Overhead air vent in cab roof - seals and functionality

74 Cosa · Posted: Tue Jan 31, 2012 8:55 pm Post subject:

Image may have been reduced in size. Click image to view fullscreen.

Does this help?

bcampagnolo · Posted: Tue Jan 31, 2012 11:30 pm Post subject:

Thanks for the reply.
What about that hole in the bottom by the light? Is that just a hole or should I hang the little tree air freshener from there?
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Paul
67 Walkthrough 13 Window

BarryL · Posted: Wed Feb 01, 2012 7:48 am Post subject:

Big Bill · Posted: Thu Nov 29, 2012 5:48 pm Post subject:

Iam about to do my overhead vent seals and found this thread. From the looks of 74 Cosas last above photo the side vent flaps move all the way to the side and cover the side grills?? Mine have about an inch or two of space when turned to the side positon, somebody has been in there before and I hope just put it back together wrong. Are the flaps supposed to make contact with the inside of the grill to stop the air flow? Thanks to all of you guys that posted the pictures and write ups, very helpful.

BarryL · Posted: Thu Nov 29, 2012 7:50 pm Post subject:

Yes they are supposed to slap up against the louvers to seal and direct the air rearward. Probably the rubber seal is falling down and apart causing that gap: common.

Big Bill · Posted: Thu Nov 29, 2012 9:31 pm Post subject:

Thanks BarryL Smile

EDragnDean · Posted: Fri Nov 30, 2012 5:20 pm Post subject:

The rubber is attached and oversized vs the flaps and creates the seal.
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grey60 · Posted: Fri Dec 06, 2013 10:57 am Post subject:

Meanwhile, in the same vicinity of the bus …

My plunger doesn't plunge. Note broken end opposite the c-clip.

Anyone have a pic or know measurements of the original piece or how to hack a DIY replacement?

Thanks
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1960 grey panel

BarryL · Posted: Fri Dec 06, 2013 7:10 pm Post subject:

Is it part A68? http://oacdp.org/5867part/413.png

coolerthanelvis · Posted: Sat Dec 07, 2013 2:16 am Post subject:

No, Barry, that looks like an A71.

http://oacdp.org/5867part/383.png
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'68 Westy

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BarryL · Posted: Sat Dec 07, 2013 9:17 am Post subject:

Oh, yeah, cha bro. So right.

I fell for the "12mm" part of it thinking that's how long it was. Sheesh. A71 doesn't tell you diddly about length.

grey60 · Posted: Sat Dec 07, 2013 7:10 pm Post subject:

A72, the spring, is 32 mm long and about 6 mm ID.

The remains of A71 that I have are 32 mm x 5 mm, round, black plastic …

I can reproduce something that works for me, but I need to see what an original piece looks like unbroken.
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1960 grey panel

BarryL · Posted: Sun Dec 08, 2013 8:53 am Post subject:

All I can give you. I think mine is steel.

grey60 · Posted: Mon Dec 09, 2013 10:11 am Post subject:

Stocknazi · Samba Member Joined: June 18, 2004 Posts: 5150

it's plastic
i have an extra somewhere if i can find it
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John TC · Posted: Wed Dec 11, 2013 2:30 pm Post subject:

not able to find the correct grommets, I cut short sections of rubber pipe as a substitute

flap setup

grey60 · Posted: Wed Jan 01, 2014 11:26 am Post subject:

DadaCheese

This thread is excellent and took some of the mystery out of the few words that the Bentley manual had to say on the subject.

I've started this project, and will post a variety of (hopefully) helpful pictures and words on the experience when I am done. That'll be awhile, but before Thanksgiving...

Inexperienced question:

To get some of the old directional flap cleaned up, and the old flap material off, I have steel-wooled and sanded down to bare metal in part.
Should I/do I need to spray paint these parts?
What about the ones that have rust (like the flap part); how "clean" should I be getting these?

Lastly; the right adjustment screw which holds the flap to the controller rod broke. Easy to find part at a hardware store? Suggestions?

Thanks!

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Eric&Barb · Posted: Tue Oct 07, 2014 7:37 am Post subject:

Definitely would remove rust and paint.

You could have your local powder coat shop sand blast the pieces, spray on a marine zinc primer and color coat in black or what ever suits your fancy.

Or do it yourself at home with phosphoric acid till clean of rust, rinse and dry, high content zinc primer and use a good quality spray paint.

Screw should be an easy hardware store or fastener supply shop. Next time, do not just go for broke like that. Instead try wiggling the screw tighten/loosen a tiny amount back and forth to get it to move. Before just trying to turn it all the way loose.
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The piano wire hinge on one of my flaps is busted. Anyone ever have any luck banging the old one out and new wire in? Any idea on the size?

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Overhead air vent in cab roof - seals and functionality
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