p0l1wrath 10 Posted March 12, 2014 So if I jack my car up in the air, start it and put it in gear the n/s wheel spins fine but the o/s wheel stutters, when I hold the n/s wheel the o/s wheel spins fine, the reason for all this is when it gets warm it gets real knocky Anyone know this? Cheers Quote Share this post Link to post Share on other sites
p0l1wrath 10 Posted March 12, 2014 Actually that's a silly question, but when it's in neutral with the engine not running, if I spin either wheel either way, it doesn't move the other wheel at all Quote Share this post Link to post Share on other sites
Roger Chatfield 0 Posted March 12, 2014 Jack it up, put it in gear (engine off), turn one wheel and the other should rotate in the other direction. Rog. Quote Share this post Link to post Share on other sites
p0l1wrath 10 Posted March 12, 2014 Ok, that happens, but the diff on my spare engine does that in neutral Quote Share this post Link to post Share on other sites
Roger Chatfield 0 Posted March 12, 2014 Ok, that happens, but the diff on my spare engine does that in neutral Yes it might do that as you don't have the extra drag created by the driveshafts, brakes and wheels. Even when in neutral you still get a thing called parasitic drag, it's worse when cold, it's this drag that causes the wheels to rotate when you run the engine when jacked up. If you want to prove the diff on your spare box put it in natural hold the input shaft and one driveshaft flange and then rotate the other driveshaft flange, it should rotate, then put it in gear, it shouldn't rotate.. (I assume you don't have a LSD) Rog. Quote Share this post Link to post Share on other sites
p0l1wrath 10 Posted March 12, 2014 I have the standard diff, and your theory works on both boxes, another quick question is, I have 5 degree play on the diff in my car, but absolutely none on my spare, this is when they are turn at the cups and both cold Thanks Quote Share this post Link to post Share on other sites
Roger Chatfield 0 Posted March 13, 2014 Nothing to worry about, it's normal to have a bit of play, it's just the back lash of all the gears meshing. If your diff was broken you'd know about it, basically you wouldn't get any drive. Rog. Quote Share this post Link to post Share on other sites
p0l1wrath 10 Posted March 13, 2014 Ok thanks for you help, may have found the cause now Quote Share this post Link to post Share on other sites
seanl82 23 Posted March 13, 2014 Nothing to worry about, it's normal to have a bit of play, it's just the back lash of all the gears meshing. If your diff was broken you'd know about it, basically you wouldn't get any drive. Rog. 4.5 maintainer by any chance Rog? :lol: Quote Share this post Link to post Share on other sites
Roger Chatfield 0 Posted March 13, 2014 Nope, Tracker man mate, GWS25, none of that VL rubbish...lol Quote Share this post Link to post Share on other sites
