86 Turbo Transmission "grinding" - Nissan : Datsun ZCar forum :Nissan Z Forum: 240Z to 370Z
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post #1 of 4 (permalink) Old 10-13-2016, 11:17 AM Thread Starter
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86 Turbo Transmission "grinding"

I recently purchased an 86 Turbo. I find that when I shift from 1st-2nd and 2nd-3rd, there is a "grinding". I have gone through the records that came with it and there was a new dealer installed clutch installed when the car had about 60,000 miles on it, and it is currently around 75,000. Any thoughts and solutions would be greatly appreciated....Thanks
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post #2 of 4 (permalink) Old 10-13-2016, 12:02 PM
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pretty common for an abused z31 tranny. To help, put in REdline MTF or the equivalent Royal Purple product. Not a miracle cure but will smooth things out. Pause between shifts. trying to make the 1/4 mile at every stoplight doesn't work well. Rebuild the tranny and get new synchros in there. probably nothing to do with the new clutch.

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post #3 of 4 (permalink) Old 10-13-2016, 04:34 PM Thread Starter
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Thanks for your help rogez
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post #4 of 4 (permalink) Old 04-29-2019, 07:26 AM Thread Starter
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Originally Posted by rogerz View Post
pretty common for an abused z31 tranny. To help, put in REdline MTF or the equivalent Royal Purple product. Not a miracle cure but will smooth things out. Pause between shifts. trying to make the 1/4 mile at every stoplight doesn't work well. Rebuild the tranny and get new synchros in there. probably nothing to do with the new clutch.
I finally got around to changing the transmission fluid with Redline MT-90 a few weeks ago while the car was put away for the winter. I took it out for a quick spin yesterday, and with the new fluid it shifted perfectly, no grinding at all!!
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