To bring back an old thread since one member asked me.
I ended up getting one of the ebay specials and installed it on my custom L diesel engine ....long story. Well it worked for almost a year and then left me stranded. Stopped charging. I was on the road and ordered a replacement from NAPA (Canada) and a higher end one came in and cost me over $170 (without the vacuum pump). That one works awesome. I changed over the vacuum pump (which still works) and all was good. Since everything in my engine setup was custom I can't say how it would work on a 3B.
I ended up getting one of the ebay specials and installed it on my custom L diesel engine ....long story. Well it worked for almost a year and then left me stranded. Stopped charging. I was on the road and ordered a replacement from NAPA (Canada) and a higher end one came in and cost me over $170 (without the vacuum pump). That one works awesome. I changed over the vacuum pump (which still works) and all was good. Since everything in my engine setup was custom I can't say how it would work on a 3B.