Re: 39 speedometer
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Forum Ambassador
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Save the neatsfoot oil for leather treatment and keep it away from anything else.
Posted on: 2014/8/17 21:14
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Re: 39 speedometer
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Forum Ambassador
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The grease will probably be hard as a rock -- at least my 47 was. Use light oil such as 3 in 1 that has a little body. Clock oil may be too watery. The odometer drive is both worm screws and a gear train so fairly robust. Light grease on the worms and light oil on the bearings. The shafts are both bushed in places and just supported by clips in places.
The input bushing where cable connects and which supports the magnet needs a good lube. That is a frequent place that seizes. There should also be an external oil hole exposed on one side of the housing where the cable screws on. That has a felt that should get a drop or two of oil. The cup end and the shaft to needle and it's front support are the places that need a delicate touch.
Posted on: 2014/8/17 21:40
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Howard
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Re: 39 speedometer
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Home away from home
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thanks for the advice guys - this will help on the next project in a long list!
Posted on: 2014/8/17 22:59
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Re: 39 speedometer
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Home away from home
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David, I back HH's recommendation 100%. I've done this to my own 39 and friends cars and each has been working well for many years.
While you are at it, you may wish to lube the cable also. The rotating cable can pulled out through the upper end to be cleaned, lubed and reinserted. By the way, the speedometer is relatively easy to remove. 4 nuts (3/8", I think); two on each side of the speedometer. Loosen two on one side (left or right) and remove the two on the other. You can then tilt the speedometer on the loose nuts and slide it out. When it comes time to put it back in, you reverse the process. PM
Posted on: 2014/8/19 20:03
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Re: 39 speedometer
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Forum Ambassador
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While you are at it, you may wish to lube the cable also. The rotating cable can pulled out through the upper end to be cleaned, lubed and reinserted.
Yes, a wise thing to do. Folks use all kinds of different lubricants on speedo cables from white lithium grease to gear oil, I've always used white Lubriplate. But whatever you use, do NOT lubricate the last 1 or 2 inches at the top as the grease or other lube can work its way into the speedometer which you don't want.
Posted on: 2014/8/19 22:26
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