CB rotary fuel pump failure, now it runs fine Options

[hydroliftin]

New Year's day I went on a fun run with PCA. We drove a few hours through the Santa Cruz hills in light rain with the temperature in the 50's. I have a 2.0 liter with webers and the CB rotary fuel pump wired into the stock relay board as per the classics thread. The cover on the relay board is pretty good, I don't think it got wet. Over the course of the fun run I started and stoped the car several times with no problems.

On the way home, driving at the speed limit on Hwy 280 I start to lose power, the engine sputters and then dies. I pull to the side of the road, key the ignition and I can hear no fuel pump. I call the tow truck, and an hour later we drop my car off at the mechanic. I try to start the car again, still no sound from the fuel pump. The mechanic shows up a few hours later and the car starts fine. Monday morning, he trys again, same thing.

Anyone have experience with CB rotary fuel pump failures? Seems to me they are pretty reliable from what I have read. Any suggestions as to what the problem might be?

[bobhasissues]

I had a CB pump that out of the box would occasionally not run on start up and other times it would. When it did work it never faltered, but I was never confident that it wouldn't crap out on me while driving. I changed power sources, double grounded it, and even bench tested it about a dozen times. I learned to listen for it to run before I would engage the starter. After a summer of that aggravation I replaced it. No problems with the new one, yet. Someone posted in a related thread a few months back that based upon their experience they replaced their CB (Carter) pump as a preventative maintenance measure every two or three years.