Take that NJFBOA 3rd Gear HAters! - NJFBOA - Home of New Jersey's Camaros and Firebirds

ar0ck · 10-04-2005, 07:06 PM

I have found the cause for my unfortunate and somewhat common missed 3rd gear! Â*Today I got a phone call from All Star Transmission in Haldean, and the owner Chris told my dad that the 3-4 Shift Fork is broken!!! Â*The trans is currently locked into 4th gear. Â*I have hear this being a common problem in 94+ T56 transmissions so I decided to put a little research into it on CZ28.com

http://web.camaross.com/forums/showthread.php?
t=201292&highlight=Bent+3-4+Shift+Fork
Heres some things I found:

Quote:

Originally Posted by zupmanZ28

I went to the track a couple weeks ago trying to sort out my launches with the 2 step and Et drags, and on the second run, i went down the track just fine, but when i went to downshift and make the turn on the return road, i couldn't get the tranny out of 4th gear. i physically had to pound on the shifter to get it out of gear. Then i couldn't get it to go into any gear. Finally after coming to stop i managed to muscle it into 1st gear, and then muscle it through the rest of the gears. After doing this a couple times, the tranny feels perfectly normal again. It shifts perfectly into every gear.

some more info,
the time before this at the track the car absolutely refused to go into 3rd gear on power shift. The only way it would go is if i granny shifted it.

I've also been hearing some strange noises coming from the tranny/clutch area when i slow down and then shift into neutral. it sounds like something is still spinning when my foot is on the clutch. Pumping the pedal usally solves this problem (i assume this is the throwout bearing sticking to shaft sleeve, i forgot to grease it last time i assembled everything, i suppose it could be the pilot bearing as well)

the problem seems to have gotten worse since i changed the fluid, it had valvoline synthetic atf in it, and i switched to mobil 1 synthetic atf.

Any thoughts or ideas on whats goin on here? Id rather not rebuild the tranny if i don't have to, are there any fixes to this? I'm gonna take the clutch assembly apart and replace both the pilot and throwout bearings, and possibly that slider sleeve the t/o bearing slides on, i know they splinter easy on ford t-5's, not sure if it's a problem with t56's as well...

Eric

Quote:

Originally Posted by 95Blackhawk

Well, I am glad

someone else had the same problem I did. Â*My sticking in 4th occurred on a hard shift from 3rd to 4th. Â*Anyway, what I did was take my tranny out (had to do my clutch anyway) and took the front and back case covers off. Â*Pretty simple to do and exposes everything except internal synchros.

What I found was a tremendous amount of aluminum shavings. Â*I also found that a Yahoo that replaced my input shaft bearings let an old roller get caught on my magnet. Â*Now, might this contamination have caused this? Â*I have no idea. Â* All bearings and teeth had normal wear. Â*

Now since, I have had no problems and my tranny shifts better than before (wouldn't you if you were clean). Â*I too run Mobile 1 and there is a difference from standard AFT as far as I can concerned.

My suggestion: drain your fluid and if you find aluminum shavings, take the tranny out and clean it. Â*

Tell me how it goes. Â*Maybe you will learn something where I did not.

Ben

Quote:

Originally Posted by Ponyhntr

No, you are thinking of the throwout bearing. Â*He is referring to the pilot bearing in the back of the crankshaft.

zupmanZ28-
I have had this same problem a couple of times. Â*In my case it turned out that the 3-4 slider assembly was over-traveling going into 4th gear. Â*What happens is the slider travels too far and the synchro keys pop out of their position and won't let the slider back the other way when you go to shift out of 4th. Â*That is why you have to slam on the shifter to force it back. Â*

The first time it happened to me, I sheared off the keys, and I thought I had a bent shift fork. Â*So I replaced the keys and installed a steel shift fork. Â*The tranny worked great for a couple months, then all of a sudden it happened again, but this time I could not get it out of 4th, even if I were to use my feet on the shifter (I didn't though).

So I took it apart again and found the same problem. Â*Not finding anything wrong with ANY of the parts, I put it back together (after freeing up 4th) and put it back in the car. Â*I then re-adjusted my Pro-5.0 shifter with an extra 1/2 turn on the stops, and it has worked flawless ever since. Â*I really don't know if adjusting the stops on my shifter is what fixed it, but it seems so. Â*

Let us know what you find.

These are exactly the same problems that I had since I got the car!!!!! Â*Im just amazed it survived like that for an entire year, so I give it credit!!

So NJFBOA Haters.... SHOVE IT!

2001orangess · 10-04-2005, 07:08 PM

well like i said before, damn that sucks...

Teds89IROC · 10-04-2005, 07:40 PM

you do realize if you EVER miss third again, even just once...you're toast!

~Ted

slasherbarb · 10-04-2005, 07:55 PM

so no whining if u miss third ever again...

Tsar · 10-04-2005, 08:26 PM

Quote:

Originally Posted by Teds89IROC

you do realize if you EVER miss third again, even just once...you're toast! Â*

Â*

Â*

~Ted

Mike · 10-04-2005, 09:17 PM

you can put the viper shift forks in there

they are stronger

2001orangess · 10-04-2005, 09:20 PM

if you had an auto, you can never mis shift

Savage_Messiah · 10-04-2005, 09:22 PM

Ian · 10-04-2005, 10:08 PM

I second the vote for viper forks

Tsar · 10-04-2005, 10:11 PM

Quote:

Originally Posted by 2001orangess

if you had an auto, you can never mis shift Â*

manuals are more fun!!!

Ian · 10-04-2005, 10:13 PM

Quote:

Originally Posted by Tsar

Quote:

Originally Posted by 2001orangess

if you had an auto, you can never mis shift Â*

manuals are more fun!!!

what the.....did you guys get lost looking for the auto trans thread that rj posted

qwikz28 · 10-04-2005, 10:15 PM

alex is your car in commision yet?

Ian · 10-04-2005, 10:16 PM

yeah alex, you have less than 24 hours.

2001orangess · 10-04-2005, 10:17 PM

Quote:

Originally Posted by Tsar

Quote:

Originally Posted by 2001orangess

if you had an auto, you can never mis shift Â*

manuals are more fun!!!

consistencey fool

and only the smart girls know that auto is better

take that

skorpion317 · 10-05-2005, 12:48 AM

Strangely enough, Alex, there's a technical service bulletin out for that problem that I checked out today. This is a pretty common problem, it seems.

if you ever miss third again after getting this fixed, you won't hear the end of it.

j0n · 10-05-2005, 09:13 AM

and dont worry i WILL be there when u miss third...and i will rub it in your face

2001orangess · 10-05-2005, 09:26 AM

Quote:

Originally Posted by j0n

and dont worry i WILL be there when u miss third...and i will rub it in your face

and if you still have your car, i'm pretty sure he'll be there when you break another tranny

JPiZZiJP · 10-05-2005, 12:57 PM

Quote:

Originally Posted by Teds89IROC

you do realize if you EVER miss third again, even just once...you're toast!

~Ted

BigAls87Z28 · 10-05-2005, 01:00 PM

Quote:

Originally Posted by 2001orangess

Quote:

Originally Posted by j0n

and dont worry i WILL be there when u miss third...and i will rub it in your face

and if you still have your car, i'm pretty sure he'll be there when you break another tranny Â*

ouch...