Re: Johnson rotary valve bearings

[david-bartlett]

quote dmbono:

I worded the question badly- Can I use shielded bearings instead of open?

I guess you could. The original open bearing would have been lubricated from the fuel mix going through then engine, which is pretty foolproof if one adds the correct fuel/oil mix to the motor.

A sealed bearing will not benefit from this obviously, and would work fine until the original lubricant inside the seal/shield gets use up, worn out, or contaminated. You probably won’t use the motor enough to do this.

Just my $.02

If it were me, I would go with open ball bearings.