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2nd plug in oil pan?


doug cooper

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While changing the oil on my 997 TT I removed a second [drain] plug from the oil pan near the sway bar[forward on the sump]. As soon as I removed this plug I new it was incorrect. Lurking behind that plug was a round metal pin inserted in a long spring with a little piston/plunger on the end. I replaced that assembly just as I had removed it.

It looked like a pressure spring for an oil pump.

Is there any critical re-assembly procedure on the spring and plunger or a specific torque setting for the plug?

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Hi Doug.... I've found what I believe to be the screw, spring, and piston you describe on my own GT3 and in the parts listings. It is probably an oil pressure relief valve to control over pressure in the oiling system. If it went back in the way it came out, there should be no problem. You probably already know, there ARE two places that you drain oil from that engine. The sump drain in at the bottom of the crankcase a few inches rearward of the plug you mistakenly removed on the left side of case....and the other is the large plug that is screwed in vertically in the bottom of the oil tank on the right/passenger side of the engine.

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While changing the oil on my 997 TT I removed a second [drain] plug from the oil pan near the sway bar[forward on the sump]. As soon as I removed this plug I new it was incorrect. Lurking behind that plug was a round metal pin inserted in a long spring with a little piston/plunger on the end. I replaced that assembly just as I had removed it.

It looked like a pressure spring for an oil pump.

Is there any critical re-assembly procedure on the spring and plunger or a specific torque setting for the plug?

Thanks Guys! I contacted a tech at my local porsche dealer this afternoon and he was kind enough to give me the torque setting on that plug. In case anybody does that same thing in the future the proper torque setting is 44 ft lbs!

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