i'm replacing bearings on a cmb .67 and it has an open front bearing. does anyone know why it is open? can i run a seal on the flywheel side?
you may be able to get wib bearings with a seal. the cmb bearings don't have one. i prefer a seal also, as they seem to improve low end torque, especially on a 21. it is not a big deal on the larger engines.
you may be able to get wib bearings with a seal. the cmb bearings don't have one. i prefer a seal also, as they seem to improve low end torque, especially on a 21. it is not a big deal on the larger engines.
Yes that is true, a sealed bearing will help crankcase compression/low end torque if the fit between the crank and housing is less than wonderful from either loose machining tolerance or if you let the bearings go to long in that particular engine and the crank stuffed the housing up. But in a normal engine it is not necessary and it does introduce unwanted drag.
John
i'm replacing bearings on a cmb .67 and it has an open front bearing. does anyone know why it is open? can i run a seal on the flywheel side?
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