Years ago, I restored a 1973 2.0 and made a tribute to the LE but did red with white trim and bumpers. My FI was gone when I got the car, so I went to a PMO dual Weber setup, which was awesome. I got into a racecar and my Dad bought it and only sold it when he moved into independent living. My focus was on getting a 911, or I would have kept it. Watching your series is bringing back good (and a few bad) memories…but I learned so much and became a better mechanic which really helped me in my racing 13 years. Keep up the good work, and I cannot wait for you to finish!
Nice video! Don't beat yourself up on the coil/spring thing--it's both. A bimetallic coil spring. When I did mine, I used a hammer and chisel (uhh, maybe a screwdriver used as a chisel, don't tell anyone!!) to pry open the lip of the can that folds over the top, instead of cutting the folded part of the lip off. I only folded a few spots back over again, as it looked like the metal might crack if I bent it too much. I also used RTV around the edge like you did. Mine wasn't nearly as bad as yours, I must say! I just pulled the guts out of the can, and used a slot-head screwdriver on the bottom of the shaft to twist the valve back and forth, which freed it up pretty well. I don't remember having to push the spring further in, but I might have had to. Removing the top hose fitting was a great way to show the actual workings of the valve! But I don't think it's necessary to do that if you are just repairing the valve, so skipping that makes the job even simpler. Great job as always!!
Thanks, Dave! I took the top hose off in hopes that I could soak it from above to free up the mechanism. Otherwise, you're right...no need to remove. Also, I didn't cut off the lip...I grinded it. Actually also used my bench grinder to release the lip (though I didn't shoot that). Pretty much any method works, as long as you don't cut the ledge on the can.
Such a satisfying job! I will put this on my rainy day job list. As always your videos help those of us afflicted with the 914 spring, I mean coil…Lol….I mean bug….
I've refurbished a few of those over the years without complete disassembly. I soaked the ports in 'Berryman's Chem Dip' and applied 12 volts to the heater element off & on over a course of time and then rinsed with brake cleaner. Had to repeat the process on a couple of them, but eventually got those ones clean enough to work again. Nice to see exactly what's inside of one though ;)
Great video, Ian. Thanks for posting it. I have to do this rebuild/cleaning of the AAR on my 1.7 Porsche 914. It’s never worked correctly since I bought the car.
Precisely what I needed to see for mine. Looks like a project for the weekend! Thanks, Ian! BTW, I was out on LI last week, went to a nice LI VW Club show out in Riverhead!
Hi. Just wanted to let you know that your instructional video gave me the confidence to attack the refurbishment of my AAV because the Porsche shop couldn't get the idle to come down - the just blocked it off ! ? ! As I got to the refurbishment, it turned out the sleeve was moving without too much difficulty. I now believe I had too much paint between the AAV and the plenum attachment not allowing electrical operation ! ? Maybe, what I do know is the valve visibly works, and thank you for your excellent instructions. jh
I almost hate to see you buy a tripod because it’s become a sport to see what you can do one handed lol! But seriously, you need a flexi mount for your camera lol!
Ha! I use both! Actually only a handful of shots in this are handheld. The one in the engine bay kinda needs to be. Especially when I’m shooting at 1am and no one is around to help :)
Great video, simple and clear. My AAR doesn't have mechanical problem but electrical problem. The tiny spiral at the bottom is gone... Where can I find a 13 ohm new spiral? Thanks
Thanksl Tony I just used permatex black RTV sealant. Pretty much any silicone sealant would work since it's just there to glue things together and keep it water tight.
Great video leading me to check my AAR as a source of weird idle. My unit closes with 12V direct but not 100% closed. Should it be 100%? Shutter seems to move pretty easy back and forth when I probe it with a pick.
Thanks. Not sure how to post pictures but in addition to carb cleaner, I turned the AAR upside down and immersed the top 1/2 in an ultrasonic cleaner and that really helped clean the gunk out.
Ian, on the bench approx. 8 min close and 8 to return to open. Does that sound within normal range? Does this part this hot continuously when running? It is very hot. 12:05 12:05
Ian!? Most awesome video ever I have seen about D-Jet analog electronic fuel injection auxiliary air idle control valves. Extremely rare and expensive when properly working. I PB soaked mine and smacked it several times with a plastic hammer to free it up after not driving for a couple of years. It does not help the bi metal spring pivots on exposed humidity ect from the air intake. The contention is that it needs to be cycled and never sat in moisture. Would like to share some other thoughts about the MPS and control unit as well. Perhaps share a telephone direct contact with you?
Thanks, Tyler! I must admit that, when it comes to the mystical nature of the MPS and ECU, I generally leave that to the wizards. Happy to chat about it with you, though. You can find me as iankarr on 914world.
@@dewder74 The early 74 1.8s used the same part (or possibly just looked the same?) but most of the 1.8s used a different part, one that looks a little like a witch's hat laying on its side. Disassembling would be fairly different, but it works on the same principles, with a bi-metallic spring moving a rotary valve (in that case, a disc rather than a tube) to allow or block air through the valve.