Bump Start . . .

Do this with a Twin Cam too many times and throw the flywheels out-of-true - eat your oil pump bearing and ruin your day.....

6 comments:

Caterpillarnut said...

What causes that? The shock load during starting, or ???? Does it twist the crank or cause the tapers to slip?

Noot said...

The jolt moves one flywheel 1/2 a bit on the crank pin taper.

WhitelinePsycho said...

Yikes . . . duly noted.

bake said...

No taper on these Richie. All pressed together

bake said...

No taper on these Richie. All pressed together

Noot said...

Sorry, you always have to tell me twice.... This blog is so informative.