Friday, May 30, 2008

Headset reassembly

I enjoyed reassembling the headset. As you know I own a 1967 Vespa SS180 released in the USA. That means I have the round headset and my headset shares a lot of commonalities with the VSD (Rally 180). In the very early days of my restore ScooterWorks sold the headlight assembly for $25, which was 50% off. I bought it because the scoot didn't come with a headlight or I would have first tried to restore that.

Before I could reassemble my headset, I needed to get my head around the differences in 6V wiring a VSC and a VSD. As you can see from the links the pilot light is wired differently. My stock pilot light had a "gray" wire attached to it, as it should for a VSD. You'll note in the slideshow that I attached the blue, which is more similar to the VSC. That is the ONLY change I made.

Click on Hiro's detailed schematics for wiring.

Here's how I reassembled my headset:

1) I pulled my wires through the headset on the "switch" side.

2) With painter's tape I flagged each and every wire coming through my headset so I knew where everything was supposed to go.

3) I pulled the switch wires through the headset and pulled the through some excess tubing from the new wire harness was removes so I could get the wire harness to fit up through the frame and headset. Then I ran the wires through the back of the switch box.

4) Follow the switch schematics from Hiro on this blog for wiring your switch. Use a tiny flat head screw driver to loosen each terminal and then run the wire into the corresponding terminal and tighten it back down.

5) Polish your switch cover with Mothers or alike.

6) Now install the indicator light. I purchased a Clauss Studios reproduction indicator before I found my original. I chose to keep my original on the bike. Polish it.

7) The pilot bulb (which looks like a fuse) is held in place by the indicator light. My housing for the pilot bulb is missing a terminal/end point for the bulb; therefore I attached the black wire to the housing with a screw for the short run.

8) Hand screw in the pilot bulb and indicator light. Then use a wrench to "snug" it.

9) Next is the speedo. I have already replaced the speedo glass and bezel and sealed it shut so I gently twisted the white speedo bulb terminal, which holds the blue wire in place, until the white plastic unit popped free. I put the brand new blue wire in it and put the bulb back in and twisted it until it locked.

10) Then I tightened down the speedo by using a small flat head screw driver to hold it in place with the long screw, which you can reach from the base of your headset.

11) Finally the headset . . . I did not need the extension wire that came along with the brand new headlight, because I had a lot of spare, but I did need to cut off the terminal connectors and replace them with ones that would match the light. Easy to do, cheap, and I sealed with shrink tubing.

12) I assembled the light.

13) Then I used the screw mount set to lock the light housing into place. The mount set has a square-ish nut, a large hallow screw, and a tiny screw that goes into the hallow screw. Slide the nut in behind the housing and then lock the housing in place with the hallow nut.

14) The headlight bezel now needs to be slid into place. Take your time so as not to mar the paint. Once in place use the small nut to screw into the hallow nut. Be careful! Everything must be aligned perfectly. The small screws are not tough.

As always if you want to see a picture from the slide show at high res and full screen so you can see the detail, please just ask. This blog is here for you not me. I already did it and have pictures and documentation. This is for all the people who are hestitant to take on a restore or rebuild -- don't be. I am terribly far from an expert or experienced restorer, but I have learned a lot of credible information and I will be happy to give it all to any who ask./span>

1 comment:

Crystal Clear Headlights said...

With this kind of detailed work, no one could get lost following it. I found the wiring color code very helpful, too. Thanks for the link.