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35gene

Help '35 Chevy Speedometer Cable

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Help needed with speedometer cable. Replaced cable from transmission thru firewall to the speedometer. Fittings are tight, but oil still drips on brake pedal. Any help will be appreciated.

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Pull the cable out of the casing and dry it off. Only the bottom third of the cable should be oiled. Any more than that and it works itself up the cable and if you are luck it only leaks out. Usually it gets into the head and messes it up.

One of the biggest errors people make is lubricating speedo cables. I have had three cables on my car in 487,000 miles. I have never lubricated one of them and the first two broke because of -50 degree weather in Manitoba. When I worked in a GM dealership in the late 50's and 60's we used to send out dozens of speedo heads to be overhauled and most of the problems were caused by oil getting into the head from the cable. The instructions in the GM shop manuals say to only lube the bottom third.

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