Porsche 911UK Forum

Welcome to the @Porsche911UK website. Register a free account today to become a member! Sign up is quick and easy, then you can view, participate in topics and posts across the site that covers all things Porsche.

Already registered and looking to recovery your account, select 'login in' and then the 'forget your password' option.

Popping out of second gear

cheshire911 said:
Glad to hear you have a solution. I have MIke at S&C on my door step and often pop round for a coffee and chat and see the curios on the ramps as well as whats in for gearbox rebuild, which is why I know he does a lot of this work and knows his way round the intricacies and the remarkable things people have attempted as bodge ups - truly amazing...

I cant speak for your chosen repairer, but Mike does mention that he makes a series of modifications which he does not disclose the details of that make the solution a lasting solution. I believe him and am of the view this is not marketing hype.

Clearly, you have embarked on the best solution - a full gearbox strip and rebuild. It is the only solution because the dog teeth have become chipped on 2nd gear synchro or rounded off thus reducing their contact surface (normal being only a mm or so for the bite surface) and the 2nd gear synchros on a 996 turbo are different shape to that on the other gears which makes that gear particularly prone to damage.

Anybody buying a Turbo that has had a G-Box detent spring fitted by a prior owner is just waiting for a much bigger bill down the road and I do hear tales anecdotally of people fitting it prior to selling it.

Glad to hear that you are sorted. This is a problem that is irrespective of mileage. Mike sees it on cars with less than 30k miles as well as higher mileage examples.

Managed to get up to see Matt on Friday and was more than impressed with the set-up at Fearnsport. They do all rebuilds in-house and only seem to deal with GT2-3 and Turbos, they do loads for Motorsport etc as well so I'm very happy with my choice of garage. Looking forward to getting it back now!
 
Can confirm Fearnsport do a cracking job at a good price. Car back and just completed 500 mile trip to Devon and back with no issues. Happy days!
 
Rosselder83 said:
Are you happy o share the price? Just so I know what I may have to budget for in the future?

For just the pop out solution I'd guess £3500 - £4500 inc VAT plus any other parts that need replacing whilst 'in there' excluding crown whefl and pinion on high mileage examples and based on labour rate of £85 + VAT
 
One of the business success stories in the last couple of decades has been with small businesses specialising in niche markets and Porsche engines and gearboxes are no exception - with those doing most of the business able to offer their combined experience and familiarity to make the result reliable and affordable, stocking the parts needed etc.

We originally found that in most gearboxes the 2nd gear engagement position was slightly out. The engagement doesn't result in the gear lever pushing the sliding gear fully into its final position but stops short and allows the pawl springs to push it finally into gear making it feel more slick to operate , but as these springs slacken eventually some don't really pop out of gear but actually never slide in far enough to be fully engaged and pop into neutral again with the slight out of alignment we found always in 2nd gear and resulting in it being the first to fail. This we could test if a car just started to do it by slamming the gear into 2nd with high speed and force and it then would stay in OK as the extra force pushed it far enough to work with the weaker springs to go fully into engagement.

We found a way to fix it if the dogs had not worn too much but got so busy with engines we decided to utilise those that make it a specialist job and would recommend anyone else doing the same (as largely advised above with a choice of recommended providers).


The more anyone does of anything the better they inevitably get at it.

Baz
 

New Threads

Forum statistics

Threads
124,354
Messages
1,439,460
Members
48,712
Latest member
golfguy11800
Back
Top