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Reply to "Speedometer / Odometer ratio adapter"

 

Yes, the readily available solutions are mostly expensive.

It all comes down to whether you want the speedo to work as it should or if you just want to know how fast you're going.

Most of us have found (depending on tire size, transaxle gearing, and tach accuracy) that you can pretty closely 'read' your speed out in top gear by doubling the tach reading and adding just a little.

At 3000 rpm, I'm doing about 63 mph, etc.

My speedo error turns out to be about 10 per cent high. It's not off by a fixed amount up and down the dial.

So, under about 40, the speedo is sort of close. By the time I'm at 50, I'm in top gear and just do the double-the-tach trick. This is nonsense that would be inexcusable in a modern car, but hey, no one ever claimed these cars are normal.

There are usually more serious issues that need fixing with these cars, but If this is the worst you've got, maybe it's worth springing for having the speedo rebuilt at one of the reliable shops.

 

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