What I Did To My Saab Today.

[Audax]

Also discovered in the course of chucking it round a roundabout, that the CrossClimates get really very soft when it's hot. Still very grippy but a mild amount of understeer (ok maybe quite a lot  ) on a right and then left hander and the outer edge of both front tyres is torn quite noticeably. They wouldn't last long if I always drove like a loon..

You sure? my crossclimates have lasted very well despite being given a lot of abuse.

[fka]

Yup. I wish I'd taken a pic yesterday. I'll look at them again in the morning but since I've just done an 80 mile round trip, I suspect the loose rubber will have come off now. The trailing edge of each tread block on the outside edge of the tyre had a noticeable burr (for want of a better word) of rubber along them.

[carrera]

Check the tyre pressures (not necessarily change them), take it for a bit of  and then take a photo for us to look at and the tyre pressure when hot.

From your description it does sound as if they may be getting to the edge of the performance envelope, but other factors may be affecting this.

[fka]

Pressures were checked yesterday and are all at 39psi. Believe Audax is running higher pressure on the same tyres with no issues and the 9-5 handles a a rides lot better with them up at 39.

Haven't got the time to go out again today and there's too many cyclists on my local track to go silly.

Pic below shows the missing rubber mostly on the trailing edges but the burrs have warn off during my drive yesterday..

[sgould]

Those tyres are OK compared to the one that ran at 12 psi for an unknown period...

The Carlsson went in for service today.  And came back with some unforeseen things.

But it now has had a service. It's got a new MOT. New rear discs. New rear pads. New rear spring seats. And a new front tyre because I asked them to investigate and they found a big nail in an unrepairable area.  There was also a large screw in the replacement winter tyre that I asked them to fit in place of the damaged one, so that had a puncture repair, as the damage was in the middle of the tread. And a rear axle boot had split, which I hadn't noticed, but was picked up by the MOT man.  At least the lockdown has save a bit of money on travel. That will offset the cost.

The car went to Joes Repair Shop in Epsom.  He was playing with an NG2.0 that he has bought.  The misfire it had has been traced to No.4 injector being stuck open!!

[fka]

nothing like a bit of unforeseen expenses

I think that's the NG95 he left with me for the afternoon. Was surprised to see to see his post on FB about the misfire, I thought it was running spot on when I had it..

Don't get me wrong about the tyres, there's nothing wrong with them, I was just expressing some shock at how much rubber they'd lost with so little effort. I've given them much more abuse than that on cooler days and didn't see any wear. It was about 24 degrees that day and they felt a lot softer when driving and evidently lost a visible amount of rubber.

[carrera]

What I did to my dads car....

In the middle of doing some general servicing to the 9000 Aero it was time to replace the dizzy bung, so off with the cam cover.

Wow, how clean is this for a 205,000 mile car, compare it to some of the others I have looked at recently. It really shows how Saab screwed up the PCV system on the 9-5, both vent holes were completely clear too

[carrera]

Yesterday I finished the service on the green Aero by swapping the cabin filter out. It's the first one I have ever done, I'm grateful to still have a good degree of flexibility, it was needed. The grey one will be next and be much easier as a result

Today I have taxed the 9-5 diesel as that is going to spend a period as a daily runaround. Best modify my signature 

[carrera]

Took the diesel out for a run. Gentle running at first around town I was getting 45 mpg, and then a CEL when I started to stretch her legs in 3rd on a bit of open road with a P0244.

I found the problem to be with some vacuum pipes for the swirl valve solenoid, so that's something else learnt.

Swirl valves work, low down torque is better so I don't yet know why people want to delete them. I'm getting ~1.05 bar boost now, which seems good enough, but couldn't find a specification anywhere. She goes surprisingly well

[Audax]

Swirl valves work, low down torque is better so I don't yet know why people want to delete them.

People like to remove things they don't understand as they for some reason think they know better than engineers who spent 5 years studying their trade before even beginning to practise it. Seen so many bodges to try and work around things before on Saabs rather than fixing them properly. One of the worst was a manual boost controller on a 9-3 which came in for service and "not running right", I took it for a test drive and there was literally no boost, the thing barely moved, got it back to the workshop and we removed the MBC and took it for a drive and it was running great, called the customer up and he told us that we had to put the MBC back as "it gives more on the low end" so we stuck it back and left him to it, he wouldn't accept that this MBC was the reason his car was not running right.

[sgould]

Not quite "done to my car", but I now have a permanent 12v supply in the shed so that I can test things out in the dry on a workbench.

[carrera]

Computer supply ?

12v and 5v if you have

[sgould]

I got one of these from TLC.  It's 13.8v and 5A.  It has a little fan in it to keep it cool.  It's wired to a double cigarette lighter outlet mounted on the wall.   The transformer 12v outlet is from two clamp screws, but the centres remain free for plugging in some banana plugs, if necessary.

https://www.tlc-direct.co.uk/Products/SK650656.html

The computer stuff can be fed from the USB outlets on the 13A mains sockets.

I looked through a big box of surplus computer chargers that I have, and none of them had a 12v outlet. 

[carrera]

Ah, I meant desktop computer power supply, which is pretty much what that looks like but with just one rail, at 13.8v rather than 12v.

I only mentioned the 5v because some stuff works at that voltage, but don't ask me to name anything 

[carrera]

Fitted the cabin filter to the grey Aero car, much easier second time doing the job.

Then I moved onto refitting the siren module which went similarly well.

After that I decided to replace some of the vacuum pipes on the diesel to prevent them coming off and throwing some more EML's. This was more difficult than expected because three pipes go through a piece of PVC tubing on their way to the inner wing and they were stuck to the tube.

This interfered with my plan of removing and replacing one at a time. After a couple of tries as I remembered things which caused problems, I ended up resorting to EPC to get the correct routing. The solenoid valve for the swirl flaps could be found, but not the cut off solenoid, but that was enough information. After that everything was fine and full boost was available again.

Then time to wash my hands, diesels are filthy things, even when you have cleaned the engine bay.