Wednesday, December 7, 2011

SPEEDOMETER 1.3

Special tools are a MUST when working on speedometers, and each series requires similar, but slightly different tools because of minor--but important--differences between series. At this point I have designed and built a dozen and a half special tools to work on these little buggers. Seems like I build a new tool every other day!

I use this tool to remove the speedo needle without damaging it. It's for the early Saab VDO speedos used in 95, 96 and Sonett V4's. For the later 95, 96 and Sonett III speedos I need a slightly different needle removing tool.

This little gem is a pusher/installer. The lateral gear/shaft ass'y must be pushed out [from the RIGHT side] before the main input shaft can be pushed out. Trying to do this without the tool invites an instant broken gear/shaft. The left side of the tool pushes the retaining ball back IN, during reassembly of this part of the speedometer.

This is the side of the speedometer with the longitudinal transfer gear set removed. I need the puller tool [in red] to remove the brass gear on the transfer set or the brass gear on the register shaft [the gear visible at the top right on the speedometer body]. I've made three different pullers for the different series of VDO speedometers used in Vintage Saabs.

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