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The first time u replace an aos its difficult. U just dont know all the small things that make the job easier. If u had to do the job a second time it would be much easier.
The first time u replace an aos its difficult. U just dont know all the small things that make the job easier. If u had to do the job a second time it would be much easier.
With your uaos nobody has to do it a second time.
Yea, all true , and the reason for the thread ,but all the little things that are posted here Tips/Tricks should improve the efficiency of the task ,seriously this is a few hour job, no need to talk of "removing the engine", that is reserved for more serious jobs. This UAOS Install thread/Tips/Tricks will improve the" few hours" down to " a couple of hours" if read carefully and all the Tips/Tricks are implemented.
You are a really good wrench and not intimidated by these kinds of tasks. The intimidation factor is what causes most people here issues. If you count the bolts,clamps,and clips needed to be R&R'd the do this task it's less than a couple dozen..a few minutes each is more than enough time if you don't spend a lot of time scratching your head.
Got ours finished today.
$10 pump from Home Depot and $5 cigar, did smoke checks to installed AOS then manifold and plenums. It seemed to pump smoke and none came out of any parts of the engine.
Ha! I love it. You need to save this image when people starting about their cars smoking. Just tell'm yours prefers unfiltered from Cuba.
I don't think it's as bad as people do make it out to be. I haven't done mine yet but the biggest detractor seems to be the tight working quarters, not the complexity of the job itself. I know it's extra work on your part but perhaps updating the steps with the tricks and tips included (maybe even with photos) would be helpful for those doing this themselves. It would prevent you going through 200+ posts looking for info ha! FWIW, I may try to document the process with photos once I get to this job.
I haven't done mine yet but the biggest detractor seems to be the tight working quarters, not the complexity of the job itself.
The rubber hose under mk2 AOS and plenum(s) pushing intake manifold keep those parts off center and so very difficult to start inner AOS and 6th intake manifold bolts. How to articles like Pelicans simply say squeeze the connector pull it off, when for me I squeeze the connector and it doesn't even budge, I might have to get pliers on there to squeeze and then rotate or rock it back-and-forth to get it to release. If there are tricks to these steps I could have done the job in reasonable time and effort, and I would have paid for that info.
Is there a diagram and clear explanation of the AOS system, with and without the UAOS installed? I would like to learn the theory so we can determine what we should do next with ours, and I don't recall seeing a good explanation of the system and apologize if it's already been made available.
There is another uaos thread but in a nut shell its an air-oil seperator. It takes the crank case air which has suspended oil and seperates it so the oil drains back to the motor and the poluted air goes to the intake instead of atmosphere like older cars. The diaphram controls the vac rate so it can operate correctly.
The uaos moves the diaphram, which is what fails, to an easy area to change in case of failure. It also puts a resivior in line with a sensor so if the diaphram fails and the car sucks oil toward the intake u can shut it down before it hydrolocks.
so if u have an issue the new uaos diaphram is $25 and takes 10min to fix.
Y'all are killing my UAOS sales with all this "drop the engine talk". IS it really that hard for y'all???
At the Dealership I could do an AOS in a couple of hours. I think Kris Murphy can do it in 45 min.
Skip - shhhh. I already have people asking me to do it for them. The reason I got the UAOS is so I never have to do it again. BTW, it takes me 45 minutes to get it out (removing the manifold), another hour to get it back in. Oh, and I never get that damn clamp on the baffle right the first time. This is all on my back. Now that I have the lift, it will be quicker, and you have sold the UAOS to a few of my friends, so I am sure I will find out.
The best advice is if you get stuck, take a break, and come back to it. Also, don't start drinking beer until you have the AOS out.
Don't worry, you've got a great product there. I'm trying to decide where to fit it into the whole process. Injectors are here and ready to go. I'm trying to do these repairs in a logical order. If others can do this, so can I. Furthermore, I don't see putting the original setup back in if your's keeps me from ever having to do it again, or at least with far less work.
Starting to do the planning work of this job. Are there any things I should be changing while in there? Any other lines, hoses, fittings, connectors, etc. Have you guys broken anything during this job?
Congratulation to Skip, his UAOS is on the verge of taking off even bigger with Barry Hart Hartech is also going to offer this product on Jake recommendation in Europe. Congrats. again on success.
I had my own AOS thread going and 996.2 pointed me to this one. Not doing UAOS. 2003 C2, so it's the AOS that goes in the engine top and not the side. Seems to me this one is going to more difficult because raises up on removal. Anyone with experience on both types? Does Pelican Parts guide work well on this one?
Don't worry, you've got a great product there. I'm trying to decide where to fit it into the whole process. Injectors are here and ready to go. I'm trying to do these repairs in a logical order. If others can do this, so can I. Furthermore, I don't see putting the original setup back in if your's keeps me from ever having to do it again, or at least with far less work.
Originally Posted by De Jeeper
All plastic vac lines/boots and the coolant fitting by the alt. Also the oil fill tube.
It seems like one would remove enough from the top of the motor that doing injectors at the same time would make sense and give you some more space to work in. Thinking of tackling it that way...
02-23-2021, 04:29 AM
