T
Just curious if anyone has ever run a shift assist bearing in a QRS. I know they worked very well on Cat secondary clutches.
Shift assist
- Thread starter tchriste
- Start date
They have a certain utility to make make a helix angle proceed, acting as-if it is approximately 3 to 4 degrees bigger.
Like a straight 40 on a roller secondary will now act as-if its a 43~44(ish) degree.
They still get dirty like any other part inside the clutch, if its not cleaned and can also seize up and grind.
Sometimes customers with my clutch kits use these secondary bearings and lose 300~400 rpms on backshift. I'll go through a bunch of questions, including asking IF they've installed the original swivel bearing on the secondary spring. Finding they installed one of those bearings (they never read the instructions not-to-do-so) then remove it, put the oem washer back in and, voila....correct engine speed again.
Dont take that as being bad; rather a statement of fact to show the bearing MAY lower engine speed and need to re-calibrate IF that happens.
If you run one, be prepared to tune it, like setting a day aside to do so.
...or be prepared to go back to your previous calibration so you can ride the way the clutches backshifted before the install.
Like a straight 40 on a roller secondary will now act as-if its a 43~44(ish) degree.
They still get dirty like any other part inside the clutch, if its not cleaned and can also seize up and grind.
Sometimes customers with my clutch kits use these secondary bearings and lose 300~400 rpms on backshift. I'll go through a bunch of questions, including asking IF they've installed the original swivel bearing on the secondary spring. Finding they installed one of those bearings (they never read the instructions not-to-do-so) then remove it, put the oem washer back in and, voila....correct engine speed again.
Dont take that as being bad; rather a statement of fact to show the bearing MAY lower engine speed and need to re-calibrate IF that happens.
If you run one, be prepared to tune it, like setting a day aside to do so.
...or be prepared to go back to your previous calibration so you can ride the way the clutches backshifted before the install.
- Oct 14, 2008
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Joe do you still have the 137” 3” track? What pitch is it? What track was it? It would be cool to run it in the spring on the glaciers. What was the track speed that you got?
Thread hijack of the finest right here.
Thread hijack of the finest right here.
