linderpat

Is it fvken possible to change the GD oil without stripping that POS aluminum plug? It happens just about every time, then it's off to the indy shop for a drill out. Then he over tightens it and whola - stripped again. I'm sure he tightens to the torque spec, because he is an experienced Porsche guy. I just can't figure it out.

Are there better more robust drain plugs out there? (and the LN plug sucks too - had one, stripped it and sent it back - if I'm going to strip plugs, I'd rather strip the cheap by comparison Porsche OEM plug). Also, are there any suggestions for a tool to remove a stripped plug? What about drill-out tips? TIA guys.

ADias

What is the problem? Do you use the correct 8mm hex bit to untorque the plug, making sure the bit is fully inserted before you rotate the wrench?

Tool size and torque values for 997.2:

Drain plug 8mm use male allen/hex bit/wrench set at 37lbf.

Filter cap use 36mm socket set at 19 lbft.

Aeromat209

If you read the post below this about Clutch oil service you will find that number of 2009 997.2 's had oil pan issues that kept stripping the oil plug and needs to be replaced for additional 300-350 in cost to correct the problem . I have a 2009 997.2 with 110 k and have not had the oil plug strip issue .
Sorry for the frustration you have had !!!

ADias

Sorry but the post you refer to relates to the PDK pan cover for certain cars (limited series) equipped with PDK, nothing to do with the oil pan cover. And in any case, the OP's car is a 2005 997.1. The problem is not his oil pan cover.

TheBruce

I think you need a new indy or a new torque wrench :-)

lurchphil

This is the plug I have used on three 997's. It works like a charm: https://www.ebay.com/p/Porsche-911-9...yABEgIwefD_BwE

Petza914

I use the LN plug on both my 997s and have done multiple oil changes without issue. Torque spec on that plug is 19 ft. lbs. and I use a new aluminum crush washer each time.

That ebay plug looks to be steel. Not the best idea to use a steel plug in an aluminum pan as which one do you think will give first if over tightened?

doclouie

Yes 19 foot pounds and make sure the Allen head bottoms out in the hole before doing anything or it will strip.

linderpat

Yes I use the right size bit, and of course I seat it all the way in. Other than it being over-torqued, I do not know why they always strip, making a simple, easy, fast job a big problem. I'm going to switch to that steel plug.

doclouie

It is being over torqued if you are above 19 foot pounds.

https://lnengineering.com/billet-al-...e-s-turbo.html

C4SDayton

Put on a Fumoto valve and be done. The chance it ever gets struck while driving is remote.

Petza914

I like Fumoto drain valves, but not for a 997 application for a couple reasons.

1. It sticks straight down and becomes the lowest thing on the car. A shredded tire gator could easily snap it off making the vehicle lose all its oil and stranding you. Maybe if you put the LN Engineering stainless deep sump skid plate on (without a deep sump), you would provide adequate protection for it.
2. The OEM oil pan has a cut out in the side of the threads bung that thrle drain plug screws into in order to get more of the oil out during the drain process. Threading the drain valve in will cause you to leave at least 1/2 of oil in the bottom of the sump at every oil change, including any particles that are too large to fit through the ball valve in the drain valve.

I used to use one but changed to the LN drain plug for the above reasons. I actually gave them to Jake for when he's breaking in and test running engines. One of the two had scratches on the bottom where it had impacted something - lucky it didn't shear off during that event, whenever it was.

MexicoBlueTurboS

Especially at these low levels of torque you want to make sure your torque wrench is calibrated and correct.

I check the luggage scale first against a known weigh like a 10 lb. dumbbell then calibrate your wrench with the luggage scale.

Lastly store your wrench at lowest setting when done using it for the same reason you rotate your clips on a weekly basis.

KNS

Air cooled 911s have had aluminum cases and steel drain plugs since the 1960s, you never hear about anyone stripping them out. On the air cooled 911s I’ve owned I just tighten down by hand, the’ve never stripped, leaked or fallen out.

Not sure why Porsche used such a wonky set up on the water cooled cars.

Wayne Smith

I had a plug strip once. It was my own fault for not inserting the hex fully into the plug. It had been a long day.

Removal was easy ... Use a chisel with hammer along the side of the plug and it will break free immediately. Removal time is the same as using a wrench with a good plug.

Porsche specs 37 lb ft but 19 works fine.