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cowl vent adjustment #1305552 Mon Apr 01 2019 02:30 PM
Joined: Nov 2008
Posts: 223
R
rc356s Offline OP
Shop Shark
Hi All
I have a 1950 1/2 ton and trying to adjust my cowl vent. The brackets welded on the cab that the cowl vent attaches to is a hinge correct? It suppose to rotate, mine seem to be seized but it a little hard to see how it works. Anyone have a video of it operating correctly?

thanks
skipper

Re: cowl vent adjustment [Re: rc356s] #1305650 Tue Apr 02 2019 02:35 AM
Joined: Sep 2006
Posts: 3,516
B
Brad Allen Offline
Shop Shark
Directions for adjusting your vent are in the following slide set. I would advise let go on the bolts, they are unique and snap easily if rusted.
https://www.flickr.com/photos/advance-design_parts_co/albums/72157641244124604

Re: cowl vent adjustment [Re: rc356s] #1306248 Sun Apr 07 2019 01:40 AM
Joined: Jun 2008
Posts: 1,214
S
Spotbiltxo Offline
Shop Shark
Awesome resources Brad. Thanks so much for sharing all of them with us!!!


Chuck
1950 Chevy 1/2 ton (original)
1951 Chevy 1/2 ton (future streetrod)
1941 Chevy coupe
1938 Chevy coupe streetrod
Re: cowl vent adjustment [Re: rc356s] #1306578 Wed Apr 10 2019 12:44 AM
Joined: Sep 2006
Posts: 3,516
B
Brad Allen Offline
Shop Shark
Certainly, many more to complete, I just need some time...

Re: cowl vent adjustment [Re: rc356s] #1310765 Wed May 15 2019 02:00 AM
Joined: Apr 2019
Posts: 121
J
JD1 Offline
Shop Shark
Can someone post a picture of an installed vent from under the dash?
I need to know how the top part of the vent connects to the support bracket.
It looks like I will need to fabricate one side of the support bracket since mine is missing.
Thanks,
Joe


1951 Chevy 3100 1/2 ton (1957 235, 4 speed, 411 rear)
Re: cowl vent adjustment [Re: rc356s] #1310871 Thu May 16 2019 12:47 AM
Joined: Apr 2019
Posts: 121
J
JD1 Offline
Shop Shark
Or is there a picture of the entire vent assembly in the assembly manual? Can someone post that picture if they have it?
Thank you.


1951 Chevy 3100 1/2 ton (1957 235, 4 speed, 411 rear)
Re: cowl vent adjustment [Re: rc356s] #1311064 Sat May 18 2019 02:29 PM
Joined: Jan 2002
Posts: 1,954
C
cmayna Offline
Shop Shark
JD1, The vent itself has a pivot arm that hangs down. It is connected to a similar looking arm which points upward that is connected to the lower vent support brace/handle assembly. My rig is so cluttered under the dash, it would be hard to see the bracket assembly via a pic. Maybe that's why it drives so well smile

Here, I googled and found a decent pic of the assembly. The vent's slotted arm connect's to the lower assembly's slotted arm.

Attached Files
cowlVentAssy.jpg (54.12 KB, 140 downloads)

Craig's '50 Chevy 3100 5 window
My truck
If I'm not working on my truck or VW camper, I'm fishing with the wife or smoking Salmon.
Re: cowl vent adjustment [Re: rc356s] #1311455 Wed May 22 2019 12:25 AM
Joined: Apr 2019
Posts: 121
J
JD1 Offline
Shop Shark
Thank you. I found that one too.

My vent has a L bracket on each side of the vent. Does this L bracket mount to another L dash bracket via a bolt and nut on each side?
The bracket underneath my dash is long gone and I think I need to fabricate something to get the vent to be functional.


1951 Chevy 3100 1/2 ton (1957 235, 4 speed, 411 rear)
Re: cowl vent adjustment [Re: rc356s] #1311461 Wed May 22 2019 01:13 AM
Joined: Sep 2013
Posts: 815
M
moparguy Offline
Shop Shark
JD1, I had to coach my vent back into working condition. Main problem was many years of non-use. I'm currently on the road but will post up a photo within the next 48 hours.


1951 3600 with Clark flatbed, T5, 4.10 rear
1970 340 Duster
1990 5.0 V8 Miata (1990 Mustang Gt Drivetrain)
1951 Farmall Super A



Re: cowl vent adjustment [Re: rc356s] #1311525 Wed May 22 2019 07:25 PM
Joined: Jan 2002
Posts: 1,954
C
cmayna Offline
Shop Shark
Here's a couple pics of my vent. The vent's arms connect to the pivoting arms which their base is welded to the cowl. Hopefully the pics help. Please note that the pivoting points are I believe riveted, yet one of mine has a bolt and nut. This is from the rivet breaking and so I simply drilled out the broken rivet and grabbed an extra bolt and nut.

Attached Files
IMG_0684.JPG (108.2 KB, 101 downloads)
IMG_0686.JPG (138.84 KB, 99 downloads)

Craig's '50 Chevy 3100 5 window
My truck
If I'm not working on my truck or VW camper, I'm fishing with the wife or smoking Salmon.
Re: cowl vent adjustment [Re: rc356s] #1311534 Wed May 22 2019 09:26 PM
Joined: Jan 2017
Posts: 292
4
49 3100 Offline
Shop Shark
I have two 3100 1/2 tons, both now have Steele rubber products seals, all others on the market appear to be too Hard .....FWIW--Bill

Re: cowl vent adjustment [Re: cmayna] #1311573 Thu May 23 2019 01:48 AM
Joined: Apr 2019
Posts: 121
J
JD1 Offline
Shop Shark
Originally Posted by cmayna
Here's a couple pics of my vent. The vent's arms connect to the pivoting arms which their base is welded to the cowl. Hopefully the pics help. Please note that the pivoting points are I believe riveted, yet one of mine has a bolt and nut. This is from the rivet breaking and so I simply drilled out the broken rivet and grabbed an extra bolt and nut.


Perfect, that is just what I needed. Now I have to fabricate a piece and rig something up to make it work. I'll have to drill out the rivet and make a L bracket for one side of the base.
Thanks!


Last edited by JD1; Thu May 23 2019 02:46 AM.

1951 Chevy 3100 1/2 ton (1957 235, 4 speed, 411 rear)
Re: cowl vent adjustment [Re: 49 3100] #1311577 Thu May 23 2019 01:59 AM
Joined: Apr 2019
Posts: 121
J
JD1 Offline
Shop Shark
Originally Posted by 49 3100
I have two 3100 1/2 tons, both now have Steele rubber products seals, all others on the market appear to be too Hard .....FWIW--Bill

Bill,
Gotcha, I ordered it. Thanks.
Did you mount the seal on the vent itself? I've seen people mount it on the cowl or the vent.


1951 Chevy 3100 1/2 ton (1957 235, 4 speed, 411 rear)
Re: cowl vent adjustment [Re: rc356s] #1311593 Thu May 23 2019 04:22 AM
Joined: Sep 2006
Posts: 3,516
B
Brad Allen Offline
Shop Shark
It mounts on a recess in the cowl, the edge of the vent seals to it.

Re: cowl vent adjustment [Re: rc356s] #1312525 Thu May 30 2019 08:13 PM
Joined: Apr 2019
Posts: 121
J
JD1 Offline
Shop Shark
Well. I fixed the cowl vent today. I had to fabricate a part, but it went together great.
I received the gasket from Steele Rubber and the adhesive. I'll take the vent out and mount the gasket next.

But I'm not sure how the gasket installs into the cowl recess. There is an inside and outside area of the cowl recess, but it doesn't really fit perfectly in either.
How is the gasket supposed to fit in that cowl recess?

Thanks,
Joe


1951 Chevy 3100 1/2 ton (1957 235, 4 speed, 411 rear)
Re: cowl vent adjustment [Re: rc356s] #1312695 Fri May 31 2019 08:34 PM
Joined: Apr 2019
Posts: 121
J
JD1 Offline
Shop Shark
I talked to Steele today. They stated the flat side of the gasket should go on the bottom. The gasket should sit in the outside channel snug against the chimney of the inside channel.


1951 Chevy 3100 1/2 ton (1957 235, 4 speed, 411 rear)
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