I have found this thread very useful in conjunction with the details at the Late Great Sheldon Brown's website.
https://www.sheldonbrown.com/coaster-brakes.html
My question is specific to a Shimano coaster brake (single speed) hub losing engagement in the forward pedaling direction. Intermittently, inconsistently and not repeatably (i guess inconsistent would cover that....).
The S.B. page mentions a '******er' spring about midway through the above linked page. The Shimano exploded view doesn't show it, but if I remember from my re-pack last spring, it's in the
#11 Driver:
https://www.sheldonbrown.com/coaster...no-cb-e110.jpg
I think my re-pack last spring could be causing the problem, and that's where I'm asking for advice.
-- Could cold temperatures and too much thick grease cause some drag in getting the driver to engage?
Which would them cause me to step on nothing (free spinning forward) as the driver tries to engage - it's never happened standing on the pedals, thankfully!
Before I read the helpful @
SquidPuppet comments about NOT using too much grease, I repacked my hub full with thick, high temp wheel bearing grease. I suspect this is the reason I get the occasional knocking sound as the brake shoes un-stick. And maybe cause the driver to stick as well.
Let me know what you think.
Maybe this could be made into a sticky thread for coaster brakes.
(yes, I know. that was pretty funny. sticky thread. funny.)