Spent the last 4 days doing a few jobs on the old Edition 30 that I've been wanting to do for a while:
1. Inlet Valve Clean
2. Injector Refurb
3. Thermostat
4. Air Con CondenserThe condenser was mostly just an excuse to take the front end off. I gave up on the valve clean and thermostat jobs in the past because I struggled to get the charge pipe off, and the throttle body bolts looked impossible.
1. Inlet Valve CleanTaking the intake manifold off wasn't as hard as I expected. Just lots of bolts and pipes. I made a note of every bolt and pipe I removed so that I could check them off when refitting, and it helped a lot. Also using parts boxes to organise all the bolts made it less stressful.
I spent a good while cleaning these out. I used a combination of brass brushes, picks, carb cleaner, scotch brite, and cable ties (in that order). I didn't have an air compressor to blow the mess out, so I used a bicycle pump and that did the trick.
Part: Elring 655.840 (inlet manifold gasket)
Before:
During:
After:
2. Injector RefurbI know it's probably best to send these off for proper testing and cleaning, but I didn't have 3-5 working days on my hands so I thought I'd try the DIY method in this video:
I was a bit nervous as a few comments suggested a 12V battery would fry the injectors. So I tried with a 9V battery first, but that didn't activate them at all. So I went for the 12V car battery and it worked like a charm.
I used carb cleaner at first. Then I came in thinking I was done for the night, but then read online that you don't want to leave carb cleaner sitting inside the injectors overnight as it can eat away at the rubber inside the injectors. So I ran back out and flushed them through with contact cleaner.
They all seem to be working fine now, so I'm glad that all went to plan.
I also replaced all the seals and o-rings and brackets. I went for Elring kit at £10 each.
Parts: Elring 938.230 x 4
3. ThermostatCar has been struggling to get to 90 degress the last couple of months, so I suspected it was the thermostat (and it was). Not bad going really as the car is on 135,000 miles.
I have no idea how anyone manages to do this job with the front end on.
It's really awkward to get the pipes off. The clips are in awkward positions, and the pipes can be incredibly stiff. If I had to do it again I'd find an excuse to take the front end off first (e.g. replace intercooler or radiator or something). I'd rather spend an extra 2-3 hours making room than spend the same amount of time cutting up my hands, dropping bolts, and swearing like a sailor. I salute anyone who has managed to do this job at home without taking the front end off; you're a better man/woman than me.
Part: Mahle TI 6 80
4. Air Con CondenserAs I say, this was just an excuse to take the front end off.
The old one was absolutely battered to death. It still worked though, so if nothing else the new one looks tidier.
I haven't had chance to test it out yet as I don't want to regas the aircon until I'm confident I haven't got any leaks anywhere (probably give it a week or so), plus it's sub-zero outside at the moment so turning the air con on while I'm in the car wouldn't make my life any more enjoyable.
Before:
After:
Part: Denso DCN32032
Summary:The whole process took about 4 full days. I'm pretty slow though, and I spent a long time cleaning out the inlet valves. I also meticulously took pictures and wrote everything down, because I've never taken a car apart this much before.
This video was massively helpful throughout the process:
I was nervous as hell starting the car up for the first time after putting it back together, and I fully expected it not to work.
But she fired up first time, is getting up to temperature in a few minutes, and is running as smooth as I remember when I first bought the car 11 years ago.
Would highly recommend.