At 01:16 PM 11/23/2006 -0700, Colin Parkinson wrote:
" Perhaps you can tell me how to get the innards out of a speedo case? I have got the knob off the trip spindle, and removed the 2 screws on the back, so it is all loose. But I cannot manouvre it out of the case."

Twist the front trim ring to remove the ring, glass, seals and light guard. Remove two screws in back to free the works from the case. Tilt forward to bring the faceplate slightly ahead of the case on the right side. Peek in behind the faceplate on the right side to find the reset gear and shaft assembly shown in these pictures.

Note the position of all parts for reassembly later. At the bottom inside there should be a felt dust seal, a thin metal pressure washer, and a long spring to hold the dust seal in place. Above this find the reset gear with another stronger spring on top. The gear sits on top of an alignment plate and is held on the shaft with a small split pin.

Rotate the shaft as necessary for access to the pin. Use a small flat blade screwdriver or small long nose pliers to un-bend the legs of the split pin and reform it to straight condition. Rotate shaft again for access to the head of the pin. Use a crochet hook or small long nose pliers to pull the pin and free the gear from the shaft. Pull the shaft out the bottom and catch the small bits that fall out as you remove the works from the case.

Reassembly is the reverse of disassembly, but of course you get to fiddle more with the smalll tools to get all the little bits back in place.