mini zilo
15+ Year Contributor
- 783
- 16
- Jul 17, 2006
-
Chicago,
Illinois
I posted this on another board but didnt get any answers so I am copy pasting it to here;
I was driving around all day yesterday, everything was completely fine. The transmission was rebuilt a few months ago, but only has about 1,000 miles on it. The parts that were replaced in the rebuild were:
All synchros
1-2 hub and slider
3-4 hub and slider
new 2nd gear
new 3rd gear
new 4th gear
I run Redline MT-90 with a touch of heavy shock-proof in it. If I had to take my best guess, the car is somewhere around 350 whp.
I was at a stop light, and when it turned green I rode out first and then went WOT to 6750 rpms. I shifted into second no problems (this was FULLY lifting off the throttle, and fully pushing the clutch to the floor. I took 2nd gear up to 6750 rpms, and then fully pressed the clutch, and shifted intro 3rd. As soon as I moved the shifter, I felt a grinding in shifter, and then it stopped and just fell into the 3rd gear position, but 3rd and 4th were gone. I drove home using 1st, 2nd, and 5th.
Now, I was pretty certain that I had broken the synchro slider. Well, I was right.
I took the transmission out today, and my 3rd-4th slider is broken into peices, the shift fork also broke, the hub has serious wear, the center diff ring gear is damaged, and that's about all I have noticed so far.
Now when the transmission was rebuilt, I did not replace the 3-4 fork. Is this a possibility of why this happened?
I don't understand how a ~350 hp car can break a rebuilt trans with only 1000 miles on it, while fully lifting to shift, and fully depressing the clutch, and only shifting at 6700 rpms!!!!
I wasn't even ripping the shifter, I was just pushing it! This is ridiculous.
What reasons could cause the transmission to break this easily? The only thing I can think of is it was rebuilt by a local transmission shop, and they might not have done the best job. But I can't think of any other reason. Why would this happen? Thanks!
Looks like it's time to call shep. Which is both and
I was driving around all day yesterday, everything was completely fine. The transmission was rebuilt a few months ago, but only has about 1,000 miles on it. The parts that were replaced in the rebuild were:
All synchros
1-2 hub and slider
3-4 hub and slider
new 2nd gear
new 3rd gear
new 4th gear
I run Redline MT-90 with a touch of heavy shock-proof in it. If I had to take my best guess, the car is somewhere around 350 whp.
I was at a stop light, and when it turned green I rode out first and then went WOT to 6750 rpms. I shifted into second no problems (this was FULLY lifting off the throttle, and fully pushing the clutch to the floor. I took 2nd gear up to 6750 rpms, and then fully pressed the clutch, and shifted intro 3rd. As soon as I moved the shifter, I felt a grinding in shifter, and then it stopped and just fell into the 3rd gear position, but 3rd and 4th were gone. I drove home using 1st, 2nd, and 5th.
Now, I was pretty certain that I had broken the synchro slider. Well, I was right.
I took the transmission out today, and my 3rd-4th slider is broken into peices, the shift fork also broke, the hub has serious wear, the center diff ring gear is damaged, and that's about all I have noticed so far.
Now when the transmission was rebuilt, I did not replace the 3-4 fork. Is this a possibility of why this happened?
I don't understand how a ~350 hp car can break a rebuilt trans with only 1000 miles on it, while fully lifting to shift, and fully depressing the clutch, and only shifting at 6700 rpms!!!!
I wasn't even ripping the shifter, I was just pushing it! This is ridiculous.
What reasons could cause the transmission to break this easily? The only thing I can think of is it was rebuilt by a local transmission shop, and they might not have done the best job. But I can't think of any other reason. Why would this happen? Thanks!
Looks like it's time to call shep. Which is both and