Stripped Oil Drain Plug


Information and questions on GL1100 Goldwings (1980-1983)
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bcstover
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Stripped Oil Drain Plug

Postby bcstover » Sat Mar 30, 2013 5:47 pm



I have a 1981 Goldwing 1100 that I just bought. Went to change the oil and found out I have a stripped drain plug. Can anybody give me any ideals on how to fix it ?? Thanks


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Re: Stripped Oil Drain Plug

Postby cbx4evr » Sat Mar 30, 2013 8:40 pm

"It´s a friggen motorcycle, it´s not supposed to be comfortable, quiet or safe. The wind noise is supposed to hurt your ears, the seat should be hard and riding it should make you s**t your pants every now and then. "

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themainviking
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Re: Stripped Oil Drain Plug

Postby themainviking » Sun Mar 31, 2013 5:46 am

As the oil pan does not have a heck of a lot of room for thread repair, you may be stuck with getting a self tapping over sized pan bolt, which would cut itself some new threads. As long as you did not over tighten it, this could be a permanent solution.

See here: http://tinyurl.com/d8my83w

It is a .pdf file, so you should save or open it.
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Re: Stripped Oil Drain Plug

Postby WingAdmin » Sun Mar 31, 2013 4:00 pm

The 1100 drain bolt doesn't go into an oil pan, it goes into the front block. Rather than trying timesert or helicoils, just drill it out and re-tap it, to fit a slightly larger bolt.

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Re: Stripped Oil Drain Plug

Postby wingsound » Sun Apr 07, 2013 8:28 am

I had the same problem with my 81' 1100. I drilled and tapped for a larger size plug however the hole is a bit lower than the bottom of the case, so the tap ran uphill and I could not get a good hole or fit.
I eventually determined that the front case cover (which houses the drain plug) was pretty easy to remove. I then had someone "weld in" the hole, and machine the hole back to original spec.

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bcstover
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Re: Stripped Oil Drain Plug

Postby bcstover » Sun Apr 07, 2013 9:43 am

I have a good mechanic. He is pretty sure he can get it fixed with a heli coil . Crossing fingers. He just left because he got the wrong size. He will be back next weekend so he did a temp fix so I could ride this week. Thanks for your reply :D
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RoadRogue
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Re: Stripped Oil Drain Plug

Postby RoadRogue » Sun Apr 07, 2013 10:58 pm

I retapped mine with a 3/8npt and used a allenhead plug found in any plumbing supply store. Because plumbing pipe threads are a tapered thread it is easy to get a good seal without having to crank down hard on it. 8-)
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seagreen13
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Re: Stripped Oil Drain Plug

Postby seagreen13 » Fri Apr 26, 2013 10:16 pm

My 83' interstate has a stripped drain plug as well. When I took the bike accross the country last summer I had to change my oil three times with this. Each time it seemed to get more sloppy than the last. What I did to alleviate this was place rubber o rings around the actual bolt and very carefully and very slowly retightened the bolt. This was a quick but not permanent fix and it actually did not leak any oil.

Now, I have been back home for some time and spring is finally here and I'm overdue for an oil change. I bought the transmission cover itself from a junkyard for 25.00$ that is in great shape. I'm debating on whether to put it on, considering I just went through the water pump DIY section. Quite lengthy, but not terrible. My thoughts now are should I buy another water pump and replace it when I do this or just tap the existing hole. I've heard of timeserts but I am neither experienced with those or tapping in general.

Oh what choices we have.

ALl the best guys/gals. Be safe riding.




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