Question regarding Drain plug sizes
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Cruiser
Joined: Jan 2014
Posts: 113
Likes: 1
From: Northern Ky
Question regarding Drain plug sizes
Quick question:
I have a 2012 Ultra, getting ready to perform the 20,000 mile service on it. When I changed the oil at 15,000 miles , I clearly remember seeing somewhere what size socket to use on the drain plug. I have checked both my owners manual and my service manual for this info. And it is nowhere to be found in either . Drain plug size is not listed for the oil, tranny, or primary drain plugs. I must have gotten that info. From this forum. Not a big deal I will just experiment until I find the correct socket size. But it is bugging the crap out of me, that I can't find that info. In neither the owners manual or the service manual. Oh, one more thing, the derby cover uses Torx 27 correct? That info. Is not listed either.
I have a 2012 Ultra, getting ready to perform the 20,000 mile service on it. When I changed the oil at 15,000 miles , I clearly remember seeing somewhere what size socket to use on the drain plug. I have checked both my owners manual and my service manual for this info. And it is nowhere to be found in either . Drain plug size is not listed for the oil, tranny, or primary drain plugs. I must have gotten that info. From this forum. Not a big deal I will just experiment until I find the correct socket size. But it is bugging the crap out of me, that I can't find that info. In neither the owners manual or the service manual. Oh, one more thing, the derby cover uses Torx 27 correct? That info. Is not listed either.
Elite HDF Member
Joined: Nov 2013
Posts: 4,377
Likes: 646
From: Santa Clarita
Reach into the tool box...grab the one that fits...it should be the correct one. This is a quandary that has puzzled mechanics ad infinitum. This approach has worked 100% of the time. Trust me in this.
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Cruiser
Joined: Jan 2014
Posts: 113
Likes: 1
From: Northern Ky
Thank you Rollamo, I am writing that info. down in the inside cover of my service manual for future reference. This place is an amazing wealth of information. It seems as though I am always taking good info. away from here, but never contributing any useful info. Such is the life of the mechanically inept.
Road Warrior
Joined: Aug 2011
Posts: 1,510
Likes: 23
From: Connecticut
My advice:
Use a 5/8" wrench to take the drain plugs out, BUT --
Use a 1/4" allen wrench to put the drain plugs back IN.
I've seen post after post here from guys who stripped the plugs putting them back in, usually because they were determined to use a torque wrench to "get them right". Heh.
If you use the little allen wrench, just get it good and tight. The small wrench in your hand won't let you get it -too- tight (unless you're a ham-handed giant, of course!).
For the derby cover, take out the TORX bolts and then throw them away.
Go to the hardware store and get 5 stainless steel allen head bolts.
While you're there, pick up a tube of Permatex anti-seize.
Put a good coat of anti-seize on the allen bolts, and then use them to hold the derby cover on.
One other thought about changing the primary oil I picked up right here in the forum:
Always "break" the five derby cover bolts BEFORE you loosen the drain plug. You want to know you can get the cover off to refill before you drain the oil!
My opinion only.
Others will disagree.
Use a 5/8" wrench to take the drain plugs out, BUT --
Use a 1/4" allen wrench to put the drain plugs back IN.
I've seen post after post here from guys who stripped the plugs putting them back in, usually because they were determined to use a torque wrench to "get them right". Heh.
If you use the little allen wrench, just get it good and tight. The small wrench in your hand won't let you get it -too- tight (unless you're a ham-handed giant, of course!).
For the derby cover, take out the TORX bolts and then throw them away.
Go to the hardware store and get 5 stainless steel allen head bolts.
While you're there, pick up a tube of Permatex anti-seize.
Put a good coat of anti-seize on the allen bolts, and then use them to hold the derby cover on.
One other thought about changing the primary oil I picked up right here in the forum:
Always "break" the five derby cover bolts BEFORE you loosen the drain plug. You want to know you can get the cover off to refill before you drain the oil!
My opinion only.
Others will disagree.
Grand HDF Member
Joined: May 2008
Posts: 4,581
Likes: 669
From: Rolla
My advice:
Use a 5/8" wrench to take the drain plugs out, BUT --
Use a 1/4" allen wrench to put the drain plugs back IN.
I've seen post after post here from guys who stripped the plugs putting them back in, usually because they were determined to use a torque wrench to "get them right". Heh.
If you use the little allen wrench, just get it good and tight. The small wrench in your hand won't let you get it -too- tight (unless you're a ham-handed giant, of course!).
Use a 5/8" wrench to take the drain plugs out, BUT --
Use a 1/4" allen wrench to put the drain plugs back IN.
I've seen post after post here from guys who stripped the plugs putting them back in, usually because they were determined to use a torque wrench to "get them right". Heh.
If you use the little allen wrench, just get it good and tight. The small wrench in your hand won't let you get it -too- tight (unless you're a ham-handed giant, of course!).
There is an 0-Ring on the drain plugs for sealing.
No need for them to have any kind of sealant on them, or torqued down super tight.
For the derby cover, take out the TORX bolts and then throw them away.
Go to the hardware store and get 5 stainless steel allen head bolts.
While you're there, pick up a tube of Permatex anti-seize.
Put a good coat of anti-seize on the allen bolts, and then use them to hold the derby cover on.
Go to the hardware store and get 5 stainless steel allen head bolts.
While you're there, pick up a tube of Permatex anti-seize.
Put a good coat of anti-seize on the allen bolts, and then use them to hold the derby cover on.
Use the right (good quality) tools and they are just fine.
99.99% of the problems you read about, are caused by using the wrong size driver and/or cheap tools.
One other thought about changing the primary oil I picked up right here in the forum:
Always "break" the five derby cover bolts BEFORE you loosen the drain plug. You want to know you can get the cover off to refill before you drain the oil!
Always "break" the five derby cover bolts BEFORE you loosen the drain plug. You want to know you can get the cover off to refill before you drain the oil!
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