sc tach into 69 911 help

[chuckw951]

Hi,

Plugging away on the motor swap project. Tonight I planned to install the SC tach into my 69 911e.

Come to find out that the early tachs are held in by brackets accessible through the front trunk.

Anyway, pulled the old tach. The wires/lightbulbs were compatible (left right turnsignals, highbeam indicator light, instrument lights and tach input (purple/black wire)).

I connected the wires to the SC tach and went to install it. The SC tach has a rubber ring around it to hold it in place.

The tach does not fit with rubber ring around it! The hole for the 69 tach is just too small.

Any thoughts on this? I can't use the brackets for the 69 tach with the SC tach because the SC tach doesn't have the studs.

I was thinking about swapping the "guts" of the SC tach with the 69 tach...but that seems a bit over my head. Perhaps a slimmer rubber ring is available?

Chuck

[CamB]

I was thinking about swapping the "guts" of the SC tach with the 69 tach

I had this done on my car (by the local VDO repair place). I don't think it was particularly expensive.