bad synchro's?
3rd Gear Member
Joined: May 2006
Posts: 811
From:
RE: bad synchro's?
I am having the same problem... 1st to 2nd at high rpms always grinds... its so annoying, and probably gonna cost alot to fix.. but there is this camaro ss im looking at. 
anyone know how to fix this?
anyone know how to fix this?
6th Gear Member
Joined: Sep 2006
Posts: 11,278
From: Gainesville, FL
RE: bad synchro's?
The transmission isn't jumping around under the car.
There's no telling what you did when you installed your torque limiters. all the torque limiters do is prevent the transission from turning to one side.
There's no telling what you did when you installed your torque limiters. all the torque limiters do is prevent the transission from turning to one side.
ORIGINAL: ohnoesaz
Just think about it... Why use a 2 piece driveshaft, or let the tranny jump around? Ford doesn't do that randomly. Its designed that way. Same with the weight of underdrive pulleys. These items are meant to dampen things.
Have I put a video under the car and verified the tranny jumps around alot? Of course not. But the fact that CHE invented the torque limiters tells you enough right there. After I installed them my entire car would shake because the tranny shakes so violently and now it was being held to the car.
If you hold the tranny tight then something has to give, plain and simple. Components inside the tranny will take all of the stress now.
I dont think hes screwed, he can uninstall them like I did and stop more damage from happening. And I dont guarantee everyone will run into problems. But I know what happened to me, and Im pretty sure its whats happening to him, so people can take that for what its worth....
Just think about it... Why use a 2 piece driveshaft, or let the tranny jump around? Ford doesn't do that randomly. Its designed that way. Same with the weight of underdrive pulleys. These items are meant to dampen things.
Have I put a video under the car and verified the tranny jumps around alot? Of course not. But the fact that CHE invented the torque limiters tells you enough right there. After I installed them my entire car would shake because the tranny shakes so violently and now it was being held to the car.
If you hold the tranny tight then something has to give, plain and simple. Components inside the tranny will take all of the stress now.
I dont think hes screwed, he can uninstall them like I did and stop more damage from happening. And I dont guarantee everyone will run into problems. But I know what happened to me, and Im pretty sure its whats happening to him, so people can take that for what its worth....
5th Gear Member
Joined: Mar 2007
Posts: 2,033
From:
RE: bad synchro's?
ORIGINAL: adidasUNT8
crap....thanks acrokat.... thats what i was afraid of.....if i have a B&M shifter and 4:10 gears would it void the warranty on the synchro replacement?
crap....thanks acrokat.... thats what i was afraid of.....if i have a B&M shifter and 4:10 gears would it void the warranty on the synchro replacement?
Chances are if you don't say anything about the gears, they'll never know. They'll see the shifter though, and I'm thinking they'd give you hell about it.
4th Gear Member
Joined: Jul 2007
Posts: 1,852
From: East Moline, IL
RE: bad synchro's?
Torque limiters are just like stiffer motor mounts. They keep the engine from torqueing. The reason Ford doesn't do this from the factory is NVH. Us modders are willing to live with NVH, and will do these mods. I don't see how installing the torque limiters, or motor mounts for that matter, could cause wear and tear. Just more NVH. Your logic seems to be that Ford doesn't do it so there must be a reason. Knowing Ford as well as I do, that seems unlikely. Ford does things like this for two reasons. To keep costs down, and to keep cabin noise down. The first being the most important.
2nd Gear Member
Joined: Feb 2006
Posts: 374
From:
RE: bad synchro's?
I just started having this problem today myself. I grind going into second about 50% of the time shifting around 5750K or higher. I never had this problem before, and I don't know why it would occur suddenly.
I do have the CHE torque limiters, but I've had them installed for over 6 months. I think I will take them out and see how that goes.
If my synchro is going bad, how much time is involved with that kind of work?Is there any other way to tell if it is my syncro, orshift fork, or something else? Maybe I need a clutch adjustment?
I do have the CHE torque limiters, but I've had them installed for over 6 months. I think I will take them out and see how that goes.
If my synchro is going bad, how much time is involved with that kind of work?Is there any other way to tell if it is my syncro, orshift fork, or something else? Maybe I need a clutch adjustment?
2nd Gear Member
Joined: Apr 2007
Posts: 413
From: IL
RE: bad synchro's?
sounds like a synchro to me... don't forget these trannys are not the strongest things around... add some mods and lock them in with poly bushings and braces and all you're doing is making sure that all the torque is sent right through the trans...
DarkFireGT is right in a sense that they keep things from torqueing but torqueing does help dampen shock... the shock of a 5k+ powershift is now going full force into your gears instead of being partially dampened by whimpy black bushings... All the mods that we do to get every last bit of power to the wheels will eventually take a toll on the weaker links in the drivetrain... synchros are a very weak link, especially in a very weak trans...
DarkFireGT is right in a sense that they keep things from torqueing but torqueing does help dampen shock... the shock of a 5k+ powershift is now going full force into your gears instead of being partially dampened by whimpy black bushings... All the mods that we do to get every last bit of power to the wheels will eventually take a toll on the weaker links in the drivetrain... synchros are a very weak link, especially in a very weak trans...
4th Gear Member
Joined: Jul 2007
Posts: 1,852
From: East Moline, IL
RE: bad synchro's?
ORIGINAL: ajaibr
sounds like a synchro to me... don't forget these trannys are not the strongest things around... add some mods and lock them in with poly bushings and braces and all you're doing is making sure that all the torque is sent right through the trans...
DarkFireGT is right in a sense that they keep things from torqueing but torqueing does help dampen shock... the shock of a 5k+ powershift is now going full force into your gears instead of being partially dampened by whimpy black bushings... All the mods that we do to get every last bit of power to the wheels will eventually take a toll on the weaker links in the drivetrain... synchros are a very weak link, especially in a very weak trans...
sounds like a synchro to me... don't forget these trannys are not the strongest things around... add some mods and lock them in with poly bushings and braces and all you're doing is making sure that all the torque is sent right through the trans...
DarkFireGT is right in a sense that they keep things from torqueing but torqueing does help dampen shock... the shock of a 5k+ powershift is now going full force into your gears instead of being partially dampened by whimpy black bushings... All the mods that we do to get every last bit of power to the wheels will eventually take a toll on the weaker links in the drivetrain... synchros are a very weak link, especially in a very weak trans...
2nd Gear Member
Joined: Feb 2006
Posts: 374
From:
RE: bad synchro's?
TLs or no, Ijust wantto figure out what I need to do to actually diagnose the problem. Or am I really stuck with bringing it in and expecting a few days downtime at the shop?
On the way home today I did two more WOT shifts at 6000k rpm, and I went into second no grinding, but it seemed to require more muscle than usual. I don't ever powershift, I still granny shift at high rpm, precisely because I didn't want to cause this kind of problem.
Is it true that this tranny has internal stop bolts? I've read that, but never been able to confirm or deny that statment officially.
I have also read that replacing the tranny fluid with a synthetic has worked.
I am also thinking about going back to the stock shifter.
On the way home today I did two more WOT shifts at 6000k rpm, and I went into second no grinding, but it seemed to require more muscle than usual. I don't ever powershift, I still granny shift at high rpm, precisely because I didn't want to cause this kind of problem.
Is it true that this tranny has internal stop bolts? I've read that, but never been able to confirm or deny that statment officially.
I have also read that replacing the tranny fluid with a synthetic has worked.
I am also thinking about going back to the stock shifter.