blistovmhz
NAXJA Forum User
- Location
- Vancouver, BC
You definitely have something going on there. We ran the same set of Uni's for 5 full racing seasons. They got pulled and have been on one of the team members XJ for 4+ years now, which is probably 50K miles, with many race course pre-runs. How do they separate? The bearings are sandwiched when installed. I'd say either your stub isn't right (too long) and you aren't getting any preload on them, or you are overtorquing and smashing them.
No idea man. Both the D30's (one on a mostly stock XJ on 33's and the other on my v8 xj with 35's) have the same issue. I'm running chromoly shafts from... Can't remember where, and I'd considered the stub being too long, but the other 30 is on stock shafts and having the same issue. We always torque to 175ft/lb, and re-check the torque after a few hundred km, but it never changes. Checked my torque again last night and it's still bang on 175, despite both uni's being wobbly.
Just ordered two new Timken units (same as always) and will see what I can find on the old ones, but I'm guessing once again, I won't see anything obviously wrong without tearing the uni's open.
What can I be looking for on an old Uni? I figure once they're apart, unless I find chewed bearings, I can't really check anything else as no one seems to have any specs published.