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UPDATE:
I’m sorry to say, but I did not get the help I was looking for. I understand, there are a lot of people asking all sorts of question all the time. Anyway, for anyone in the future asking the same stuff, here are my findings:
I finally changed the spark plugs and checked the valves at 125.000 km. It took me about 7 hours on the Honda jazz/fit, 1.4 L, 2009. I had to remove a hell of a lot of things just to get to the valve cover. And I am a total amateur DIY (my education is in biochemistry and this is my fist a bit more real “car job”).
When checking the valves, I only adjusted 3 out of 16 and even that only just. My recommendations is that they don’t need a check until 200.000 km. Also the spark plugs seemed in excellent condition, they had a tiny bit of whitish tan to them (except one was partially covered in brownish crust – what is that?). For these, I also recommend changing them not sooner than at 160.000 km (I would have them ready and only changed them if any problems occurred, if not, I would change them anyway at the 200.000 km – united with the valve adjustment).
I changed the gearbox oil and it was to my eye in good condition, I think it could be changed later, at 160 or 180.000 km.
As far as the brakes are concerned, I took a look at other small cars with 4 wheel disks and some seem to have the same issue. My theory is, that they are under-used (specially in my case since I drive mostly on the highway and in traffic I tend to break mostly with the engine and use the brakes lightly) and also that they are sensitive to debris and material ageing (since I don’t wear them and thus don’t change them – I’ve had the same pads since beginning and they still have a lot of “meat” to them).
I still have the fuel filter job to do and I’m not looking forward to that 😀
Here is the photo of the valves if you have any comment:
UPDATE:
I’m sorry to say, but I did not get the help I was looking for. I understand, there are a lot of people asking all sorts of question all the time. Anyway, for anyone in the future asking the same stuff, here are my findings:
I finally changed the spark plugs and checked the valves at 125.000 km. It took me about 7 hours on the Honda jazz/fit, 1.4 L, 2009. I had to remove a hell of a lot of things just to get to the valve cover. And I am a total amateur DIY (my education is in biochemistry and this is my fist a bit more real “car job”).
When checking the valves, I only adjusted 3 out of 16 and even that only just. My recommendations is that they don’t need a check until 200.000 km. Also the spark plugs seemed in excellent condition, they had a tiny bit of whitish tan to them (except one was partially covered in brownish crust – what is that?). For these, I also recommend changing them not sooner than at 160.000 km (I would have them ready and only changed them if any problems occurred, if not, I would change them anyway at the 200.000 km – united with the valve adjustment).
I changed the gearbox oil and it was to my eye in good condition, I think it could be changed later, at 160 or 180.000 km.
As far as the brakes are concerned, I took a look at other small cars with 4 wheel disks and some seem to have the same issue. My theory is, that they are under-used (specially in my case since I drive mostly on the highway and in traffic I tend to break mostly with the engine and use the brakes lightly) and also that they are sensitive to debris and material ageing (since I don’t wear them and thus don’t change them – I’ve had the same pads since beginning and they still have a lot of “meat” to them).
I still have the fuel filter job to do and I’m not looking forward to that 😀
Here is the photo of the valves if you have any comment:
They wear even between discs, but the rear disks themselves have uneven wear (meaning grooves). Each back disk has sort of a few mm wide and maybe 1 mm high circular bulge. My guess would be that at some point in time, the brake pads were damaged and are now wearing strangely. Furthermore, my guess would be that the car was driven with the handbrake on (or some other sort of back brake malfunction – I also have a receipt saying there was some brake work), thus heating the back brakes and damaging the pads. I cannot know for sure, since I am a second owner.
They wear even between discs, but the rear disks themselves have uneven wear (meaning grooves). Each back disk has sort of a few mm wide and maybe 1 mm high circular bulge. My guess would be that at some point in time, the brake pads were damaged and are now wearing strangely. Furthermore, my guess would be that the car was driven with the handbrake on (or some other sort of back brake malfunction – I also have a receipt saying there was some brake work), thus heating the back brakes and damaging the pads. I cannot know for sure, since I am a second owner.