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380SL diesel
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Discussion Starter #1 (Edited)
Although I'm running a diesel in my '85 380SL, I'm using the stock speedometer pickup, rear end, cluster, etc from the 380SL. Because the transmission is different, I was unable to source a tailcone with the internal 4-tooth trigger wheel that would let me use the pickup directly. So I've created a "trigger wheel" on the driveshaft rather than internal in the transmission and fabricated a bracket that holds the stock VR sensor.

When I got the car running I was thrilled to see an almost perfect correlation between the speedometer and a GPS reference.

Naturally I assumed that since the speedometer was spot on, that the odometer would be as well. After awhile I decided to check the odometer and found that it was reading a full 10% high. I'm running new, stock 205 70R 14 tires and the stock rear end.

Am I wrong in assuming that the speedometer and odometer should be in sync, and given that they are not, is there an adjustment/calibration that can be done reasonably?
 

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Outstanding Contributor , Bob's Your Uncle!
-----'83 280 SL----- 5 speed....The PIG
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Am I wrong in assuming that the speedometer and odometer should be in sync, and given that they are not, is there an adjustment/calibration that can be done reasonably?
You can probably change the gear on the odometer. They come in different tooth counts (teeth counts?).

Call Jeff at: http://www.odometergears.com/index.html and explain the problem.

He'll help you out.... and then you can use this thread for the replacement.

http://www.benzworld.org/forums/r-c107-sl-slc-class/1495136-odometer-repair-tutorial.html
 

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