|10-01-2011 06:19 PM|
|brandonA.||Gears are not quiet. It's hard to say exactly as I have headers and an open exhaust but they seem to have a whiring type of sound at cruise that goes away on coasting.|
|10-01-2011 02:40 PM|
If they are serious about quality control they would WANT them back to see where the problem lies....
|10-01-2011 02:19 PM|
|prostreet6t9||Are the gears quite? A bad set of gears usually does not produce just a vibration. You should have a noise.|
|10-01-2011 01:29 PM|
I found the problem, using the gear marking compound I can see 3 or 4 teeth on the pinion with a distinct line running across the tooth,it is shiny so it is a high spot. It does this exactly where it makes the noise! Then I did a test on the ring and it left a distinct line on 2 of the teeth on the ring also. So i'd say these were messed up to begin with like I had assumed all along.......I am going to try and get them exchanged as they only have 500 miles on them and this problem existed from the beginning. I am not sure how it will go as the truck has been stored for one year which the warranty states 6 months.......I bought them from National Drivetrain not sure how there rep is?
|10-01-2011 04:10 AM|
I have set up a few, no expert by any means. If you only have a few teeth noisy, is the pattern different on those teeth? Common sense tells me if just a few teeth are meshing different then maybe 3 things, faulty ring gear, carrier not true or maybe you got a little foreign material under the ring gear when you installed it.
Also, where are the carrier shims? Every Dana I have done has them under the bearings, which are pressed on. It usually takes a set of sacrificial bearings if you are changing shims much to get the right pattern/backlash. What I have done is take just enough out of the inside of the bearing with a small flap wheel, so the bearing slides on and off without needing a puller. Then when everything is right, press the final bearings on.
|10-01-2011 01:11 AM|
Why do you believe it's caused by only a few teeth?. Rhythmic vibrations can also be caused by worn or damaged roller/ball bearings. If nothing else helps, it might be worth replacing all the bearings -- carrier, pinion, axles.
When you check the tooth contact patterns, you might try checking all the teeth on both pinion and ring to see if anything looks unusual. Whatever the result, I would get in touch with Motive for their opinion.
|09-30-2011 08:51 PM|
Good idea I did that back when I first installed the set of gears 500 miles ago and the carrier was o.k. then so that shouldn't be the problem......
Anybody experience this when setting up gears?
|09-30-2011 08:19 PM|
|willowbilly3||You might want to put the carrier in without the ring gear and run a dial indicator against the ring gear surface. Maybe it's warped a little.|
|09-30-2011 08:14 PM|
ring and pinion experts?
Hello I am setting up a Motive gear ring and pinion in the dana 44 of my scout II. I have the spent the last 16 hours on this and am ready to buy a new set looking for opinions.... My problem is this:
-No matter how deep or shallow the pinion depth is or the backlash is set I get gear noise like a (Grrrr) sound every time the *same 3 or 4 gears on the pinion* are contacting the ring on the drive side.
-I have made every adjustment possible to eleminate this but it will not go away. Personally I have a feeling I have a bad set of gears......
-I bought them new and put 500 miles on them with the same very slight vibration at cruising speed. I feel this vibration is coming from this issue.....
-Anyone else have this noise at the same spot on pinion gears when setting them up? It only makes this noise in the one spot.