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February 08, 2004
Terry,
On the several that I have dismantled, they have all had mastic between bezel and glass, O-ring between glass and the next ring in, and an 0-ring between the case and the metal dashboard. I don't think there is supposed to be an O-ring behind the metal reflector ring. It is stepped and fits against the rim of the case, leaving a gap between it and the dial face to let the light through.
One tip here is that you should save discarded O rings from the rear hubs as these will fit around the tach and speedo between the case and the dash.
I think the white / blue innards are to give a brighter (!) reflection around the segment where the needle moves, and less at the right and lower part of the circumference. They are not all like this, earlier ones are just white.
The innards will come out, you need to press the trip rod in against its spring as you remove the cluster. Tricky, but it will work.
I think the "slot" on the end of the trip rod is half of what was once a small hole through the rod where a plastic extension knob of some sort is supposed to fasten on. All the ones I have seen have been like yours. I think that they snap off here really easily.
The later speedo have that extra plastic plug in the back. I think it lines up with another warning light on some models - Smiths were manufacturing the same units for a range of other cars. I think on a Herald 13/60 that I had once there was a green warning light at the top of the dial for the indicaters. Never thought of adding an extra illumination bulb in there. Good idea!
Let us know how you get on!
Guy
"Guy Weller" < Guy.Weller@... > 29208
Posted on February 8, 2004 01:40 AM
Posted to category(s) Carburetor | Drive Train | Engine (internal) | Exterior | Gauges | Ignition System | Interior | Lubrication System | Suspension & Steering | Technical Info | Tuning | Wheels
