:talon: Loud 3rd gear noise/grinds 2nd & 3rd gears only, I'm stumped

[khart1684]

I need some help with this one... I rebuilt my transmission recently and have been driving it for only 500 hundred miles or so, from the install, second gear and third gear always grind when shifting , third gear is the worst of the two. When its in third gear it produces this bad noise that can be heard from the sidewalk and as the RPM's increase so does the noise. I can't down shift to 3rd or second gear because it will just grind. Even @ a stop I will press the clutch and shift to second and it will mildly grind and then go into gear, I'll take it out of second and release the clutch, then press the clutch and try to shift into 3rd , it grinds worst then the second gear. its as if the clutch wont work for the 2nd and 3rd gears its a 91 talon AWD

 

[Cs4g63]

Did you have the same grinding issues before you rebuilt the transmission?
Its possible that you need to bleed the clutch system more, and its also possible that your pedal assembly is worn out and doesnt work completely. Of course it could also be something wrong in the trans but not likely since you just had it rebuilt.

 

[CrazyM]

I rebuilt my transmission recently:

Just wondering....did YOU rebuild your transmission? or a say certified shop rebuild it? If you did, have you done something of the likes before? did you miss a small step? piece? Not trying to bring you down just getting info kind of thing

 

[JackM]

If you are grinding that bad, you have dead synchros. Synchros are damaged by an improperly adjusted clutch 99% of the time, so you may want to be sure that is right first. If you just blindly replaced the blocker rings, like many beginners do, that is only a small part of the whole synchro assembly. You have the hub to check for thrust and chatter wear, the slider to check for chatter and tooth damage, the springs, keys, wear on the forks, and the dogs on the gear. If any of those parts are not perfect, it will grind even with new rings. Sounds like 3rd might have damaged or missing needle bearings too, or you did the bearing preloads wrong.

Jack
www.jackstransmissions.com

 

[khart1684]

Yes I rebuilt it myself, Its my 1st complete rebuild but I have matched good gear rails etc. together several time and never had problem with them. I noticed during the case assembly that one of the gear teeth on the intermediate shaft had a small chip on the top of it... NO grinding before the rebuild. Never did check the bearings preload. ANd as for me missing a small piece, no I know I didn't, I even bought that tiny little seal that goes in the top(towards rear of TRans case) of input shaft. Did everything by the book(all data/dealer print out), except preload check. I inspected and replaced all worn parts as needed during the rebuild

 

[EZ91Talon]

Did you refill with a lubricant that is compatible with yellow metals? I got mine back from the shop way back when and found that it got progressively noisier and more dificult to shift. I don't know what they used, but I drained and filled with Pennzoil Synchromesh and the difference was miraculous.

 

[khart1684]

Just used same gear dope 80-9ow.

 

[EZ91Talon]

If you do some searching through the forums, you will find that people are recommending all different kinds of lubes; apparently our trannies are very picky, and they are NOT all happy with the same stuff (like TRE's really seem not to like the SM). I use the Synchromesh and it made a BIG difference (like night and day) over the gear lube the shop filled mine with. Defiant and Shep also reccomend it, but some people are mixing it and some are saying it's crap. I would recommend trying it at least, especially if you're having trouble with what you've got. Good luck.

 

[khart1684]

Its worth a shot... just that its third gear that makes the noise and a sorta loud one @ that.