 Question for 914/6 oil tank/oil change, Does it need a supplemental way to drain? |
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| 930cabman |
 Jul 10 2024, 01:02 PM
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#21
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Advanced Member  Group: Members Posts: 3,618 Joined: 12-November 20 From: Buffalo Member No.: 24,877 Region Association: North East States 
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QUOTE(Krieger @ Jul 9 2024, 07:38 PM)  This is the solution I came up with. I ordered the factory oil lines from the the tank to the cooler. It came with a union. I had a face machined then drilled and tapped it for a drain plug. I drilled the plug so I could safety wire it. Thanks for chiming it, especially after several years ago. This is great information |
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| porschetub |
Jul 10 2024, 04:12 PM
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#22
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Advanced Member Group: Members Posts: 4,728 Joined: 25-July 15 From: New Zealand Member No.: 18,995 Region Association: None |
QUOTE(Krieger @ Jul 10 2024, 01:43 PM) I am very happy I did this. It drains very quicky and isn't messy like disconnecting fittings. I use an aluminum washer from the valve cover as a sealing ring. Exactly what I did ,used a NPT (?) 1/8" plug as mentioned works well ,I found I got more oil out once it was warm and drained quicky after stopping engine ,seemed I had less to drain from the engine that way ,cheers. |
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| 930cabman |
Jul 28 2024, 07:26 AM
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#23
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Advanced Member Group: Members Posts: 3,618 Joined: 12-November 20 From: Buffalo Member No.: 24,877 Region Association: North East States
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Curious:
just how much oil is left in the system if only the sump is drained? Cannot be much as it appears to be the low point in the system TIA |
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| mb911 |
Jul 28 2024, 08:46 AM
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#24
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914 Guru Group: Members Posts: 7,200 Joined: 2-January 09 From: Burlington wi Member No.: 9,892 Region Association: Upper MidWest
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QUOTE(930cabman @ Jul 28 2024, 05:26 AM) Curious: just how much oil is left in the system if only the sump is drained? Cannot be much as it appears to be the low point in the system TIA Depends on wearing past the oil pump. I drain both areas to ensure a full or as full of change as I can do. I then measure that amount and put that back in as a starting point on a fresh change. Then warm the car up and check level and add as needed |
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| 930cabman |
Jul 28 2024, 09:13 AM
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#25
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Advanced Member Group: Members Posts: 3,618 Joined: 12-November 20 From: Buffalo Member No.: 24,877 Region Association: North East States
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QUOTE(mb911 @ Jul 28 2024, 08:46 AM) QUOTE(930cabman @ Jul 28 2024, 05:26 AM) Curious: just how much oil is left in the system if only the sump is drained? Cannot be much as it appears to be the low point in the system TIA Depends on wearing past the oil pump. I drain both areas to ensure a full or as full of change as I can do. I then measure that amount and put that back in as a starting point on a fresh change. Then warm the car up and check level and add as needed Thank you, I just dumped about what I filled with, about 10 qt which might be a bit much. Will fill with 9 qt next time. Not sure how much is left in there (IMG:style_emoticons/default/screwy.gif) |
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| ClayPerrine |
Jul 28 2024, 10:07 AM
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#26
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Life's been good to me so far..... Group: Admin Posts: 15,874 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille
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QUOTE(brant @ Jul 9 2024, 09:17 PM) QUOTE(Krieger @ Jul 9 2024, 07:43 PM) I am very happy I did this. It drains very quicky and isn't messy like disconnecting fittings. I use an aluminum washer from the valve cover as a sealing ring. That’s nice -12 or -16? Scratch that ….. pipe thread what size? Where did you find it? I’ve been splitting aluminum AN fittings in my line since 2005 without issues Probably over 150 oil changes/events That is a Porsche factory fitting... AKA a Cohline fitting. Drilling it for a drain plug is the modification. |
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| gereed75 |
Jul 28 2024, 10:51 AM
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#27
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Senior Member Group: Members Posts: 1,295 Joined: 19-March 13 From: Pittsburgh PA Member No.: 15,674 Region Association: North East States
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QUOTE(ClayPerrine @ Jul 28 2024, 12:07 PM) QUOTE(brant @ Jul 9 2024, 09:17 PM) QUOTE(Krieger @ Jul 9 2024, 07:43 PM) I am very happy I did this. It drains very quicky and isn't messy like disconnecting fittings. I use an aluminum washer from the valve cover as a sealing ring. That’s nice -12 or -16? Scratch that ….. pipe thread what size? Where did you find it? I’ve been splitting aluminum AN fittings in my line since 2005 without issues Probably over 150 oil changes/events That is a Porsche factory fitting... AKA a Cohline fitting. Drilling it for a drain plug is the modification. thats what i have. aluminum washer and safety wire ez peazy |
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| 930cabman |
Jul 29 2024, 06:30 AM
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#28
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Advanced Member Group: Members Posts: 3,618 Joined: 12-November 20 From: Buffalo Member No.: 24,877 Region Association: North East States
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After draining the oil from the sump (and getting 10 qts) and later opening up the line to the oil cooler, I collected less than 1/2 quart.
Is it worth it to insert a "T" fitting for less than 1/2 qt? My gut says no, leave well enough alone |
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