Re: EC SC pulley - noise when engine cool
Originally Posted by BLACKSRT-6
You would need to install one to understand!
I have done things like this for years. Been there, done that.
If there was a 1/4" clearance it would fall on, but if there was .0005" clearance you would think it would not go on as it would co ck and lock diagonally until there was sufficient engagement to slide on parallel.
Depending on the width of the part and the diameter, that is the ratio of one to the other, the engagement required to slide would be different. A narrow width and a large diameter will co ck and jamb all the way until it seats and the less clearance there is the worse it is to get on. A thin lubricant helps the situation by keeping the parts separated by the oil film.
Many shafts have a diameter a few thou less at the start to get the other component started. You have probably seen this and realized at the time what it was for.
PS I found you can't use the word co ck. As they say on Top Gear, Oh co ck!
Last edited by onehundred80; Mar 22, 2012 at 07:20 PM.