Sunday, April 20, 2014

Sunbeam S7 spit as polish

The brightwork on KYL95 certainly has lots of patina. I thought perhaps too much. Some of the rust on the handlebars is just surface rust. Yes there is pitting, but its not bad. The headlight surround is also ugly, but not really bad.

I was searching for methods of chrome cleaning that won't marr the surface and came across some discussions involving aluminum foil and water. It sounded reasonable. The aluminum is soft and won't scratch steel or chrome. The water provides slight Aluminum Oxide to build up, which provides the slight chemical reaction and mild abrasive action.

Mothers polish is just too abrasive.

I tried it on an inconspicuous spot and was pleased with the results. Working upside-down the water tended to run off, so I spit on it. That worked even better than water.


The photo doesn't do it justice, but it looks so much better maintaining a level of patina without the rust layer.

Saturday, April 19, 2014

Sunbeam S7 clutch cable

KYL95 needed a new clutch cable. The original was beginning to fray around the upper ferrule. (I've been stranded with a snapped clutch cable and its not worth the risk.)
I obtained a Venhill universal cable kit.  It came with the following parts and a nice set of directions on how to make up the cable properly. Many of the pieces I didn't plan to use, but everything was there.
Stripping the original cable off showed the poor condition of both the sheath and cable. I was mainly concerned with the fraying, but the bends in the cable were making more slop than needed in the adjustment.
The new sheath was cut to length, and routed with the end cap that came with the kit fitted to the clutch lever.  The ferrule was slid up tight and pulled tightly by hand with the adjustment fully retracted.  The cable was then kinked to one side indicating the correct length. I then manually made a birdcage shape at the end and soldered the ferrule in place.
The cable is now straight and pulls much easier through the nylon-lined sheath.

Friday, April 4, 2014

"Project Bantam" - Tire Mounting

It turned out the best place to obtain the Carlisle Power Trac rear tires was Walmart.  They had them the following day, and there were no shipping charges.

The rims were de-rusted and the rust holes were filled in with bondo and glazing putty.  The top coat was a matte finish to hide my poor bodywork skills on curved surfaces.
 
The tires went on easily with new inner tubes.  The 4.8" width is marginal compared to the original 5.0".  They really do look good though.