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Unread 01-23-2015, 07:01 PM   #1
Evan1981
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Help with transmission noise? (videos)

I bought a temporary permit to drive my new 2005 LJ with an NSG370 to my hometown. It was a 3 hour drive at around 70mph. When I slowed down and the wind noise died down I noticed a noise that wasn't there during the test drives. It happens when I'm off the clutch. As soon as I put a little bit of pressure on the clutch it stops. Also, the center console was warm.

Here's one from the inside accelerating from a stop.

Here's one from the inside in neutral while pressing and releasing the clutch.

From outside in neutral.


What's the diagnosis?

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Unread 01-23-2015, 09:28 PM   #2
WhiteMtnJeep
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Throw-out bearing? Oil level in trans good? Right type of oil in trans? There's only one thing left after that.
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Unread 01-24-2015, 08:20 PM   #3
Evan1981
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Thanks WhiteMtnJeep.

This morning I went around to a few shops until I found 14mm and 17mm hex wrenches, a fluid transfer pump and 2 litres of Royal Purple Synchromax.




I loosened off the fill plug first to make sure I'd be able to fill it back up and then I dropped the drain plug. Looks like it's been a while since the oil has been changed. This picture shows the amount that spilled out of the fill hole.




I haven't seen many examples but I would say this amount of shavings means the oil change is a bit late.




I filled it back up, started it up and let it get to operating temperature. So far so good. No noise. ...But... I didn't get to go for a real test drive because while I was underneath I noticed that one of the skid plate bolts had let go.

It's tough to tell from the picture but it looks like the last owner used a nut between the skid and the frame on the middle and forward bolts but the rear bolts have nothing between the skid and frame.




I tried relieving some of the pressure on the skid plate with a floor jack and screwing it back in but without the pressure the bolt just fell out. You can see some crappy welds between the washer and nut. I'm not sure what he was trying to do here.




Should there be a nut welded to the inside of the frame that the skid plate bolt threads into?
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Unread 01-24-2015, 10:06 PM   #4
WhiteMtnJeep
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Quote:
Originally Posted by Evan1981 View Post
Should there be a nut welded to the inside of the frame that the skid plate bolt threads into?
You're Welcome. Sounds like it worked out well for you. The amount of shavings on the plug doesn't look out of the ordinary to me. It has done what it was designed for.

As for the skid plate bolts I'm not sure what the idea was there. Are there nutserts in the frame where those bolts are and if so, are the threads good? The way the nut/bolt looks in the last pic it's hard to tell what the idea was. If the nutserts are missing or shot it's not a difficult task to repair them. Here's a thread about it.

http://www.jeepforum.com/forum/f9/nu...nstall-390635/
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Unread 01-24-2015, 10:35 PM   #5
Evan1981
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Location: Saskatoon, SK
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Yeah, I looked at it again and the nuts that I thought were supposed to be spacers are a failed attempt at fixing messed up original nuts. I'll check out the link.
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