I've just finished rebuilding a couple of the motors
and since changing to Lubriplate Assembly grease, I've
eliminated all the slow problems...Remember when u lube the paddle you also need to lube the tub in rides in..
Also with the Lubriplate it only takes a little over an inch of vacuum to run the wipers, which translates to always working when needed...
Geoff
49 Chev 4400
52 GMC 350
55 Chev 3800
52? JD420C w/JD90 Loader
37 D4 Cat