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Registered
Join Date: Feb 2009
Location: Vasteras, Sweden/Pompano Beach, FL
Posts: 687
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Issues with expandable oil return tubes
Hi guys,
I am installing the expandable oil return tubes on my 3.2 Carrera engine. I bought them on my local ebay, just to clarify that they are not from our host this time. My issue is that I cant slide them together to be able to install them on the engine! Maybe I am dumb as a rock, but to me it looks like the two middle o-rings is too thick and doesnt allow the cover piece to be slided over the more narrow piece (the one with the o-ring slots). I lubed them up and pressed pretty hard, but I could not get them to slide together. Can anyone please share the supposed size on the o-ring? or tell me what I am missing? Regards, Johan
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-14 Cayenne S Diesel, DD -92 964 C2 convertible, RS -92 look and feel😃 -73 T US MFI Targa, restored -70 T Coupé Hot Rod, painted waiting for assembly -72 T Coupé, US numbers matching under restoration |
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10-07-2012, 12:25 AM
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Registered
Join Date: Oct 2008
Location: Nash County, NC.
Posts: 8,468
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I know that some of the guys put clamps on them so there is something to press against when you try to expand the unit as they are tight.
Bruce |
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10-07-2012, 02:51 AM
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Registered
Join Date: Feb 2009
Location: Vasteras, Sweden/Pompano Beach, FL
Posts: 687
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Thanks Bruce,
Mine are not assembled, so I havent even come far enough to worry about that.... :-) Johan |
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10-07-2012, 03:18 AM
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Post pictures......
Johan,
Could you post some pictures of the collapsible oil return tubes? Just curious about the problem you are having. I have several old and used oil return tubes ready for disposal and they seem to slide pretty well except those that were dented and crushed. Tony |
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10-07-2012, 05:35 AM
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Registered
Join Date: Mar 2001
Location: Marysville Wa.
Posts: 22,423
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the green seals will not slide on oil or grease. silicone paste like dow 111 is your only hope. goober it on and work fast. use it on the outer too.
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https://www.instagram.com/johnwalker8704 8009 103rd pl ne Marysville Wa 98270 206 637 4071 |
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10-08-2012, 10:30 AM
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Registered
Join Date: Feb 2009
Location: Vasteras, Sweden/Pompano Beach, FL
Posts: 687
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Hi guys,
It took a while but here is a picture:  This is way too tight, even with silicone lube it feels like I am going to break it. Does this one really look right? It would be great if someone could verify the o-ring dimensions. I got them to be 29 mm outer dimeter, thickness 3 mm. Regards, Johan
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-14 Cayenne S Diesel, DD -92 964 C2 convertible, RS -92 look and feel😃 -73 T US MFI Targa, restored -70 T Coupé Hot Rod, painted waiting for assembly -72 T Coupé, US numbers matching under restoration Last edited by jsoderbe; 10-17-2012 at 10:01 PM.. Reason: . |
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10-17-2012, 09:59 PM
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Registered
Join Date: Oct 2008
Location: Nash County, NC.
Posts: 8,468
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looks right...
Bruce |
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10-18-2012, 02:47 AM
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Senior Advisor
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everything looks right but put the snap ring on first and slide it down the tube. You could a wood clamp to compress the tubes together. Once there in, they do slide easer. expanding in place is tough but the hose clamp procedure does work if you have not removed the exhaust manifolds. keep after it oh and yes there are 4 to do!!
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08 Cayenne Turbo |
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10-19-2012, 04:19 PM
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Join Date: Feb 2009
Location: Vasteras, Sweden/Pompano Beach, FL
Posts: 687
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Hi again,
Now I have tried everyting, including buying a big-ass wood clamper. There is NO WAY to get it together without breaking it. I have tried silicon grease, oil, hammer, wise grips, and now a wood clamper. Could someone please measure their o-ring sizes? The only explanation that makes sense is that they must have sent me the wrong size o-rings.... Regards, Johan
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-14 Cayenne S Diesel, DD -92 964 C2 convertible, RS -92 look and feel😃 -73 T US MFI Targa, restored -70 T Coupé Hot Rod, painted waiting for assembly -72 T Coupé, US numbers matching under restoration |
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01-05-2013, 05:15 AM
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non-whiner
Join Date: Aug 2012
Location: Slightly right of center
Posts: 5,235
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Feel the inner edge of the larger tube (where it first slides over the orings) for any roughness. Sometimes there remains an edge from the cut that must be removed. Even a small amount needs to be removed in order for the tube to slide over the oring.
Then again, this is the second thread in as many weeks concerning wrong size orings on these tubes.
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"Too much is just enough." |
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01-05-2013, 05:27 AM
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Join Date: May 2003
Posts: 3,346
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Those o-rings look wrong to me. They look like the same ones as the end rings. Mine were much smaller.
-Andy
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72 Carrera RS replica, Spec 911 racer |
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01-05-2013, 09:12 PM
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