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  #1  
Old 09-06-2016, 11:41 PM
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Oil drain plug stuck

Well this is kind of weird but I had my drain plug basically fuse itself to my oil pan. I have been changing oil since I was 14 and this is the first time I have ever not been able to get the plug out. I have had a hard time before actually my 05 dodge magnum with same hemi I ended up having to replace it but never stuck so bad.

I took it into the mechanic figuring they could work some magic but no. They had some better tools to grab onto the head but it was not moving and something was going to break being probably the metal bung that is pressed into the cast plasticish oil pan then I would be out a car and $1500 by their account because they would have to drop the front diff to get to the oil pan and the pan itself isn't exactly cheap.

Anyways I told them to stop trying to get the plug out and I would figure something else out. I figured the plug could be drilled out enough to relieve whatever pressure was keeping it in there so tight so that was my plan. I got a new drain plug a better one that has a 5/8 head and also another rubber gasket actually in the threads of the bolt to help leaks, not that I have ever had a problem but why not splurge the 10 dollars.

So I planned to start with a small drill bit and work my way up continuing to drill the bolt hopefully relieving the tension so I could back it out without having to retap anything. I wouldn't try this if you don't feel comfortable with precision drilling just as a disclaimer. Its not a super easy angle to match. I had my shop vac sucking up as much metal shavings as i could between drill bits. Oh there is going to be a lot of oil to deal with after you get all the way through. I tried to drill without going all the way through till about a 1/4" bit then decided once I got any bigger than that it was going to be to hard literally to drill the bigger bits through. Long story long i had to drill almost the entire threads out before it let loose then I was lucky enough to be able to hand unthread it with no messed up internal threads.
See pics.

Just as an fyi i also had a fire extinguisher next to me and a lot of rags to soak up the oil that just would not make its way out till I started drilling every time. Also I ran about 3 quarts of oil through just to flush any metal that might have made its way into the oil pan.

I'm not telling anyone to do this by the way, but it might be an option if your against the rock and hard place that I was. Also After I changed the oil and drove for a couple days i replaced the new oil filter again in case it was catching some shrapnel. Time will tell how it does. For now she's back to normal and the engine sounds good.

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  #2  
Old 09-06-2016, 11:54 PM
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Re: Oil drain plug stuck

Damn that's crazy. Mine was stuck really bad when I first purchased from the dealer. Replaced the plug right away. I'll post a picture tomorrow of how beat up it was after I about lost my mind struggling with it.
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Old 09-07-2016, 12:53 AM
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Quote:
Originally Posted by German Overland View Post
Well this is kind of weird but I had my drain plug basically fuse itself to my oil pan. I have been changing oil since I was 14 and this is the first time I have ever not been able to get the plug out. I have had a hard time before actually my 05 dodge magnum with same hemi I ended up having to replace it but never stuck so bad.

I took it into the mechanic figuring they could work some magic but no. They had some better tools to grab onto the head but it was not moving and something was going to break being probably the metal bung that is pressed into the cast plasticish oil pan then I would be out a car and $1500 by their account because they would have to drop the front diff to get to the oil pan and the pan itself isn't exactly cheap.

Anyways I told them to stop trying to get the plug out and I would figure something else out. I figured the plug could be drilled out enough to relieve whatever pressure was keeping it in there so tight so that was my plan. I got a new drain plug a better one that has a 5/8 head and also another rubber gasket actually in the threads of the bolt to help leaks, not that I have ever had a problem but why not splurge the 10 dollars.

So I planned to start with a small drill bit and work my way up continuing to drill the bolt hopefully relieving the tension so I could back it out without having to retap anything. I wouldn't try this if you don't feel comfortable with precision drilling just as a disclaimer. Its not a super easy angle to match. I had my shop vac sucking up as much metal shavings as i could between drill bits. Oh there is going to be a lot of oil to deal with after you get all the way through. I tried to drill without going all the way through till about a 1/4" bit then decided once I got any bigger than that it was going to be to hard literally to drill the bigger bits through. Long story long i had to drill almost the entire threads out before it let loose then I was lucky enough to be able to hand unthread it with no messed up internal threads.
See pics.

Just as an fyi i also had a fire extinguisher next to me and a lot of rags to soak up the oil that just would not make its way out till I started drilling every time. Also I ran about 3 quarts of oil through just to flush any metal that might have made its way into the oil pan.

I'm not telling anyone to do this by the way, but it might be an option if your against the rock and hard place that I was. Also After I changed the oil and drove for a couple days i replaced the new oil filter again in case it was catching some shrapnel. Time will tell how it does. For now she's back to normal and the engine sounds good.
Heat just the plug with some map gas, then spray with some liquid wrench. Now apply your socket with a long a breaker bar. If necessary, use a two foot long pipe to slide over your breaker bar for added leverage. It will come loose.
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Old 09-07-2016, 11:36 AM
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Re: Oil drain plug stuck

Another option would be to suck the oil out from the top. Seems like diesel owners do that more commonly.

As a side note....Barne's HD did my last service on my Street Glide(and the Wife's FLD as well)....all three drain plugs should be torqued to 14-21ftlbs........found them at 55, 75, and just over 100.....all in aluminum pans! Then, I change the fluids on my Wife's bike......with a knurled extension on the socket....the engine oil plug could be spun out by hand.....and was covered with white pipe sealant!
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Old 09-07-2016, 12:18 PM
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Re: Oil drain plug stuck

I believe Jaguar now has their oil changed via vacuum. If you remove the drain bolt, you have to replace it. I just don't see how they get ALL the gunk out through that method.
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Old 09-07-2016, 01:06 PM
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Re: Oil drain plug stuck



---------- Post added at 05:06 PM ---------- Previous post was at 05:05 PM ----------

Pretty sure my neighbor said some prayers for me the night I handled this thing
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Old 09-07-2016, 04:45 PM
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Re: Oil drain plug stuck

I've had mine get "sticky" a few times on my 5.7, but not that bad. Dang!
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Old 09-07-2016, 08:31 PM
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Re: Oil drain plug stuck

An impact wrench, even a cordless one is often a better choice. Since they only attempt to turn the plug a very small amount with each impact they are less likely to round the head. The high speed impacts also help to jar things loose.

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Old 09-07-2016, 10:34 PM
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Re: Oil drain plug stuck

When I took it to the mechanic they put their baddest impact on it and nothing. It was impressive. They were also scared to use a lot of heat because I think they were spooked by the plastic oil pan. I thought heat and an impact would have done it maybe but I wasnt ready to put a bunch of heat to a potential fire hazard. Just didn't feel safe. Maybe it is but I was going to put that liability with someone else. If I burn down the Jeep momma wont let me work on it anymore.
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Old 09-08-2016, 01:41 PM
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Re: Oil drain plug stuck

If their baddest impact wouldn't break it loose, they need to go shopping. LOL Usually a good 1/2" impact will take most anything off. I break out the 1" when things get serious. However, on your situation, a 1" would make a horrible mess.
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Old 09-08-2016, 01:50 PM
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Re: Oil drain plug stuck

Quote:
Originally Posted by German Overland View Post
When I took it to the mechanic they put their baddest impact on it and nothing. It was impressive. They were also scared to use a lot of heat because I think they were spooked by the plastic oil pan. I thought heat and an impact would have done it maybe but I wasnt ready to put a bunch of heat to a potential fire hazard. Just didn't feel safe. Maybe it is but I was going to put that liability with someone else. If I burn down the Jeep momma wont let me work on it anymore.
If you do your own changes, get a small roll of plumbing teflon tape and put it on the threads before you put it back in. Two complete wraps around it in the direction of tight should help next time--replace every time removed.
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Old 09-15-2016, 08:31 AM
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Re: Oil drain plug stuck

Fit a QWIK Drain valve

https://www.fumotooildrainvalve.com/

Did this on my first oil change.......works great
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