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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain. |
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11-06-2015, 10:07 AM | #1 |
Mike Tune HKS E85 FD 4.88
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Knocking noise from LSD after FD swap
I swapped to Final Drive 4.88 and now the car not passed 100miles ,
diff assembled very good and I hear no noise in straight line but in sharp turning at very very low speed (strating to drive from 0km/h) i hear bad knocking noise , lap lap lap lap lap ... my car has LSD and need LSD additive in gear oil , i use addinol diff oil that has no LSD additive. My car idle rpm increased to 1100rpm by my tuner (moto-mike) and the output torque of my car (stage 2 NA) is 15% higher than stock brz . any idea for removing the noise? Diff assembly adjustment ranges: 2 N.M torque in pinion preload (toyota service manual recommend 1-2 N.M range) 0.00430 in. Backlash (Toyota service manual recommend 0.00512 in. - 0.00708 in. Range) The tooth pattern is so good in the range. |
11-06-2015, 10:26 AM | #2 |
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LSD makes noise normally
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11-06-2015, 10:54 AM | #3 |
Mike Tune HKS E85 FD 4.88
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11-06-2015, 01:49 PM | #4 | |
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The Following User Says Thank You to KoolBRZ For This Useful Post: | Toyota86.ir (11-06-2015) |
11-06-2015, 02:21 PM | #5 | |
Mike Tune HKS E85 FD 4.88
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The knocking noise is so loud & vibrant and i really can't believe oil additive could silent that vibration. |
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11-06-2015, 05:21 PM | #6 | |
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i would make a video of how much amazing popping noises mine makes on slow turning but
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11-06-2015, 07:49 PM | #7 |
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stock or aftermarket LSD?
Is yours a stock or aftermarket LSD? If it is the stock, Hypoid LSD than there are no clutch packs to make noise and it should be silent. If aftermarket, then follow the manufacturers directions and you should be fine.
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The Following User Says Thank You to KoolBRZ For This Useful Post: | Toyota86.ir (11-06-2015) |
11-06-2015, 09:47 PM | #8 |
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change with temp at all? my clutch types LSD is notchy when cold but goes away with some turns
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11-06-2015, 10:03 PM | #9 |
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The Following 2 Users Say Thank You to CSG Mike For This Useful Post: | GT86drifter (11-08-2015), Toyota86.ir (11-06-2015) |
11-06-2015, 10:04 PM | #10 | |
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11-06-2015, 10:50 PM | #11 |
Mike Tune HKS E85 FD 4.88
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11-06-2015, 10:51 PM | #12 |
Mike Tune HKS E85 FD 4.88
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11-06-2015, 10:55 PM | #13 |
Mike Tune HKS E85 FD 4.88
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11-07-2015, 12:49 PM | #14 | |
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Get it back to the shop.
Quote:
It needs to go back to the shop ASAP. Something was put back together wrong. Stop driving it and get it back to the shop immediately. Hopefully it can be fixed without replacing any major assemblies. You might need to buy a replacement/aftermarket LSD if that is broken. As it is, it could lock up at any time with no warning. This is serious. Get it back to the shop.
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The Following User Says Thank You to KoolBRZ For This Useful Post: | Toyota86.ir (11-07-2015) |
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