Speedometer woes
Seriously, though, I replaced the guts on my '67 MG Midget speedo with the innards from a '74, but that didn't involve disassembling the drive unit--which I tried unsuccessfully with the '67 (messed up the clock spring). Basically, it looks like dealing with the odometer drums is pretty idiot proof. In my experience playing with the Midget speedo, it's the clock spring and magnet drive that are more delicate. Then there's having enough spare parts lying around if [x] component is not serviceable.
All things considered, around $300 (his current rebuild rate) give or take is probably worth freeing me up to continue the kitchen rebuild so the wife doesn't move out.
Well, let's see whether I'm overwhelmed by an urge to take the darned thing apart when it gets here, or if I'm able to control myself... I'm eager to see it in the flesh. It'll be a neat finishing touch to this build, for sure.
Here is an exploded view of the Stewart Warner speedo from the Jeep this guy is restoring. Its guts look roughly similar to the Harley SW gauge... with a few obvious differences...
Last edited by NM Pan-shovel; Nov 12, 2023 at 11:22 AM.
"One side of the trip and odometer is retained by a flat spring.
Use a flat screw driver to release the spring and remove the odometer.
The trip meter is a bit more tricky because you need :
1 - release the flat spring
2- pull the trip meter out on the flat spring side
3- push the other side towards the inside.
4- remove the reset lever
5- remove the external gear
6- remove the trip meter."
Seriously, though, I replaced the guts on my '67 MG Midget speedo with the innards from a '74, but that didn't involve disassembling the drive unit--which I tried unsuccessfully with the '67 (messed up the clock spring). Basically, it looks like dealing with the odometer drums is pretty idiot proof. In my experience playing with the Midget speedo, it's the clock spring and magnet drive that are more delicate. Then there's having enough spare parts lying around if [x] component is not serviceable.
All things considered, around $300 (his current rebuild rate) give or take is probably worth freeing me up to continue the kitchen rebuild so the wife doesn't move out.
Well, let's see whether I'm overwhelmed by an urge to take the darned thing apart when it gets here, or if I'm able to control myself... I'm eager to see it in the flesh. It'll be a neat finishing touch to this build, for sure.
Wait a minute John. Someone forgot to tell this guy you couldnt take it with him.
The wood arrangement on which the tool rests is a die for crimping the new (or refurbished old) bezel back on. He used the wrong method for cutting the big hole and chipped the wood (I make cabinets as a hobby). The far better method is to cut a hoop for your router, then plunge your spiral bit and just orbit the router... voila. Perfect, clean hole with a flat bottom to receive the bezel.
But if I were to do a series of speedos, I'd just walk next door to my machine shop and have a die CNC machined out of 6061-T6... oh, yeah, that kitchen thing again...
Last edited by NM Pan-shovel; Nov 12, 2023 at 12:57 PM.
The Best of Harley-Davidson for Lifelong Riders
https://scottspeedometer.com/
https://scottspeedometer.com/









