So the other day noticed a huge amount of white smoke when starting the car cold, and a very high idle (1500rpm) when in neutral or park.
Monday, 22 November 2021
Saturday, 30 October 2021
911 has been sold to a suitable buyer who has another awesome 996.
Bit sad to see it go, was a great daily driver and there's nothing like driving a convertible for open air motoring.
Considering buying another convertible now... just have no idea what to get, and probably not for a few months now that Victoria has finally reopened after the world's longest covid19 lockdown.
Monday, 13 September 2021
Project car Porsche 911 996 Carrera 2 Cabriolet - which path do I take? Sell as is, or repair? For sale in Melbourne Australia
So it's been a few weeks - I pulled off the exhaust, heat shield, coil packs and plugs and stuck my boroscope down each cylinder.
All great; no bore scoring on any of the cylinders. Piston heads look great too, for example this is cylinder #3.
Problem: at cylinder #6 we can see an imprint of a valve on the piston head :( No evidence of any metallic fragments or broken valve in the actual cylinder, and no cylinder wall scoring.
Diagnosis: After a bit of research, the most likely explanation is a stuck exhaust valve in cylinder 6. This would explain the initial presenting problem of a misfire, plus the noise heard on the last startup.
Best case scenario - lower or drop engine, remove bank 2 cylinder head, send to a machine shop for repair and refurbishment, reinstall and we're good to go!
Unsure if I can be bothered to be totally honest - this car has been up on jackstands in my garage for half a year while I've been busy upgrading/replacement a bunch of other parts... maybe it's time to grab a new project?
What I'll probably do is advertise the car as-is and see what offers I get. If they're all lowball offers, I'll leave the car in the garage until I get the motivation to research the procedure, drop the engine and pull the head off. I'll probably need a professional to help put it all back together again, that's the only part I'll outsource.
So I'll put together a condensed history of the car here that I can direct interested buyers to.
Summary: 1999 Porsche 911 (996) tiptronic cabriolet, 258,853km. Black body and roof, charcoal wheels. In my ownership since February 2018 at 246,498km.
The main problem:
Cylinder 6 stuck valve as described above. Requires bank 2 cylinder head removal, refurbishment and reinstallation. I have a video from mid July 2021 of the car idling beautifully after replacing all sparkplugs, as well as a video of the startup where you could hear ticking noise of valve impacting on piston head - car was only run for a few seconds, then shut down and not restarted since.
- Obsessive enthusiast owner (me). Pages and pages recorded on excel spreadsheet and receipts/photos available for just about every part, some procedures have been put on this blog.
- Oil changes every 5000km during my ownership. Log books available
- Not under any finance, will supply VIN number for your PPSR report.
- 2 keys and books. Great external condition, 9/10. Interior 7/10, some wear as expected from a 22 year old car, minor marks on some interior panels, and wear on right side of drivers bolster. Some minor marks on 3 wheels.
- Driver's side door latch not keeping window dropped on closure; a common problem. Car comes with an aftermarket replacement door latch new in box, not installed.
- Was driving brilliantly until cylinder 6 issue. Pirelli P-Zero tyres with good tread and even wear.
Maintenance and repair history during my ownership
- 2018 April: Repaired rear left window regulator
- 2018 July: New Crank Position Sensor, alternator/starter Y cable, drive belt, alternator regulator
- 2018 September: Replaced centre console hinge
- 2020 May: New thermostat, new water pump, complete coolant flush and vacuum refill
- 2020 June: Removed front bumper for complete cleanout of radiators and AC condensors
- 2020 August: Complete removal and refurbishment of hydraulic cylinders for roof. Replaced boot strut.
- 2020 September: Replaced handbrake switch
- 2020 October: Paint correction + sealant
- 2020 December: Replaced broken rivet for roof cable, replaced roof drains and cleared all drains.
- 2021 February-August: Installed upgraded 997 oil pressure relief valve and spring. Replaced fuel pressure regulator, fuel pump, fuel filter. Refurbished throttle body and idle air control valve. Replaced all spark plug tubes and installed new Bosch sparkplugs.
Tuesday, 10 August 2021
Porsche 996 911 - Ticking noise on startup? Checking spark plugs and investigating carbon fouling on 2 of them.
Bit fed up with this car... one step forwards, 5 steps back.
After letting it sit for a week... tried starting it yesterday and hearing a ticking noise 🙄 and instant stall. Won't start it again!
Let's do a few basic checks.
Today got the mufflers off and coils/spark plugs out. Having done it before, only takes 30 minutes or less for both mufflers out, and same amount of time for coils/plugs.
Wheels didn't have to come off, but it was a nice day... gave them a real good clean - the three I could remove anyway, the front right will have to wait for another day.
Spark plugs out - wondering why 4 & 5 are carbon fouled while the rest look fine? Literally 0km driven and maybe 10 starts out of these plugs. All were wet from fuel, which you'd expect for multiple attemps to start the car.
Sunday, 8 August 2021
Fix porsche cayenne rear hatch boot trunk falling down - replacing gas struts DIY for cayenne 955 9pa
Day 3 of lockdown #6 and no end in sight. Guess I've got a little free time to do those little chores I've been putting off.
The rear hatch on the cayenne has been falling down for a while now, and I've had replacement parts sitting around waiting to be installed.
- Replacement gas struts for the rear hatch and rear window
- Flat and Philips screwdriver, Torx bits
Friday, 6 August 2021
So the other day, was driving the trust cayenne home from work and got yet another fun fault message
Tuesday, 27 July 2021
Sunday, 25 July 2021
So... I don't actually have a fuel pressure problem I think - the fuel pressure gauge shows 3.8bar with fuel pump on/engine off, holding at 2.8bar for hours after.
Anyway, I'd ordered a new fuel filter off amazon which should arrive tomorrow, so spent today getting thte old one off.
Monday, 19 July 2021
Checking past work... is my new fuel pump bad or something else? 996 fuel pump low pressure and flow quantity
On another cold rainy lockdown day, decided to run some basic tests to see if the work I've done so far is OK.
1) Vacuum test - unable to detect any leaks (will talk more about my homemade smoke machine later if I feel like it!)
2) Removed airbox, restart - no good
3) Removed airbox, removed drive belt, no good
4) Replaced everything except MAF, no good
5) Replaced everything and bypassed fuel pump relay with jumper wire - no good
6) Swapped MAF for a dodgy cheap yum cha china MAF bought from aliexpress - no good. Put back the Bosch unit
7) Swapped in two spare car batteries from my other cars - no good.
Then thought I might as well check the new fuel pump.
- Check fuel filter - just ordered a replacement part, only $35 delivered for a Mahle filter, but won't arrive for a week. Change it out, then recheck pressure and flow. Try starting car.
- If still no good, check for low voltage to fuel pump (should be at least close to 12V). Perhaps a bad ground, loose connection, or bad wiring. Or maybe the voltage is fine.
- Obstructed fuel lines - visually check as much as possible for any crimps, bends, folds etc that would obstruct flow.
Saturday, 17 July 2021
Welcome to lockdown #5 in Victoria, thanks to Glady's royal f#ckup with NSW "gold standard" contact tracing and quarantine.
Anyway, done some minor work in the last few weeks.
Pulled both exhausts off in preparation to a major service - replacing spark plug tubes, spark plugs and coilpacks. Might as well polish the exhaust tips while mufflers are off. Easy to remove - 17mm bolts on the cross pipe, and 13mm bolts x3 holding the muffler on.
So the other day noticed a huge amount of white smoke when starting the car cold, and a very high idle (1500rpm) when in neutral or park. R...
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