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Angle gear drive

Cables and Controls

Vehicle Information: Model: 911T; Year: 1970; Body Type: Coupe; Engine (type, size, modifications): 2.0; Total Mileage: Not sure;

The last question I posted inquired about tightening the angle gear drive for the speedometer cable and the odometer. I thought I would add some information for you to consider.1. The odometer didn't work. The drive gear on the shaft that turns the odometer comes loose. I took out the speedometer, removed cover and took off the back. Then I moved the odometer shaft out far enought to get a needle nose vice grip in to squeeze the end of the gear on the shaft so that it was not perfectly round and now it works fine.2. Tightening the angle gear drive. You suggested using a hammer and chisel. I took an old 1-inch open end wrench and used bench grinder to make it the inside wider-needs to be about 23mm. Then I ground down the outside of open end down to as small as possible, very thin. Then I cut wrench in half making useable part about 3 inches long. Then after removing cross member the "new" open end wrench will get in the small area and tighten the speedometer driver gear. The new wrench is thin, delicate and short but works quite well.I thought you might want to add that to your suggestion for fixes. My 1970 911T is a beautiful Guards Red 930 conversion with the original engine. Beautiful car.Thank you for all of your suggestions. I have had Porsches for 20+ years and enjoy working on them. I will have additional questions as time goes on.Ron

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