1987 TII build for my son

RETed · 03-12-2015, 12:13 PM

Quote:

Originally Posted by jtbshaw

After the dyno tuning, I'll swap the fluid again with some Redline, as I have always had good success with that. The transmission is grinding going into second, on either upshift or downshift. Don't make much sense as the TII trannys usually don't have bad 2nd gear issues. I'll swap it and drop some Redline in on the replacement and hope that gets everything settled down and working properly.

IME, the 2nd gear can be a problem...
If you redline shift from 1st to 2nd, the transmission will almost always reward you with a "scratch."
The stock gears ratio from 1st to 2nd is too wide - IMO.
When we used to hit the drag strip, I will "short-shift" from 1st to 2nd and never at redline - I will tend to hit that shift right at 6500RPM and then give it a split second longer just to not wreck the synchro.

Count me in as another disappointed Royal Purple experience...
Changed out my Redline MT-90 for Royal Purple 75W90 trans fluid, and it did not like it.
Too bad, cause David Canitz (dunno if he's still there) was a heavy proponent of Royal Purple stuff back on the big mailing list years ago.
I gotta change back to Redline MT-90...

-Ted

jtbshaw · 03-12-2015, 01:39 PM

It is disappointing about the Royal Purple. The 2nd gear grind is happening at sub 3000 rpm shifts and no load, just a nice easy shift. Even letting the rpms drop to near idle. It doesn't happen every upshift but has happened on any and every downshift.

After the tuner is finished, we can straighten out these issues. Just excited that it is at least drivable right now.

03-12-2015, 01:39 PM	#32
jtbshaw ORD - Old Rotary Dude Join Date: Feb 2008 Location: Pelham, AL iTrader: (3) Posts: 319 Rep Power: 17	It is disappointing about the Royal Purple. The 2nd gear grind is happening at sub 3000 rpm shifts and no load, just a nice easy shift. Even letting the rpms drop to near idle. It doesn't happen every upshift but has happened on any and every downshift. After the tuner is finished, we can straighten out these issues. Just excited that it is at least drivable right now. Last edited by jtbshaw; 05-01-2015 at 10:44 AM..