Has anyone seen this issue with a 6-speed transmission? Background first: before I put the car away last winter, I could tell there were serious issues with the tranny. Took it in this spring. Result was that the dealer replaced the cone and synchros on the 1-2,2-3 and replaced second gear. Issue now: This thing still shifts really hard from 1-2. (not the skip-shift). The harder the acceleration, the worse it gets. If I break the tires loose, It WILL NOT go into 2nd gear until it revs back down below about 2,000. There are no exceptions to this. Every single time the tires break on a launch, it will not shift to 2nd. A side question to this is how do I relay this to the dealer. I am guessing the reaction I'd get explaining the problem wouldn't get too nice of a response. Thanks to anyone who responds.

 

Is your clutch okay? Given what you're saying it sounds like the clutch is slipping at high RPMs. Is your clutch stock?

 

Yep, it is the stock clutch. The only reason I don't think it is the clutch is that if I don't break the tires loose, I can bring it up to redline and grab the shift fine. It still seems to go into 2nd harder than it should, but I don't have to let it rev back down.

 

TTT

 

It sounds like you still have a synchro problem. The purpose of the synchronizer (brass blocker ring) is to slow down the speed gear so the sleeve can engage the gear. When shifting, the speed gear is going faster (except in overdrive gears) than the synchro hub/sleeve which is attached to the mainshaft, the sleeve is splined to the hub which is splined to the mainshaft. When you pull the shifter, it moves the sleeve towards the speed gear, the blocker is in between the gear and the sleeve. As the sleeve moves towards the blocker, the blocker grabs the cone on the speed gear in a clutching action and slows it down. The pointed teeth on the blocker help direct the sleeve onto the teeth on the speed gear, allowing a smooth engagement. Now your gear is mechanically attached to the mainshaft via the sleeve and hub. If the blocker is not able to do it's job of slowing the gear down, you get a gear clash or hard engagement. The synchro assembly is made up of the sleeve and blocker ring. Just because the parts are new, doesn't mean they are good. A good rule of thumb is to place the blocker on the speed gear and you should have about .045" between the teeth on the blocker and the teeth on the speed gear. If not, either the blocker is too large or the gear cone is too small. Another problem is a bent shift fork, it may not be pushing the sleeve evenly towards the gear. This isn't too uncommon as the forks are aluminum and bend when abused. Hope this helps.