I stripped mine down today to clean and measure stack height. Question is, the first steel plate at the back is ' trapped' as in it can't be pulled out due to grooves in drum not aligned with back piece ( it can still be jiggled slighty). Is the stack height of 36.5 not including this 'trapped' steel plate?
I think your plates have been fitted wrong in the first place, with a slipper you should start with a friction plate otherwise when the slipper rides up the ramps a steel can drop of the back of the hub and jam. Steve
If it helps someone in a future search..... Just seen on a US forum, someone has posted a picture of fitting instructions. It says stack height of 36.5mm ( not including steel trapped in back of drum). Must be unique to EVR? Happy days
A wise man once said- With the stack fitted in the clutch and pushed back, the last plate in should be 4-5mm below the drum outer edge. Measuring the whole free stack and using one given figure for this leaves room for error, as the internal size of clutch assy's can vary.
It's the fact the trapped steel plate at back of the drum is supposed to be there, and has not been put in first and just dropped down the back is the good news. It's all in correct. Cheers.
There's a little box of info missing from your picture, which states: 36.5mm stack height ( not including trapped steel) so yes a friction first A previous poster said it could have been installed incorrectly and first steel had become trapped. He said on some brands of slipper you put a steel in first. Just giving clarification for future post searches.
You may be getting confused with other information found on the net, I haven't heard of any other slipper clutch that starts with a steel plate, my stm unit definitely doesn't. Steve
My STM has a metal plate that sits the other side of the drum. It looks like a metal plate that is trapped but you would never get it out without removing the drum. It has tabs holding it behind the drum.
Not saying that, as yours is EVR and mine is STM and I've never seen a EVR but it does sound right. Way to check is undo the big nut and check. You need to do this to grease your ramps and balls anyway.
