Re: broken supercharger
Originally Posted by
performanceisland
I got my 65mm (not 67 as i stated earlier) pulley from EC from their last run of pulleys, in fact I had to wait for it to be made, I'll give it one more shot with some more shims and see what happens, and will call them to discuss, I just wanted to make sure I am doing everything right, and get everyones input since you guys have installed them before.
As far as their gap setting in instructions it says .20 to .30, not 100% sure if that indicated a much bigger gap at first or if it's a typo and they meant it to be .020 to .030, big difference, and I see a lot of typos in their instructions.
If they mean .20 to .30 then the pulley is going to be out of alignment line with the rest of the pulleys. It will be .20 to .30 out of position. I'd say that will lead to premature wear of the belt or belts coming off.
The other pulley that was put together had a large initial gap (.15?)and that meant that the belt on that was out of alignment.
These pulleys were made with cheap so called springs if that is the requirement for the set up.
If you use an OEM pulley the setting is .012 to .016 and it stays at that size. These new pulleys are OK but the spring should be a spring not some plain bit of steel.
The definition of a spring is that it should return to its original shape after a deformation that does not exceed its elastic limit.
These springs drive the SC and ideally they should be flat so that the forces are all down the length of the spring, obviously to get a gap when the magnet is not activated there has to be a gap, and the smaller the gap the closer to being flat the spring is. With a large gap the spring is driving the SC with a steeply angled spring which is not too good for the life of the spring as it will want to buckle under the load a little after a while this will stress the spring and it could fail.
We have seen a picture of a drive plate that got too hot due to slipping while in contact with the clutch plate.
Last edited by onehundred80; Apr 30, 2015 at 08:33 AM.