Help gearbox locked up

You need fatbillybob-fast! I noted you are in CA, and he can help you. This is for all those guys in that last thread about burn outs.

 

Absolutely!!! FBB and Ernie are the best, maybe even Bruce and Oz could show up to keep the beer and food flowing.

 

Ahhhhhhhh crap!! Sounds nasty mate!!
With the car in neutral, engine off, handbrake off, can you roll or push the car at all?
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Check the clutch shaft. If you turn it by hand, how much play does it have before it engages the lower shaft?

Yes, one burnout could have finished her off.... but hopefully that's not the problem. What year is the car? Here are pictures of the infamous (and expensive) thick splined clutch shaft that was millimeters from "kablammo" in my car.
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Before tearing the transmission apart, I think I would disconnect the shifter cables and make sure that the 'box is actually in neutral. It MAY be possible that one of the cables has stretched, or popped off the linkage levers, or something like that, and the box is stuck partway in gear. I think I remember a thread a long, long time ago where someone had a nut back off from one of the cable attachment points and caused problems. Were you "speed shifting" while doing the burnout?

 

Burnout? I thought that's what the Corvette's were good for?

 

Like he said. No big parts in it, probably just "between gears"

 

+1 I have seen other gear boxes do similar things (not mine ). Sometimes the gear selector either braeks or gets locked in when one of the shifter shafts slides into gear and the selector did not go with it. Then the selector cannot access the slot in the shaft to bring it out of gear.

You may need another person to move the shifter while you watch the linkage move. At least you can find out if the problem is on the 'outside'.

How does the shifter feel? Does it go freely into all the gates?

 

Wasn't there a Mondial owner who had something similar happen to his car that just turned out to be a gear selection "fork" that popped out of the correct alignment?

I was thinking that he did something with the gearshift and the tranny popped the fork back into the correct position on its own. Complete auto-cockpit fix!

Might not be the same thing, but here's the thread with his fix: http://www.ferrarichat.com/forum/showthread.php?p=136858112#post136858112

 

Yeah..... I bet its something like that......

 

Oh man, are you messing with me on a Friday?!

 

Dude,..... I was NOT sarcastic !!! What you said, sounds very likely !!

BTW, I forgot its friday!!!!!

 

Hang on "a tick" here, juuuuuust in case.

Are you saying that the smaller diameter shaft with the finer splines won't move (this is attached to the engine, and shouldn't move unless the engine is turning) or are you saying that the larger diameter shaft with the coarser splines (attached to the clutch) won't move? That shaft SHOULD rotate when the gearbox is in neutral. The smaller shaft runs through the middle of the larger shaft, of course.

Still hoping that your tranny is OK.

 

Uh oh?

If I'm understanding this correct, to me it sounds like you have something wedged between the ring and pinion gear (aka bevel gear). If so, your box will have to come apart. Get the car in the air and remove the inspection plate on the bottom. You will then be able to see up inside the gear box. Pull the cover and let us know what you find.

I hope that damn oil pump bearing hasn't struck again.

 

With that sort of "injury" I'd be concerned about the gear on the other end of that shaft and the one it interfaces with.

When you replace the bearing flange and the bearing, ensure you upgrade to the Hill Engineering items - similar price to OEM but vastly superior. They tend not to self destruct too.

Keep us all posted, preferably with pics.... I just hope it's not too ugly on the other side.

Very nice car BTW. Love the 360 wheels...

 

Shweeooo

Let's just hope, it only the bearing.

 

If you had to have a bearing lock up, the throwout/slave would be a whole lot better than most any other!

At least it's external to the tranny box.

 

I too like the 360 wheels! NICE!

 

So perhaps ring nut #14 backed off on the end of clutch shaft #2, allowing gear #1 to go out of alignment on the shaft and lock up against the corresponding gear inside the box? Then once cover #19 was removed it allowed gear #1 to "unlock" and rotate?
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If #32 seizes internally, would item 2 be able to turn?