Hi all, and thank you very much for your input. The problem is getting noticably worse. If I hold my hand on the shifter while I let the clutch out (keeping positive pressure on it to hold it in first), it will make the loud BANG noise like it jumped out of gear BUT it is still in gear because I was holding it in there. Weird huh? The only way to get it to NOT pop out of gear or make the loud bang is to cycle it in and out of first several times. If you are waiting at a light (or whatever) with it in neutral and the clutch out, then quickly just put it in gear and let the clutch out, it will pop out almost every time. I think I may have to bite the bullet and just bring it into the dealer. I am going to try and adjust the clutch first and change the gear lube, but after that I'm afraid I'm out of options. No good...
Unauthorized Gear Change?
- Thread starter dkrace67
- Start date
If the shifter linkage is out of adjustment or bent this can happen.
It could also be worn dog teeth for 4th gear (not good).
"When you make a 0.001" change at the shift knob and maintain pressure (like resting your hand on the shift knob while driving), the required 0.004"-0.006" gap is closed, preventing the lubricant to ride between the gear and shifter rail. This gap allows for the transmission lubricant to acts as a barrier so that the shifter rail and gear are not directly touching, causing premature wearing of the gear (not syncros), shifter rail, or both."
I have a problem with this. The pressure that the drive train (under load) applies to the gear and rail is MUCH greater than a few oz. of hand pressure. How can the hand pressure create more wear than normal transmission running forces?
It could also be worn dog teeth for 4th gear (not good).
"When you make a 0.001" change at the shift knob and maintain pressure (like resting your hand on the shift knob while driving), the required 0.004"-0.006" gap is closed, preventing the lubricant to ride between the gear and shifter rail. This gap allows for the transmission lubricant to acts as a barrier so that the shifter rail and gear are not directly touching, causing premature wearing of the gear (not syncros), shifter rail, or both."
I have a problem with this. The pressure that the drive train (under load) applies to the gear and rail is MUCH greater than a few oz. of hand pressure. How can the hand pressure create more wear than normal transmission running forces?
funny how when i was driving an auto, i'd rest my hand on the shifter, pretending i was driving a stick.
now that i actually have a manual, it's ironic, i hardly ever rest my hand on the knob. esp once i get to 4th or 5th gear. it just makes logical sense. shifter movement has direct affect on the gears, moving it around in one direction or another while two different parts are perfectly fit and moving together would only results in wear and tare!
now that i actually have a manual, it's ironic, i hardly ever rest my hand on the knob. esp once i get to 4th or 5th gear. it just makes logical sense. shifter movement has direct affect on the gears, moving it around in one direction or another while two different parts are perfectly fit and moving together would only results in wear and tare!
yes, it will loosen up the linkage a bit also. these ZF boxes aren't cheap, drive in mustang mode all you want. my trans builder just reminded me again yesterday that he will not work on my trans. put a clutch in, no problem, but no trans work. they are a major PITA and shops charge accordingly. mines way out of warranty and i'm going to be very nice to it!
Well, I finally broke down and brought my car into the dealer...and, pretty much as I expected, they say "tranny is shot, replace it" They are also telling me that rebuilds are pretty much out of the question because of part availability. Does anyone have any ideas on the subject? The shop floor supervisor (i.e. - Head Wrench) said that the dog ears are bad, the levers that hold it into first. Well, I want to try and rebuild it myself (I'm not scared) but does anyone know of places to get parts, maybe even know of a place where I can get it rebuilt or buy another one? There were several other things wrong as well, so I have to buy some parts. Is there an Online (or otherwise) store where I can get parts (less expensive than the stealership?). Any and all help is appreciated.
DK
DK
Justin (jrt67ss350) has posted before that these trannies are not easy to work on. From what I have been told and read, they use a lot of pressed in assemblies and special tools that make repairs difficult. That would be required to replace the dogs.
Frolf mentioned above that the guideshaft can be the problem, that might be a bit easier to repair.
The Shop Floor Supervisor said "the dog ears are bad, the levers that hold it into first." From what I have seen, dog ears are more like studs or teeth, not levers. I'm not sure what he was getting at (levers), maybe just different words for the same thing?
There are some cases where this problem was a worn shifter fork. It pops out of gear because the shifter fork is worn and does not push the dog teeth into a fully engaged position. I think this would be the easiest of all the repairs as you don't have to work on any rotating parts.
Frolf mentioned above that the guideshaft can be the problem, that might be a bit easier to repair.
The Shop Floor Supervisor said "the dog ears are bad, the levers that hold it into first." From what I have seen, dog ears are more like studs or teeth, not levers. I'm not sure what he was getting at (levers), maybe just different words for the same thing?
There are some cases where this problem was a worn shifter fork. It pops out of gear because the shifter fork is worn and does not push the dog teeth into a fully engaged position. I think this would be the easiest of all the repairs as you don't have to work on any rotating parts.
my trans builder won't even work on my Z3 trans. he says a clutch, no problem, but i'm not working on the trans! he says they're a bitch. mine was swapped under warranty for popping out of first gear, no problems since. i think your "head wrench" is just talking crap about the "dogears"? there is a well known part that fails, something to to do with a slider on a rail. lots of posts about it, shoulda been a recall. i think there is an upgraded replacement part.