how to keep windshield open

R

randy c

Junior Member
I have a1928 open cab pickup ,how do you keep windshield out for vent when driving. does it arms to hold it out?

Allen C
 
Hello , I have a 31 roadster, and made up some wood dowels fitted between cowl rail and lower windshield frame, the wingnuts seem to loosen up with wind .
 
On open cars, remove the two stanchion wingnuts at the top of the windshield (only do one side at a time) and add 2 flat washers on there, then put the wingnuts back on snug when you have the windshield open to the position where you want it. Add the 2 washers to both sides. The windshield will stay there.

The stud bottoms out inside the wingnut before it is clamped tight to the stanchion.

I have seen people put wooden blocks, tennis balls, pool noodles, all kinds of stuff in the bottom of the windshield because they did not know about the washers.
 
Hi. I have the same problem with the same type/year vehicle. I see the answer below with adding washers. I’m near San Antonio and you’re right, it’s too hot to drive around with the windshield closed, even with the soft top off… ��
 
I bought the new fangled arms with notches in them, they hold the windshield open positively at any speed at any angle ! BTW the first notch or 1 1/2 inches open gives me the most air blowing down to my feet/legs .
 
Big hammer said:
I bought the new fangled arms with notches in them, they hold the windshield open positively at any speed at any angle ! BTW the first notch or 1 1/2 inches open gives me the most air blowing down to my feet/legs .
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Yea, that's probably a closed car, not an open car. The open cars only lock in at the top.
 
Jim/GA said:
On open cars, remove the two stanchion wingnuts at the top of the windshield (only do one side at a time) and add 2 flat washers on there, then put the wingnuts back on snug when you have the windshield open to the position where you want it. Add the 2 washers to both sides. The windshield will stay there.

The stud bottoms out inside the wingnut before it is clamped tight to the stanchion.

I have seen people put wooden blocks, tennis balls, pool noodles, all kinds of stuff in the bottom of the windshield because they did not know about the washers.
Click to expand...

Thank you Jim C. for the tip to use washers behind the wing nuts. I wasn't having much luck keeping my Roadster windshield set where I wanted it. Your trick worked!
 
I tried the metal washers, and a combination of rubber washers and metal washers. It kept slipping so I progressively tightened down the wing nuts until one snapped off one wing. I replaced both with modern wing nuts and tightened them down more. The windshield worked its way closed anyway.
 
SteveSTS- I appreciate the joke but just driving on regular roads at 20-30 mph the bumps are enough to close it up. I’m guessing the hardware is worn smooth. Maybe I’ll try roughing it up a bit. In the meantime, I fold over a small terry shop towel about four times and wedge it in on either side.
 
One consideration. There is "cone" that attaches to the windshield frame, and the post has a socket. The cone and post socket should have EXACTLY the same angle (the cone should be contacting the socket EVENLY and COMPLETELY. This makes a friction lock when modestly tightened (think Morse taper chuck and spindle on a drill press). Many reproduction parts (and restorations) have lost this critical detail.


If the studs are too long and bottom out in the wingnut, why not just trim them to a "correct" length? I do like to use a small washer between the nut and post to keep from galling the post. There are extra small od 3/8" washers made that have about the od of the wingnuts so look fairly unobtrusive.
 
Along the same line as Karl stated above, the late expert Marco Tahtaras had this to add to a similar thread way back in 2010:

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coming back to this...


I had the same problem, the windshield on my sl/ws would not stay wide open although both nuts were fastened really tight. As we have some hot weather right now, i had to find a solution.


What i did come up with is a 3d printed little gadget, that goes over the end of the tab n the wide open position on both sides. This prevents the windshield from closing. If the gadget is not in use, it can stay on the nut. The attached photo does not show the latest version, i made it look more elegant with some finer printing...


If anybody is interested in the stl-file, please contact me.


5effbe41-f2eb-4eef-8be7-3f58e5243e03
 

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