Thread: 10ee 4000 vs 2500 rpm - power train/spindle differences?

Originally Posted by Cal Haines

It's been some time now, but I think someone said that Monarch still had NOS tachometers. Worth a call...

Does anyone know what the difference is between the tachs, apart from the dial? Is it just the gears?

Cal

Here are some pictures of the interior of a round dial tach, 2500 RPM:

And a few more:


My apologies for uploading these pictures again, they were all uploaded a few years ago in another thread.