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RX-7 2nd Gen Specific (1986-92) RX-7 1986-92 Discussion including performance modifications and technical support sections.

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Old 09-21-2013, 05:09 PM   #1
infernosg
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The return spring actually doesn't apply centering force from 1-2 gear shifts, only 5-reverse. If you look closely at the design of the spring and how the shifter works you'll see this. The return from 1-2 is actually achieved through the upper and lower bushings, wave spring, and gaskets on the shift lever itself. I always thought this spring was broken on my original transmission but when I removed it I found the spring to be perfectly intact. It was only once I replaced all the bushings and other equipment in the shift level did everything tighten up.
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Old 09-21-2013, 09:46 PM   #2
Rotary Evolution
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Quote:
Originally Posted by infernosg View Post
The return spring actually doesn't apply centering force from 1-2 gear shifts, only 5-reverse. If you look closely at the design of the spring and how the shifter works you'll see this. The return from 1-2 is actually achieved through the upper and lower bushings, wave spring, and gaskets on the shift lever itself. I always thought this spring was broken on my original transmission but when I removed it I found the spring to be perfectly intact. It was only once I replaced all the bushings and other equipment in the shift level did everything tighten up.
false, the wire spring acts as the 1/2 return spring. if the shifter is sloppy or too tight though it will not work very well.

if the bushings are set too tight the drag applied will make the return weak and feel limp. mount the shifter first without any wave washers, then apply one to the bottom first if needed to eliminate slop. also apply some grease to both of the pivot balls on the shifter.

5/R has a plunger/spring, which the transmission should have on both gates instead of the rigged pos setup we have. the FD has the proper setup on both gates.

and of course, be sure the roll pin is installed. if it's not the shift rod may be binding on the burr left behind as it sticks to the improper gate inside the transmission(looks like it is but the last picture isn't that great).
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Last edited by Rotary Evolution; 09-21-2013 at 09:54 PM.
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