6-cyl folks - oil line check valve |
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6-cyl folks - oil line check valve |
Optimusglen |
Jul 24 2021, 09:16 AM
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#1
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Senior Member Group: Members Posts: 912 Joined: 26-February 16 From: Minneapolis Member No.: 19,709 Region Association: Upper MidWest |
I'm in the process of installing my 6 and have come to the oil lines. My entire setup is planned as AN-12, and I see options for AN12 one-way check valves from a number of retailers.
One example: https://www.jegs.com/i/JEGS/555/150024/1000...KEaAnyVEALw_wcB I have seen the threads on here and on Pelican about the Rothsport valve, but the price and the lack of AN fittings have drawn me away from it. Is there some other reason that someone should fork out 300 for the Rothsport unit? |
jd74914 |
Jul 26 2021, 10:01 AM
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#2
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Its alive Group: Members Posts: 4,782 Joined: 16-February 04 From: CT Member No.: 1,659 Region Association: North East States |
The Porsche engineers disagree with you. They use it on the GT3 and Rothsport is no slouch when it comes to Porsche engine building. I knew someone would take issue with that statement. All you need to know is any decent FMEA will have 'check valve failed closed' on it. You can't get around that, though you can debate the severity and occurrence rates. I don't know that you can say the Porsche engineers disagreed with the premise-we don't know what their requirements were. A requirements driver may have been that people who spend $200k on a GT3 don't want to see smoke on startup, or that can't be risked from for emissions compliance, who knows. So with say 2000 GT3s produced, and a 99.9% valve reliability rate means maybe 2 [potentially] damaged engines. Not so bad on from warrantee cost perspective. They may even have engine control logic to prevent revving from idle with loss of oil pressure at some time duration from startup which is when you see 99% of check valve issues. All situations different from what you see in the aftermarket. |
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