Re: Fan pulley wont adjust down
I have found when installing a v-belt,the "right" way to get one on that is really tight,is to put it on the smaller pulleys first,then start it on the largest one,and use a wrench to turn the pulley,while you hold the belt from slipping out of the sheave, and it will go on unless it is way too short..(Fireant 911 above described pretty much the same thing )..
You'd think it would be easier to put the belt on the biggest pulley first,then pry it onto the smaller one,but it doesn't work that way..
I don't see why a kevlar belt wouldn't be ok to use on a water pump,though they are a much stiffer and less stretchy construction ,and in your case one might not be flexible enough to stretch over the pulleys..you only need kevlar on a "clutching" application,most everything else you can just use a "fractional HP" type belt or an automotive one,but be aware automotive belts usually are not 1/2" ,they are 15/32"
and may be a different taper than industrial belts..