Diff Chatter or shudder
12-06-2010, 12:56 PM
#1
Thread Starter
Diff Chatter or shudder
I searched UTH and found only one thread that 100% describes the issue i have, which is a shuddering/chattering feeling when taking off from a stop, usually when i am initiating a turn (happens turning both left and right, but mostly left).
here's the thread, too bad the OP is no longer on the boards (i emailed him though so maybe he'll respond): https://www.s2ki.com/forums/index.php?showtopic=494187
[QUOTE=PilotChris,May 31 2007, 05:17 AM]On the way home from work, I did some stops and starts, trying to make the diff chatter again.
here's the thread, too bad the OP is no longer on the boards (i emailed him though so maybe he'll respond): https://www.s2ki.com/forums/index.php?showtopic=494187
Originally Posted by PilotChris,May 30 2007, 09:30 AM
I just changed my diff fluid over the weekend and now once in a while my car is making a chattering noise/feel just as the clutch engages and the car starts to roll. It feels pretty obvious that it's coming from the rear, and sort of feels like the rear tires break loose for a second.
Oh, I used Redline 75W-90 Gear Oil.
Anyone have a clue what could be causing this?
Thanks,
-Chris
Oh, I used Redline 75W-90 Gear Oil.
Anyone have a clue what could be causing this?
Thanks,
-Chris
12-06-2010, 01:20 PM
#2
Yes, I've had this as has Spokes Man. He switched his diff oil to the LE stuff and it solved the problem, even though it had fresh Honda lube in it.
LE 1605
^This is the stuff I'm talking about. This link goes to Ricks2k.com.
LE 1605
^This is the stuff I'm talking about. This link goes to Ricks2k.com.
12-06-2010, 01:29 PM
#3
Chris, I see you're in Irvine. I believe that Shane, the owner, of Aliso Viejo Auto Center stocks this lube.
Aliso Viejo Auto Center
Aliso Viejo Auto Center
12-06-2010, 01:37 PM
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You'll probably get a bunch of replies after my post from members who disagree, but I recommend not going with any gear oil with a visocity range (eg: 75W-90).
Go with a straight SAE90 viscosity gear oil like Motul 90PA. Compare it to the Redline you dump out and you'll see there's a noticable difference in thickness.
The service manual calls out SAE90 and if you remember what came out of your differential the first time you drained it, the factory fill oil is very thick.
Go with a straight SAE90 viscosity gear oil like Motul 90PA. Compare it to the Redline you dump out and you'll see there's a noticable difference in thickness.
The service manual calls out SAE90 and if you remember what came out of your differential the first time you drained it, the factory fill oil is very thick.
12-06-2010, 01:53 PM
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Originally Posted by leester01,Dec 6 2010, 02:37 PM
You'll probably get a bunch of replies after my post from members who disagree, but I recommend not going with any gear oil with a visocity range (eg: 75W-90).
Go with a straight SAE90 viscosity gear oil like Motul 90PA. Compare it to the Redline you dump out and you'll see there's a noticable difference in thickness.
The service manual calls out SAE90 and if you remember what came out of your differential the first time you drained it, the factory fill oil is very thick.
Go with a straight SAE90 viscosity gear oil like Motul 90PA. Compare it to the Redline you dump out and you'll see there's a noticable difference in thickness.
The service manual calls out SAE90 and if you remember what came out of your differential the first time you drained it, the factory fill oil is very thick.
12-06-2010, 01:55 PM
#6
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Not one to recommend thinner than OEM oil generally for a rear diff. The harder I drive something the thicker oil I run. The S is a car that's often driven hard by people.
12-06-2010, 01:56 PM
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I just looked at the LE1605 MSDS provided on the Rick's link.
It's classified as a SAE110 gear oil. I wouldn't use it in a differential with no known problems due to perfromance loss from sluggish gear movement in the thicker oil, however this seems to be the hot ticket for differentials that have already enduced some damage from thinner oils or lack of maintenance.
Motul 90PA for diffs in good working order
LE1605 for diffs with wear issues
It's classified as a SAE110 gear oil. I wouldn't use it in a differential with no known problems due to perfromance loss from sluggish gear movement in the thicker oil, however this seems to be the hot ticket for differentials that have already enduced some damage from thinner oils or lack of maintenance.
Motul 90PA for diffs in good working order
LE1605 for diffs with wear issues
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12-06-2010, 02:04 PM
#9
Thread Starter
Originally Posted by leester01,Dec 6 2010, 03:56 PM
I just looked at the LE1605 MSDS provided on the Rick's link.
It's classified as a SAE110 gear oil. I wouldn't use it in a differential with no known problems due to perfromance loss from sluggish gear movement in the thicker oil, however this seems to be the hot ticket for differentials that have already enduced some damage from thinner oils or lack of maintenance.
Motul 90PA for good diffs
LE1605 for diffs with wear issues
It's classified as a SAE110 gear oil. I wouldn't use it in a differential with no known problems due to perfromance loss from sluggish gear movement in the thicker oil, however this seems to be the hot ticket for differentials that have already enduced some damage from thinner oils or lack of maintenance.
Motul 90PA for good diffs
LE1605 for diffs with wear issues