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The UAOS uses a " Uniseal" to make the drain connection to the oil fill tube ...A .500 hole is made in the oil fill tube, then the Uniseal is placed in the .500 hole, the Uniseal has a tapered inside hole that expands as you press in the brass connector to lock it in place, then attach the rubber drain hose .... Has a rating of up to 145 psi pressure....lol
That's a good looking oil fill tube, I could easily fit the UAOS drain fitting into it...( no different than putting it in the OEM oil fill tube).. I just wish the OEM cap would fit since a lot of people have them set-up for manometer tests to test AOS and blow-by tests...
The fitting has a high pressure rating, but the oil tube is quite thin. I could design a lower tube with features designed right in, parts can be thermally bonded in place.
I considered a custom part with built in port for manometer testing; it wouldn't be hard to offer one on my website, if there is enough demand.
I'd recommend v2.0 simply include the upper and lower ports w caps for manometer and UAOS, respectively. I don't have a strong idea of the depth of the 996 market, but the activity on this forum is a decent portion of the enthusiast crowd. I'd find it hard to imagine that management of multiple SKUs is worth it. Just my $0.02. I have a 986 so I'll just hang out over here regardless
I might be interested in a version that already has provisions for the UAOS track drain . I commend you for thinking outside the box to come up with a solution for the fragile OEM part .
You may want to find somebody with a UAOS and make sure that it’s compatible with that. The diaphragm may be in the way.
If I understand this correctly, you’re offering a 21 day warranty with a product that has minimal testing?
Great Idea, again another thought and I notice the tube is tie strap to the AOL coolant line, suggest everyone replaces that fragile connection with a metal one if not already done. myself I don't run that coolant line with UAOS and would fabricate a bracket to support the oil tube using the AOS coolant line bolts hole.
Thanks everyone, regarding the modifications for the UAOS I'm open to creating a specific version of the lower tube with the tube port at some point. I'd need to collect more information on the port location, type etc.
If folks are modifying their off the shelf Porsche stock tubes for the UAOS port then such a modification might work for this new product too; especially as the wall thickness it much greater than the stock version
Chris, I got my filler and I'm willing to sacrifice mine to figure out the best way to integrate the UAOS. Alternatively, I will help fund the development of what it takes to connect to the UAOS. My build plan is April 22, so we have time to pull it together. I will work with PT3.
Looking at the pics I don't think the cap placement is going to work with the UAOS . As already mentioned the diaphragm is going to interfere . The upper pipe might have to be an inch or two longer . I may be interpreting the pics incorrectly .
Looking at the pics I don't think the cap placement is going to work with the UAOS . As already mentioned the diaphragm is going to interfere . The upper pipe might have to be an inch or two longer . I may be interpreting the pics incorrectly .
I was concerned about this too. It's already pretty tight around there on 99s with the cable throttle and UAOS diaphragm.
It seems the problem with the OEM filler tube is the flex accordion section. Tell me if I'm wrong, but that's where I've seen them crack.
I applaud Chris' efforts to make a solution for another common gripe among Porsche 996 owners.
My challenge would be could the design be modified to accommodate the UAOS? Maybe protrude out a little longer like the OEM filler tube? Could the design come in a one-piece version? Could the trap be moved to the filler section to make it easier to clear FOD?
Lastly, as I've mentioned before, it would seem like the plastic neck could be designed in a way to mount to the engine in stead of having to use zip ties. (see attachment) The mount in the attached Ford design is obviously metal, but I've seen some on other filler tubes that were plastic. . Just a thought. Keep up the good work!
I can add the Track Drain Uniseal fitting to any of your existing lower pipes, no problem. But I think the cap location will slightly interfere with the UAOS diaphragm..
Extending the upper pipe 1.5" should clear the diaphragm ( but need to check to see if it interferes/clears the engine compartment cooling fan in the deck lid)...and the port for Manometer testing will add value to your product...
Diagram of possible improvements ( pending verification of fan clearance)..
EDIT :: I think the two piece pipe makes since, the upper portion can be removed for more clearance when dropping the engine...in the OEM design, the "accordion" section is flexible and can be moved out of the way( but is prone to cracking if not brand new). But in a ridged pipe, you would need to remove the upper section to gain clearance...
Last edited by Porschetech3; 02-04-2024 at 04:46 PM.
01-31-2024, 10:57 PM
