck cowl vent lever help needed 6 Attachment(s)
Here are some more pictures, from the disassembly of my '39 pickup. Hope they help.
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Re: 39 truck cowl vent lever help needed 2 Attachment(s)
Thanks for the pictures. I see the the differences between the 2 linkages. The one I have has only 1 bolt at the firewall and connects to the back side of the vent. Where yours has 2 bolts at the firewall and connects to the front side of the vent.
Pictures loaded sideways for some reason. In one picture the vent is fully open and the lever is in the open position and there is a large gap between the bolt hole and the slot. In the other picture the vent is closed and the lever is in the closed position. The holes are close to lining up but I have to force it to line up by moving the lever toward the open position more than 2/3 the way to open. When it is bolted the vent can only be opened 1/4 inch. The bar that comes down to join the slot is bolted to the front hole on the windshield regulator. That was the only hole I can find in that area. No holes anywhere close by. Thats why I asked for pictures to see if I had it set up correctly or if I am missing another piece. Thanks |
Re: 39 truck cowl vent lever help needed I wonder if someone replaced the 2-bolt bracket with the 1-bolt that you have to try to make yours work? How is the bracket attached to the firewall?
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The reason it was disconected and put up out of the way was a heater had been fitted in that spot with the top of the heater level with the bottom of the dashboard in the center of the firewall. |
Re: 39 truck cowl vent lever help needed Oh wow - was it a factory heater or an aftermarket? My dad and I deal in the original heaters and I've never seen an installation on a '39 pickup.
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Just for the record I dont have a sedan pickup I have a 1 ton express. The term pickup dose not apply to my truck. |
Re: 39 truck cowl vent lever help needed Take a look at my web site: https://www.scottdoudrick.com/body/ On page 67 it shows 2 cowl vent assemblies, both with 91C part numbers. I guess we know what the two look like now. I wonder why they did them differently. Also interesting that they are not 81C numbers - these were 1 year only assemblies. The parts specific to the express are on the last page in case you are interested.
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Re: 39 truck cowl vent lever help needed 1 Attachment(s)
Thanks for the link to the website. I will look at it when I can use a big screen and not this old phone.
Picture of the heater |
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Re: 39 truck cowl vent lever help needed Interesting - definitely not original, though.
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Re: 39 truck cowl vent lever help needed 39 commercial Hot water heater appears like the 40 with slight difference. I believe it is mounted just to the right of the vent linkage.
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Re: 39 truck cowl vent lever help needed At this point frustration has set in
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Re: 39 truck cowl vent lever help needed 1 Attachment(s)
I found this, hope it helps
Bruce |
Re: 39 truck cowl vent lever help needed I would think the final assembly should look like your photo #4 posting above with the spring toward the passenger side and note the dog leg in the operating handle.
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Thanks for all the replies. My project for this long weekend was to get the vent working and relocate the heater |
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