I was wondering if anyone has experienced real rough gear shifting in their trans. (stock or bebuilt)? I just had mine rebuilt and it was fine for a few months then it became real hard to get into gear! Also I put on a B&M Short Shifter and was wondering if anyone else had problems with short shifters with those transmissions? Would it be a possibility to put ATF in it? Is that good or bad for this particular trans? Maybe an additive to smooth things up? I was wondering if when they rebuilt it they didn't put in the blockers with the synchros? Anyway, if anyone can tell me anything it would be great! From one RX-7 owner to another!

Thanks, -Chris Hunter-
Streetdreams

 

What kind of gear lube are you using? You might see some improvement using Royal Purple, Redline MT-90, or Amsoil. Since your in FL I guess we can't blame the cold.

 

Maybe time to change your fuilds and also like cpa7man said..

 

I am using Royal Purple 75W-90 that is less than 10,000 miles old, and this morning it was 32 degrees, so yes it is cold in FL!

Thanks though!
-Chris Hunter-
Streetdreams

 

Stiff when cold is completely normal.

Do not put ATF in there.

 

But it's stiff to the point that an once of more pressure shifter would cause grinding! I have to ease it into each gear! Is it normal for it to be that stiff?

 

Digging up a month old thread...I also have somewhat still shifting...I have Amsoil 75w90 in the tranny and still feels stiff...Also have the B&M shifter...A frined in Oklahoma City, his shifty like it's sliding on butter...Feels almost too loose but feels good...Would be nice to smooth things out a bit.

 

Could bad shifter bushings be a cause? They're only $20 and a lot of people replace them...

 

I think your problem is the B&M shifter. When i put mine on, I got the similiar problem. When cold it's hard to get in 2nd or 3rd. When it gets hot then it's only hard to get in 2nd.

Also after like year, I get some kind of strange noise coming from shifter. I have to hold it to stop