 oil return tubes on 2.0 six, changed to: not stock, so what do I have? |
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| porschetub |
 Sep 2 2020, 10:19 PM
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#21
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Advanced Member  Group: Members Posts: 4,703 Joined: 25-July 15 From: New Zealand Member No.: 18,995 Region Association: None  |
QUOTE(Literati914 @ Sep 3 2020, 03:11 PM)  QUOTE(fixer34 @ Sep 2 2020, 01:14 PM) .. To my mind, a spring loaded assembly like this would be better than a rigid tube. .. (IMG:style_emoticons/default/agree.gif) , how can this not be better than no spring at all, at least for after market? I've seen 'em before too.. but maybe it was type I, not sure. Do we know for sure that Type I's have different dimensions? I might be interested in getting some. . The spring is on the inside of the replacement 911 return tube to compress it into the gap,no other reason,the external spring VW one is designed to compress the cup type (conical ?) seals in the case and heads.. different use but principal is the same to get around engine pulling your engine apart. |
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| fixer34 |
Sep 3 2020, 05:32 PM
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#22
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Senior Member Group: Members Posts: 1,085 Joined: 16-September 14 From: Chicago area Member No.: 17,908 Region Association: Upper MidWest 
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QUOTE(porschetub @ Sep 2 2020, 11:19 PM) QUOTE(Literati914 @ Sep 3 2020, 03:11 PM) QUOTE(fixer34 @ Sep 2 2020, 01:14 PM) .. To my mind, a spring loaded assembly like this would be better than a rigid tube. .. (IMG:style_emoticons/default/agree.gif) , how can this not be better than no spring at all, at least for after market? I've seen 'em before too.. but maybe it was type I, not sure. Do we know for sure that Type I's have different dimensions? I might be interested in getting some. . The spring is on the inside of the replacement 911 return tube to compress it into the gap,no other reason,the external spring VW one is designed to compress the cup type (conical ?) seals in the case and heads.. different use but principal is the same to get around engine pulling your engine apart. I worked on a lot of VW type 1/2/3 engines 'back in the day'. The pushrod/oil tubes are vastly different from a Porsche 6. Much smaller and as mentioned, a conical seal on the ends. I put the heat exchanger back on without messing with the 'mystery' tubes. Someday when I (or someone else) pulls the engine, we can get an answer. I did put a magnet to them, the spring is obviously steel, and it sticks about 1/3 of the length of the large tube. Maybe from the smaller steel(?) tube being inside. The rest of the large tube appears to be aluminum, but pretty heavy duty. Again, I would have to pull one, but sure looks like a nice solution for the original fixed tubes, or compression replacements. These are 40+yrs old, so have held up well. |
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