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Oil change

To soak up the gush, use an old sock with the end cut off and slide it over the filter. As you under the filter push the sock further down to catch the oil.

Phil
 
Those filter removal tools with a chain or strap that wrap around the side of the filter wont work as there is not enough room around the side of the filter (well there isn't for the type of removal tool i've got). Try one of those 3-pronged filter removal tools that fit over the top of the filter and tighten on it as you unscrew.
 
Being new to 944 ignition systems, does the dme relay control the spak via the ecu? If it does then what about if he removes the dme relay and the spark plugs? He can then whizz the engine over with virtually no load and build up pressure.[8|]
 
Put old lino on the driveway beforehand and remove the engine undertrays to save filling them up with your spillage.

I've never done it cleanly yet [8|]
 
Raise the headlights. This moves the mechanism out of the way and makes the oil filter much easier to get to.
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If you do this disconnect the battery and raise headlamp manually.

Better to have disconnected battery than disconnected fingers [:mad:]

Mike[:'(]
 
You just need to pull the right fuse, but I agree; the headlight motor doesn't take prisoners and you wouldn't want to have a finger in the wrong place if it decided to move.
 
[8|] Thanks for the many replies. I have taken note of all of them and hope to do a perfect oil change with no mess!!!! [:D]
 
ORIGINAL: 924nutter

Being new to 944 ignition systems, does the dme relay control the spak via the ecu? If it does then what about if he removes the dme relay and the spark plugs? He can then whizz the engine over with virtually no load and build up pressure.[8|]
Click to expand...

The DME relay controls the fuel pump and has nothing to do with the ignition side of the system, althogh the DME computer in the ECU does control the ignition. I think the DME relay is commanded by the DME computer as if there is a problem with one of the engine management sensors (crank sensor for example) the DME will not swith the DME relay and therefore the fuel pump will not operate and the engine wont start - although it will turn but you'll have no fuel and spark as the DME computer also will not command a spark.

I don't recall the headlight mechanism being in the way of the oil filter. I only had a problem initially unscrewing the oil filter as my filter removal tool was too bulky and I couldn't get enough of my hand around the filter to unscrew it. Once I managed to get the filter loosened I could unscrew it with my fingers.
 
Actually I'm pretty sure the DME relay does control the ignition. Otherwise it would be called the fuel pump relay like it is in most other cars.
 
Maybe it switches both then, as one of the first ports of call in the troubleshooters guide if you are not getting fuel is the DME relay.
 
It definitely does the fuel, but I'm 95% sure it does the DME also. That's why you can get engine weirdness when it goes faulty as well as just non-starting.
 
ORIGINAL: Fen

You just need to pull the right fuse, but I agree; the headlight motor doesn't take prisoners and you wouldn't want to have a finger in the wrong place if it decided to move.
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True. I would ask why the mechanism should start moving for no good reason, but given the ease with which you can pull the fuse, why ask the questions and why not just do it? I'm quite attached to my fingers ...


Oli.
 
It shouldn't start moving, but it might if someone touched the light switch or if for any reason the mechanism was moved slightly as then the motor takes over and completes the move.
 
ORIGINAL: Fen

It shouldn't start moving, but it might if someone touched the light switch or if for any reason the mechanism was moved slightly as then the motor takes over and completes the move.
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.... whereupon your manual dexterity takes a turn for the worse, and you get an interesting collection of slightly crunchy sausages for breakfast.

Doesn't bear thinking about, does it? I'm taking the fuse out in future. (Although this never occurred to me before.)

Incidentally, on the 928, the headlight mechanism is prone to wearing, and the connection bar (runs along the width of the car, connecting the headlights) has a habit of shedding it's circlips. Should the very end circlip go walkies, the mechanism can slip down the bar, meaning that next time you operate the lights it pushes one of the levers through the air-con condenser ... which cost about £900 from OPC, or so I'm told ...


Oli.
 
if for any reason the mechanism was moved slightly as then the motor takes over and completes the move.
Click to expand...

Knocking the manual control wheel with the rubber boot off was that reason[:eek:]

Made me jump, good job I wasn't stretching across the mechanism[:mad:]

Mike[:'(]
 
Hi George,

You still need to change that engine oil. For cars that burn a lot of oil, there are many contaminants that collect in the filter and languish at the bottom of the sump. Hence, very important to change the oil frequently (6,000 mile or sooner if the car is used hard or in extreme conditions). Essential to use a good quality oil that is the right viscosity for your engine (considering it's mileage and wear).

My advice would be to continue to change the oil at least every 6,000 miles. I understand your logic if you are adding a litre every 1200 miles, but the contaminants will still accumulate (they don't burn off or leak like the oil may do). A full oil change (with filter) is 7 litres for the 944 Turbo.

Regards,
Andrew
 
Plus, all that condensation that we see on the filler cap over winter is water from within your oil sump. Water and bearings do not go well so regular changes are a must.
 
IMHO, I reckon its also worth draining the oil cooler once every so often as when you do a standard oil change, the ~0.6L in there doesn't get changed ?

C
 
I will keep to the regular changes as you all suggest.

T'was just a thought[8|], I guess I knew all along.

Chris, the cooler explains why I did not need as much oil as Andrew mentions. - thanks for the reminder.

Filter removal is a messy operation too.

George

944T
 
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