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Discussion Topic:
1940 Cvt. top vacuum lines
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TomO |
09-07-2018 @ 6:57 AM
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Senior
Posts: 7250
Joined: Oct 2009
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Steve, try Amazon. They have 25' coils of copper-nickle tubing. It is rust resistant and easy to form.
Tom
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kubes40 |
09-06-2018 @ 3:12 PM
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Senior
Posts: 3394
Joined: Oct 2009
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Steve, Go to a real parts store. Napa comes to mind. Tell them you want 5/16" brake line. the longest they will have is 60" (5'). You can couple the lines as necessary with a union which they will also have. I have attached yet another photo that may help you route your lines. Oh, if you don't have easy access to a Napa store, I like McMaster-Carr (on line). they are quite reasonable, reasonable and very fast shipping and have about everything in God's creation.
Mike "Kube" Kubarth
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sarahcecelia |
09-06-2018 @ 12:11 PM
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"Kubes I found 3/8"O.D. copper,and it's the smallest I can find, and that is in all probability about 5/16 I.D. 3/8"O.D. is a little bit big to conceal across the floor and on the tunnel I went to O'Reilly auto supply, they only have short lengths of steel brake lines. Got any other options for me?? the (2) lines from the kick panel to the rear area and (4) lines under the rear seat will have total about 20'. I think I need the tubing used for things like refrigerator water lines- that's pretty small copper tubing. What do you think ?? Any recommendations? ANYBODY???
Regards, Steve Lee
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sarahcecelia |
09-05-2018 @ 5:07 PM
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Posts: 1182
Joined: Mar 2013
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Copper tubing would probably work too.
Regards, Steve Lee
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sarahcecelia |
09-05-2018 @ 10:20 AM
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Posts: 1182
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"Kubes, "Thanks! Got the tubing all hooked up from manifold to tee to the w/wipers and to the top switch vacuum port. I noticed when I was pushing that tubing on the top switch, that it moved a little at that seam in the middle, to the right (front view), left (rear view), which would be "unscrew."I moved it back toward tighten. Will it leak now? Should I take it apart and permatex it somewhere? Regards, Steve Lee
This message was edited by sarahcecelia on 9-5-18 @ 10:21 AM
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kubes40 |
09-05-2018 @ 8:06 AM
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Posts: 3394
Joined: Oct 2009
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Steve, Brake line will work well. Ask the guy for 5/16" line. All lines, rubber & steel, are I.D. specified. No one has ever reproduced these lines. The photos I'd posted previously on this site depict NOS lines I was fortunate enough to have purchased at Hershey a zillion years ago. That's right - a zillion Those pictures should be of some help in bending your lines correctly.
Mike "Kube" Kubarth
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sarahcecelia |
09-05-2018 @ 6:28 AM
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Posts: 1182
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"Kubes," Thank you so much for you precise answers; they are just what I needed! Is it safe to assume that the answers you just gave pertaining to sizes are O.D.'s? I realize now, from your answer that the system requires a "tee" at the vacuum line near the wiper motor, but mine had a "Y," which is apparently not to specs, and has the wrong size outlets. I bought the car about 3 years ago, and never put the top down. The guy I got it from said the mechanism didn't work, and he just put it down "by hand." there are no no metal lines to the rear, or the tees needed there. I found this all out when I finally decided recently that I would like to make it mechanicly operative. Can I buy the metal lines or fashion them from brakelines? What do you suggest? Again, Thank you for all of your help!!
Regards, Steve Lee
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kubes40 |
09-04-2018 @ 11:25 AM
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Posts: 3394
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That "T" is not a "Y" but an actual "T". It has three ports. One, 5/16" in diameter, is gathering the vacuum from the engine. The other 5/16" nipple supplies that vacuum to the switch. The 1/4" nipple feeds the wiper motor. By the way, the tube threaded in the manifold is special for the convertible and is 5/16" diameter. All hoses to and from the top switch are 5/16' diameter. I use fuel line hose as it is reinforced and will not collapse as you fear.
Mike "Kube" Kubarth
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sarahcecelia |
09-04-2018 @ 8:02 AM
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Posts: 1182
Joined: Mar 2013
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The "Y" tee by the wiper motor has 3 ports, all for 1/4"I.D. tubing; which it has for the manifold hose and wiper hose, and it had a short piece with a bolt in it to block off the hose, (which is to short), to the "lone" vacuum port on the operating switch. Problem: All the ports on the operating switch (3), are 5/16" I.D. with a lip on them. What size hose will fit all, or is there a tee I can buy with (2) ports that are for 1/4" I.D. tubing, and (1 ) for 5/16 I.D. tubing?? I know I could buy 1/4"I.D. tubing that is of a thinner wall that would fit on the "lone" port, but it may collapse under vacuum. Also, what size I.D. hoses do I use to go from the "up" / "down"ports, that are 5/16 I.D. on the operating switch, to the metal lines that go to the rear vacuum cylinders? What a "Bag of Worms" this has become!!! "Kubes" are you there??? Regards, Steve Lee
This message was edited by sarahcecelia on 9-5-18 @ 6:01 AM
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sarahcecelia |
09-04-2018 @ 5:42 AM
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Posts: 1182
Joined: Mar 2013
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Sorry "Kubes"!! I missed this thread, and before I saw it wrote another one asking for more info. Duh! This is "Just what the doctor ordered." Thank you so much!! I'll look and see if I can delete the one I just posted, and if I can't all can disregard it!!
Regards, Steve Lee
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