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Discussion Topic:
COLUMBIA REAR END
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chucksue |
05-19-2017 @ 5:46 AM
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Member
Posts: 11
Joined: Jun 2016
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I need help on my Columbia rear end. Doesn't shift all the time. When it does it doesn't want to stay in. What size tube should you use from the carb back to the rear canister? I rebuilt this when Dan Creable had parts in Temecula Ca. IT has the thin plate under the carb for the vac.The line there is 1/4 inch???
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kubes40 |
05-19-2017 @ 11:45 AM
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Senior
Posts: 3406
Joined: Oct 2009
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It would help to know the type of controls you are utilizing (year). The vacuum line is 3/8" inside diameter. That is ALL the lines, both rubber and copper plated steel.
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4dFordSC |
05-19-2017 @ 2:16 PM
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Member
Posts: 266
Joined: Oct 2009
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Try shooting some Marvel Mystery Oil into the shift cannister.
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wmsteed |
05-20-2017 @ 7:21 AM
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Senior
Posts: 613
Joined: Oct 2009
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The original vacuum lines were 3/8" steel running the length of the chassis, with short rubber hoses at the engine and rear end. I don't think the 1/4" lines will provide enough volume, I would also suspect the vacuum plate under the carb. My car picks up the vacuum from a port in the manifold below the carb.. ie; intended for the wipers.. Check the vacuum can on the Columbia, leathers might be dry or the can could be gunked up from age.
Bill 36 5 win delx cpe
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chucksue |
05-23-2017 @ 12:44 PM
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Member
Posts: 11
Joined: Jun 2016
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The controls are the vacc. manual mounted on the dash.
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chucksue |
05-23-2017 @ 12:46 PM
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Member
Posts: 11
Joined: Jun 2016
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You are probably right about the leathers. I heard there was someone down south that had replacement parts for Columbias. I will have to do some research.
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kubes40 |
05-23-2017 @ 2:39 PM
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Senior
Posts: 3406
Joined: Oct 2009
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Vacuum manual mounted on the dash? Huh? I've never seen the controls mounted on the dash. Could you post a photo? That would help a lot in determining what is most likely the issue. Otherwise it's just guessing...
Mike "Kube" Kubarth
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coup |
05-23-2017 @ 4:26 PM
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Member
Posts: 71
Joined: Sep 2011
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I'll guess with you. If it actually shifts, the over center spring will hold it there. It would need vacuum to shift it back. Bypass the control and see if it will stay.
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wmsteed |
05-24-2017 @ 8:49 AM
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Senior
Posts: 613
Joined: Oct 2009
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I think that I'll stay with my original statement that the 1/4" lines are two small, not enough volume and that the leathers in the vacuum can are dried out...
Bill 36 5 win delx cpe
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kubes40 |
05-24-2017 @ 9:27 AM
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Senior
Posts: 3406
Joined: Oct 2009
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I HAVE TO SAY, WITHOUT KNOWING MORE FROM THE ORIGINAL POSTER IN REGARD TO EXACTLY WHAT CONTROLS HE HAS, ETC. ALL A GUY CAN DO IS GUESS. IN MY OPINION, IF HE TRULY WANTS CONSTRUCTIVE HELP, HE NEEDS TO GET BACK TO US WITH MORE PRECISE INFORMATION. OTHERWISE, I SUPPOSE HE IS WILLING TO CHASE FROM ONE THING (GUESS) TO ANOTHER. ME? I PREFER TO DIAGNOSE PROBLEMS SYSTEMATICALLY.
Mike "Kube" Kubarth
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