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second gear problems

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Old 07-12-2012, 08:45 PM
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tasman
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Default second gear problems

07 GT3 RS. 8700 miles. No mods (except sharkwerks bypass). minimal tracking. Have had the car since april but over the last few weeks about 15% of the time can not get it into second gear. Will grind. Rev matching, redepressing clutch, nothing helps. Does it seemingly only when warmed up. Rest of the time works fine. Seems not to be affecting other gears. Have done search but still need some help. Syncros, clutch going bad. THanks for your input
Old 07-12-2012, 08:46 PM
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Izzone
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Originally Posted by tasman
07 GT3 RS. 8700 miles. No mods (except sharkwerks bypass). minimal tracking. Have had the car since april but over the last few weeks about 15% of the time can not get it into second gear. Will grind. Rev matching, redepressing clutch, nothing helps. Does it seemingly only when warmed up. Rest of the time works fine. Seems not to be affecting other gears. Have done search but still need some help. Syncros, clutch going bad. THanks for your input
New transmission

Been there
Old 07-12-2012, 08:51 PM
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tasman
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Originally Posted by Izzone
New transmission

Been there
Not sure that's what I wanted to hear but I suppose it is what it is. Do you know what was wrong with yours? Guess I need a trip to dealer. Thanks for your help.
Old 07-12-2012, 09:55 PM
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P.J.S.
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Weak pressure plate?
Synchros?
Old 07-12-2012, 10:07 PM
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CRex
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Clutch or PP problems affect all gears.

If you're second-gear specific you're likely looking at a gearbox rebuild. Ain't as bad as it sounds, been there before. While you're at it, you can look at the gear ratios (1st & 2nd being integral to the input shaft) or the R&P. Steel synchros too. It ain't all bad.
Old 07-12-2012, 10:10 PM
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P.J.S.
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Good point
Old 07-12-2012, 10:51 PM
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tasman
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Originally Posted by CRex
Clutch or PP problems affect all gears.

If you're second-gear specific you're likely looking at a gearbox rebuild. Ain't as bad as it sounds, been there before. While you're at it, you can look at the gear ratios (1st & 2nd being integral to the input shaft) or the R&P. Steel synchros too. It ain't all bad.
Why would a car need a gearbox rebuild after less than 9000 easy miles? If that is the case so much for reliability! IF it does need a rebuild what should I do while it is open? Thanks for all the replies!
Old 07-13-2012, 01:13 AM
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P.J.S.
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Likely not a full rebuild

Ping north van
He just finished going through this and symptoms were the same

Things to look at "while in there"
Is diff good?
Possible ring and pinion swap or change of some gear ratios or both?
Synchros to steel?
Cup cables?
Etc
Old 07-13-2012, 01:26 AM
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NorthVan
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As per PJ, I had my synchro's on 2 and 3 replaced with cup car parts...problem solved. You don't need to rebuild, it is the shops way of getting unnecessary work done to your transmission.

You can confirm this with Matt at GT
Old 07-13-2012, 06:16 AM
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GT3 gearbox is designed to be opened up and little bits services and replaced.

Your problem sounds daunting. Its not.
Old 07-13-2012, 08:55 AM
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tasman
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bmardini, Northvan, PJS996GT3, Thanks for the input. Still under CPO so will start with dealer. Hopefully will be as simple as new synchros. Still frustrating with a low mileage car. Trying to get it ready for tracking it some more. Thanks again. Rennlist is awesome for this type of stuff.
Old 07-13-2012, 09:31 AM
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NorthVan
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Originally Posted by tasman
bmardini, Northvan, PJS996GT3, Thanks for the input. Still under CPO so will start with dealer. Hopefully will be as simple as new synchros. Still frustrating with a low mileage car. Trying to get it ready for tracking it some more. Thanks again. Rennlist is awesome for this type of stuff.
The only problem with OEM synchro's is they era made of brass, and will wear. I elected to spend more money are get the steel cup car synchro's installed. Good luck with your repair.
Old 07-13-2012, 09:36 AM
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You're in luck with your CPO. I had same issue on my 996 turbo while under CPO. Dealer repaired transmission at no cost. I paid to upgrade the syncos to steel. Never had the problem again.
Old 07-13-2012, 12:36 PM
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^ op, do this
Old 07-13-2012, 12:43 PM
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Originally Posted by PJS996GT3
^ op, do this
That's the plan if it is the synchros and the dealer will fix. Once again thanks to everyone.


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