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Help! Gear selection problem and stranded

jboult

New member
All,

Driving the car a couple of days ago I noticed that selecting 2nd gear had become a little notchy, and that it would occasionally pop out of 4th. I have the car booked in to my specialist to be looked at, but the situation has deteriorated rapidly this morning.

I now have trouble selecting any gear, and reverse is impossible - unfortunate given the way I'm parked! The gear stick itself feels like it is snagging and catching all the time (even when trying to move across the neutral plane), and if I do get a gear it's not a 'positive' engagement. Once in gear it drives Ok with no clutch slippage.

I guess I'm looking at low-loading it to the garage, but just in case has anyone any ideas that might help?! I'm assuming it could range from a simple gear linkage problem, all the way to a major gear box issue.

Cheers/John
 
Believe it could just be a failing slave cylinder or master cylinder on the clutch. Same thing happened on my Carrera GT (924)
 
Thanks for the quick reply. I had the slave done a couple of years ago when that failed - no guarantee, but I guess it's more likely the master if anything.

Cheers/John
 
Exactly same symptons as mine was - was slave cylinder and pin hole leak in hydraulic hose not too expensive !!!!
 
I hope you're all right - AA man says "gearbox gone", Porsche gearbox specialist on phone says "something in the gearbox gone, but let me have a look, you might be lucky". Low loading it over there tomorrow. Hoping for the best and fearing the worst.

I thought these engines and gearboxes were meant to be bomb proof?!

Cheers/John
 
Could just be the linkage. Impossible to tell without having it inspected though.

Good Luck!
 
If it was mine I would drain the gearbox oil and use a magnet to collect any swarf etc before deciding to go further. I think mine has a magnetic drain plug installed which makes it easier. Always check you can undo the refill plug before draining !!!
 
All,

Quick update - definitely a gearbox out situation (ouch!). Will post the results, just in case anyone is unfortunate enough to come across the same issue.

Cheers/John
 
All,

Just had an update from the chap looking at the car. He says he's never seen it before, or even heard of it happening, but the selector link inside the gearbox had snapped in 3 places. There doesn't appear to be any other damage, and a new part is on its way, so less expensive than feared (so far), although of course still fairly pricey. Once fitted he'll check the box over again, but thinks it should be Ok. He has no idea why it's happened, though, so if anyone has any ideas then I'd be interested!

Given the engine is out I'm going to go ahead and have a few other bits and pieces done (oil leaks from the rockers, through bolt, etc.). Basically a top end rebuild and then new suspension to freshen things up. Only 120k on the clock and I intend to keep it for quite a while, so alhough painful in one go it should transform the car.

It's finally time to make my mind up on the suspension options. Gert over at Carnewal is suggesting M030/Bilstein HDs. I'm a little worried that set up could be too stiff on a Targa, especially with the state of the roads around here, and am leaning to the M033 option. Decisions, decisions...

Cheers/John
 
Got mine from Gert but to keep the suspension a little softer went with M033/HD option this was at Gerts suggestion and been really happy with this set-up. Lowered the car about 20mm when I fitted them.

Andy B.
 
Andy,

Well, the list keeps growing, but yes, the head is coming off for a rebuild. I've probably posted this before, but I'm never, never again buying a project Porsche...

The problem is not the unreliability of the 993 per se, as to be fair it usually just suffers from niggling little faults. It's actually more my approach to things and the desire to get everything right, even when it would be far more practical to buy a better example in the first place. In fact, I recently worked out that with what I paid for this car, plus everything I've already spent (a lot) and everything I'm about to, I could have been sitting in a very nice 993 TT example. My wife keeps pointing that out as well...!

The next lot should see the last of the major items, and includes:

- gearbox repair
- clutch
- suspension (still can't make my mind up between M030 and M033! I'm a 'sporty' driver, but still can't convince myself that M030+Targa+terrible roads will make for a pleasant experience)
- top end rebuild
- driver's door check strap

After that I may tidy up the interior a little as it's showing its age, but anything else will be nitpicking. And no, at the end of it I don't expect it to be worth a penny more than I originally paid, but at least I'll be happy... I hope.

Cheers/John
 
I am the same as you John, spent a fortune on bits to get the perfect car and still working towards more. Trouble is these days every time I take it out more stone chips on the front so it is an endless battle.

Just glad I can take on most of the jobs myself, the only one I wouldn't fancy is a gearbox rebuild have rebuilt 5 speed Ford boxes and they were tricky enough !

Andy.
 
If your wife keeps mentioning that you could have had a very nice TT then she can't argue much if you agree with her when you come to renew the car :)
 
Johnny,

I tried that tack, but she says with what I'm now putting into the car I'll need to be buried in it...

First bit of luck though. I thought the check strap needed doing (driver's door clicking really badly, and getting worse). Chap doing the car took one look at it, grabbed a socket and reattached it properly to the door side where it had come loose. I never even thought to look. I might feel stupid, but my pocket feels heavier!

Finally saw the bit that had broken in the gearbox. Basically the long pin that the gear lever mechanism attaches to that moves the selectors. Sheared off at both ends somehow, which is a bit of a worry. Anyway, part is on the way, and may look at the sync rings too (particularly for 2nd which was always a little notchy, although there doesn't seem to be any damage or wear).

Anyhow...

Back on the suspension. I hear that Porsche are doing some kind of deal on the M030 suspension kit. Does anyone have any details, or know the difference between that kit and the one from Carnewal?

Cheers/John
 
All,

Well, late October and I finally have my car back. Five months later than originally planned, but I kept adding to the list of jobs and we had a few surprises along the way. Anyway, the final reckoning:

- Engine rebuild (top-end, including valve guides, uprated Dilivar studs, timing chains, etc.)
- Gearbox repair and partial rebuild (including 2nd gear synchro)
- Uprated differential (changed from standard to a slippy diff - existing unit was smashed and I thought well, if it needs replacing anyway...)
- New clutch
- New suspension (M033 with Bilstein HDs from Gert)
- New ignition final stage unit
- New belts, plugs, filters etc. - basically all full service items and then some
- Re-bushed A-arms (after market bushes from Gert)
- Full geometry set up
- Door check strap mounting (door side, thankfully)
- some other stuff I've forgotten (suspension top mounts, etc.)
- Targa roof realignment

Was it worth it?

Well, the bad news is the cost - isn't it always with these things? I still can't quite get my head around how Porsche can charge what they do for some parts. The answer being 'because we keep paying it', I suppose.

The good news is that it's not only is the car better than it was before the gearbox failure, it's better than it was when I bought it! I was expecting it to be good after all the work, but it really is transformed. The engine itself is quieter (reduced valve noise, etc.), pulls harder (could be the work of the final stage unit) and runs much more smoothly.

...but the best bit is the handling. Moving from a 944 Turbo I always found the 993 suspect when pushed. Slow to turn in, too much under steer (seriously!) and slightly nervous at speed. The new suspension and A-arm bushes seem to have cured all of that, and then some. The car is much tighter and more responsive, the steering is more direct and the car finally inspires confidence. Just the result I wanted!

Is it as good as it could be? Probably not. I compromised on the set-up as it's a Targa, using M033 and Bilstein HDs. The roads around here are pretty bad, and (having run a number of race prepped cars) not good for low and hard suspension. On the smooth tarmac sections I wish I'd gone M030, but then thank the stars I didn't when the surface gets back to its normal pot holed best. In all, I'm pleased with the compromise, although I may run for a few weeks and re-evaluate - there's still some adjustment left in the HDs...

I'm sure we all run an internal "wish I'd done that while I had the chance list". Well, for me it is, for once, pretty short. The gear lever has been set back slightly so it's less of a reach, and the rebuild has made the change much sweeter anyway, but I wish I'd had a short-throw kit fitted. And... that's about it.

The only problem I have now is running the engine in for a few hundred miles, and keeping the revs sensible while I do it. Very difficult. Oh well, gives me chance to explore the handling, I guess.

Just the interior (again) and the wheel refurb left, a couple of roof seals and some trim and then, if history serves as any warning, time to sell and start all over again...

Definitely very pleased with the results, and impressed with the job my indy did. Kept me informed, gave me lots of sensible options and, best of all (having been a race mechanic), 2nd guessed the settings I'd want and had the car beautifully set up!

Cheers/John

p.s. New mantra. Never again. Never, ever again will I buy a project car.
 
Glad to hear you are back on the road again and pleased with the result. Sounds great. I had a chat with the Porsche classic mechanics from the factory whilst at goodwood revival. They have completely restored a number of 993s now and I got the impression it cost more than the new price.
 

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