Columbia Guys ? When at a stop light with the car running, my idle speed increases when I depress the clutch. I have traced it to a vacuum leak within the Columbia shift tank. I assume the leather seals are shot. Who makes a good replacement? I have disassembled it already and put some red grease on them but I am still getting the rpm fluctuation.
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Re: Columbia Guys ? Columbia Two Speed Parts www.columbiatwospeedparts.com
Reproduction Repair Axle Parts and Controls for the Columbia Overdrive Two Speed Axle 1935 - 1948 |
Re: Columbia Guys ? John Connelly @ Columbia 2 speed Parts is a great source. I use Neat's Foot Oil (used to waterproof leather boots) to soften and lube the original leather discs in the shift can. Works well on 40 convert top cylinders too.
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Re: Columbia Guys ? Make sure your vacumn can is not pitted on the inside. Do not uae grease. Use needsfoot oil on the leather seals. You could also have a vacumn valve leake.
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Re: Columbia Guys ? Beside the diaphragm there is a shaft seal. Not only does the cylinder have to be pit free the shaft has to also.
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Re: Columbia Guys ? And I solved my leak problem by using hose clamps at each rubber hose end.
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