5 speed Tranny grinds
 

I need some insite as to what the issue is that im having with my boxster, Its a 97 boxster 5 speed with 108k miles.... :)

Issue im having is that i hear a grind noise ONLY when im changing from 1st into 2nd gear while making a left or right turn. I make the gear change in the 3500 - 4000rpm range and as the shifter is entering 2nd gear, i hear the grind. Again, this ONLY grinds while going into 2nd gear while turning!

In Addition: The only way the tranny wont grind while shifting into 2nd during a turn is if i wait for the RPM's to drop to idle before shifting into 2nd.

Sounds like a worn synchro. 100K miles on the original synchros would be impressive. Heck, even half that, if the car was driven aggessively in its life would be impressive to me. It won't get better by itself. only worse.

The synchro does just that.. synchronizes two moving parts to make them mesh without noise. You could continue to wear out the syncro, or perhaps start "double de-clutching (shifting first to neutral, let out the clutch, then put in the clutch and shift to 2nd). Double de-clutching is how we used to do it in the "old days" ;)

The "turning" could also be an indication of transmission or motor mounts that need replacing. As they wear, the alignment of these two components changes. Cornering forces make that alignment even worse.

Hi,

Tranny/Engine Mounts...

Happy Motoring!... Jim'99

Could be the shift lever has come out of alignment. It's not a "common" thing to happen, but would cause the problems you listed. I'd leave it for last in the check list since other mentioned items are easier to check.

Thanks people, ill start looking into engine and tranny mounts.