Tachometer drive

[opopotts]

Does anyone have the tach drive that fits into a 280 engine block?
thanks

[ja17]

The gears are sold in matched sets and are crazy expensive these days. I have changed individual gears with a good used gear, in pinch, with no bad consequence. M130 sedan gears are the same, but the vertical gear does not have the extension for a tach cable. I believe the tach extension can be removed from your old gear and possibly used on the sedan gear ?? There are early and later improved gears (see BBB) to identify. The horizontal gear in the block, you need, should be the same as more common fuel injected sedan gears of the era (w108 280se, 6CYL.)

[mbzse]

.../... There are early and later improved gears .../...

I placed a picture of original as well as later, improved type gear set in this old 2005 posting (reply#31)
https://www.sl113.org/forums/index.php?topic=3097.msg35314#msg35314
Some good general info on the tach drive to be seen in the old 2005 posting as well


Second pic in this here posting (see below, "Drevsats varvraknare") shows a gear set such as what JoeA mentions; however depicted here is a set for the Sedan type M130 engine (has no rev counter)

[ja17]

Thanks Hans,

Looks like one of the main improvements in the gears is an increased surface area where the gear contacts the bushing, which should lessen the wear on the bushing.

[opopotts]

Do you have this part for sale. The car has a 280SE Sedan engine?

[cabrioletturbo]

Doug i have one, albeit without the threaded nut/cap on the top.
If you do not find a complete assembly, reach out.