My AOS adventure...
05-17-2011, 10:29 PM
#16
Addict
Rennlist Member
Rennlist Member
Wow you're an inspiration for me to get this done!
Did you need to order any other parts for this job aside from the AOS? I know your alternator has issues now but for the core job was anything else needed? I wanted to make sure I had all parts on hand before giving this a try.
Did you need to order any other parts for this job aside from the AOS? I know your alternator has issues now but for the core job was anything else needed? I wanted to make sure I had all parts on hand before giving this a try.
05-17-2011, 10:44 PM
#17
I only thing I ordered was the AOS and an oil filler tube w/ o-ring. I know most people replace the intake manifold gaskets but I opted out. Mine were still in good shape anyway. Prepare to break little plastic tabs on various connectors and clamps. Some were fairly brittle. It doesn't really matter though, its a car not an airplane. Feel free to message me with any questions once you drive into the project. I found the entire replacement very easy and accessible after moving a few components out of the way. Good Luck.
05-17-2011, 11:37 PM
#18
Race Director
Sincerely,
Macster.
05-18-2011, 08:12 PM
#22
05-18-2011, 08:25 PM
#23
Your going to need more tools than that. You really only need a couple screw drivers (common and Philips) a socket set (shallow and deep well) with 7mm - 15mm, 3/8 extensions (two 6 in), 1/4 extensions (one 3-4 inch) and a pair of pliers or adjustable pliers for the AOS boot.
11-04-2011, 09:19 PM
#25
Oh well....about 2 miles before getting home I was stopped at a red light. The idle started to fluctuate unusually weird and as I left in the rear view mirror...white smoke. I immediately pulled over and turned off the engine upon further inspection I didnt see any oil or coolant dripping. So I started the car up again and white smoke, oil pressure held, temperature remained stable...so i coasted home.
I did the test where I tried to pull of the oil cap (on tight and air sucking when removed) and the car almost died...soooo AOS replacement this weekend. Im just thankful for Rennlist and these DIY tutorials..
I did the test where I tried to pull of the oil cap (on tight and air sucking when removed) and the car almost died...soooo AOS replacement this weekend. Im just thankful for Rennlist and these DIY tutorials..
11-05-2011, 04:27 PM
#28
Race Director
Oh well....about 2 miles before getting home I was stopped at a red light. The idle started to fluctuate unusually weird and as I left in the rear view mirror...white smoke. I immediately pulled over and turned off the engine upon further inspection I didnt see any oil or coolant dripping. So I started the car up again and white smoke, oil pressure held, temperature remained stable...so i coasted home.
I did the test where I tried to pull of the oil cap (on tight and air sucking when removed) and the car almost died...soooo AOS replacement this weekend. Im just thankful for Rennlist and these DIY tutorials..
I did the test where I tried to pull of the oil cap (on tight and air sucking when removed) and the car almost died...soooo AOS replacement this weekend. Im just thankful for Rennlist and these DIY tutorials..
11-11-2011, 11:45 AM
#29
Just an Update:
I reviewed all the DIY post on Rennlist and Renntech in which I developed my own plan of attack. The DIY on Renntech has you removing the air pump, coolant tank and alternator in order to get to the AOS. The DIY on Rennlist has you removing the manifold without removing any of those components. My approach was a hypbrid of the two in which I only removed the alternator. I removed the alternator in order to get more access to the manifold bolts by sliding my hands underneath the manifold. I was able to reach the far back bolt without any issues or loss of patience. This was an ideal time to also check the belt for any cracks as the serpentine belt needs to be removed.
The project from start to finish took approximately 5 hours and some of the key points to point out are:
-Patience…have plenty of it
-Make sure the AOS is seated correctly and grease the grommet prior to installing.
-Do not over tighten any bolts as they will strip
-Make sure the couplers on the intake manifold are aligned correctly (I had them misaligned which caused severe backfire when I restarted)
-Extensions to get to the AOS bolts
-Use a regular hose clamp when reinstalling the bellows
-The AOS i ordered from Porsche comes with the bellow ($135 with PCA discount)
-And finally patience….
Links for reference:
Renntech: http://www.renntech.org/forums/index...placement-aos/
Rennlist: https://rennlist.com/forums/996-foru...separator.html
I reviewed all the DIY post on Rennlist and Renntech in which I developed my own plan of attack. The DIY on Renntech has you removing the air pump, coolant tank and alternator in order to get to the AOS. The DIY on Rennlist has you removing the manifold without removing any of those components. My approach was a hypbrid of the two in which I only removed the alternator. I removed the alternator in order to get more access to the manifold bolts by sliding my hands underneath the manifold. I was able to reach the far back bolt without any issues or loss of patience. This was an ideal time to also check the belt for any cracks as the serpentine belt needs to be removed.
The project from start to finish took approximately 5 hours and some of the key points to point out are:
-Patience…have plenty of it
-Make sure the AOS is seated correctly and grease the grommet prior to installing.
-Do not over tighten any bolts as they will strip
-Make sure the couplers on the intake manifold are aligned correctly (I had them misaligned which caused severe backfire when I restarted)
-Extensions to get to the AOS bolts
-Use a regular hose clamp when reinstalling the bellows
-The AOS i ordered from Porsche comes with the bellow ($135 with PCA discount)
-And finally patience….
Links for reference:
Renntech: http://www.renntech.org/forums/index...placement-aos/
Rennlist: https://rennlist.com/forums/996-foru...separator.html
11-11-2011, 12:44 PM
#30
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Join Date: Jun 2009
Location: Louisville, KY
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Have any of you who track your cars considered replacing the AOS with the motorsports version? (Here at Suncoast for $730: http://www.suncoastparts.com/product...ry_Code=996Oil
I had my car in recently for clutch, DMF, IMSR and found the AOS to be leaking a bit. My indy recommended waiting for it to fail and then upgrading to the motorsports version. I do DEs and am on the slippery slope...., but I'm not sure this is a worthwhile upgrade, especially given its expense. What do you all think?
In any case this will be a DIY, so thanks Alex for the procedural notes.
David
I had my car in recently for clutch, DMF, IMSR and found the AOS to be leaking a bit. My indy recommended waiting for it to fail and then upgrading to the motorsports version. I do DEs and am on the slippery slope...., but I'm not sure this is a worthwhile upgrade, especially given its expense. What do you all think?
In any case this will be a DIY, so thanks Alex for the procedural notes.
David