S&S motorcycle engines Archives - San Diego Custom Motorcycles

Jul

Harley-Davidson M8 Engine Problems

Harley M8 engine with blown head gasket.

Thanks for the informative video, all makes sense to me. Those that disagree with your cause and effect explanation are going to do so regardless of what you say and show, that’s just the shitty side of human nature. This issue is fairly prevalent talking to Harley people. I really believe your theory is plausible or even probable. Read more

Aug

S&S Cycle Engine Assembly

In this video, Wally Cahill asks S&S engine assembly supervisor Travis Egge how the S&S motorcycle performance engines are put together and end-of-line tested.

All S&S T-Series engines have gear drive cams. The cranks are three piece with the mainshafts forged on to the flywheels. There are only two joints where the crankpin is pressed into the flywheels. Check out this video series about our flywheels. https://youtu.be/o0M9yd4i70M S&S crankcases use Timken bearings on the sprocket shaft. The inner cam bearings are full complement straight roller bearings (no spacers) made by Torrington. The outer bearings are ball bearings because of the close tolerance required by the gear drive cams. Read more