balanced or unbalanced engines.

I think that is mainly for racing.

Developed by Gene Berg and Bob Dixon in 1972 Why a counterweight crankshaft? The VW air-cooled engine is designed for low RPM, low power output and high mileage use. When used that way it gives many years of trouble free service with little or no wear. However, the higher the RPM, power, or the quicker the acceleration, the more the centrifugal force bends the crank at the center main. This bending force occurs because the two center rod journals are on the same side, putting all the weighted forces on one side of the crankshaft. This pounds out the case at the center main saddle, plus makes the pulley and flywheel run out, often damaging the case at the pulley end. It also puts the rod into an acute angle, one of the things which drives wrist pin keepers out of the piston. If this bending gets too bad it can cause rod breakage or even the loss of a flywheel. Berg counterweights balance this effect so the crank not only stays straight, it also rotates on a film of oil, as it should. Crankshaft strength is also increased with the addition of the counterweight. This provides longer case, rod, piston, cylinder, and bearing life.

The best thing to do for a stock T1 engine is to balance the stock assembly, read some of the late Bob Hoovers writings, he was the most correct and anal person I know of without something to sell. Gene Berg still is considerer a "God" by some today, but proven very, very wrong many times .

Try to get hold of a copy of "The Sermons" by Bob Hoover, I have the original release on a Cd, Most of his writings should be available through search engines or Google groups. Find RAMWA on Google groups and do a search..

J.

Search for Tulz or Tulz series by Bob Hoover.

Holy crap I found the Tulz series and it printed. Thank you.

Jim, How come i cant message you?

Me or Speedy Jim?

You, my messages get kicked back, bad address. fatal flaws, blah, blah blah.

I don't know why. I want to leave it that way to avoid spammers.