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Old 11-27-2016, 02:13 PM   #1
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It's common because the plug is aluminum and the bit is steel, then people use a ratchet to tighten it instead of a torque wrench calibrated to the proper torque.

Avoid it by buying a new drain plug for next time and use a torque wrench (the required torque is very little - 37 ft/lbs for stock plug).

Last edited by particlewave; 11-27-2016 at 02:16 PM.
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Old 11-27-2016, 02:36 PM   #2
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It's common because the plug is aluminum and the bit is steel, then people use a ratchet to tighten it instead of a torque wrench calibrated to the proper torque.

Avoid it by buying a new drain plug for next time and use a torque wrench (the required torque is very little - 37 ft/lbs for stock plug).
I use a torque wrench religiously, but the bit got stock on the removal. I will need to replace the drain plug but would like to avoid a second or repeated occurrence.

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Old 11-27-2016, 02:55 PM   #3
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Ciao As PW said the main issue is the hardened tool steel in the soft aluminum plug. The aluminum is possibly softer than frozen butter. So make sure you have a good quality hex socket and make sure that the socket is centered well in the plug before applying torque. Oh and use a new crush ring every time.
Now I am going to depart from the specs.... IMO I see no reason to torque that plug to 37 lb/ft. Even though that is spec. Consider that the LN plug is only torqued to 19 lb/ft. The plug only has to be tightened enough to not leak or back out. So I see no reason to go beyond ~25 lb/ft. Aluminum does not go plastic and stretch like steel does, Once yield torque is attained in aluminum it simply yields. Also now might be a good time to Upgade to a LN mag plug. Initially I thought that LN limited torque to keep that way too thin flange from breaking off. Then I came to realize that maybe they were smart and designed the flange to break off BEFORE the pan was damaged!! Genius. Plug is cheap, Pan not so much. As a note I only tighten my plug to 15 lb/ft. It has never leaked yet.

Last edited by 911monty; 11-27-2016 at 03:29 PM.
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Old 11-27-2016, 04:06 PM   #4
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Ciao As PW said the main issue is the hardened tool steel in the soft aluminum plug. The aluminum is possibly softer than frozen butter. So make sure you have a good quality hex socket and make sure that the socket is centered well in the plug before applying torque. Oh and use a new crush ring every time.
Now I am going to depart from the specs.... IMO I see no reason to torque that plug to 37 lb/ft. Even though that is spec. Consider that the LN plug is only torqued to 19 lb/ft. The plug only has to be tightened enough to not leak or back out. So I see no reason to go beyond ~25 lb/ft. Aluminum does not go plastic and stretch like steel does, Once yield torque is attained in aluminum it simply yields. Also now might be a good time to Upgade to a LN mag plug. Initially I thought that LN limited torque to keep that way too thin flange from breaking off. Then I came to realize that maybe they were smart and designed the flange to break off BEFORE the pan was damaged!! Genius. Plug is cheap, Pan not so much. As a note I only tighten my plug to 15 lb/ft. It has never leaked yet.
Monty, I agree the torque specs are too high; I actually went ~ 19 lb/ft but didn't replace the aluminum crush ring; think I'm good for a season of driving? I plan on driving during late spring through Fall with ~3000 miles before snow arrives. I will replace crush ring and upgrade to LN mag plug at next oil change if all goes well during the next 3000 miles

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Old 11-27-2016, 04:17 PM   #5
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Monty, I agree the torque specs are too high; I actually went ~ 19 lb/ft but didn't replace the aluminum crush ring; think I'm good for a season of driving? I plan on driving during late spring through Fall with ~3000 miles before snow arrives. I will replace crush ring and upgrade to LN mag plug at next oil change if all goes well during the next 3000 miles

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Well if you don't see a pool of oil under the car by late spring then I would think the old ring is ok. I bought 2 LN plugs and a new factory plus 10 rings as JIC stock. Did you get the bit out ok?
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Old 11-27-2016, 04:27 PM   #6
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Well if you don't see a pool of oil under the car by late spring then I would think the old ring is ok. I bought 2 LN plugs and a new factory plus 10 rings as JIC stock. Did you get the bit out ok?
No; I haven't attempted it; it is still on the drain plug
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