Drain Plug stripped

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Drain Plug stripped

Post by norseman47 » Sat May 05, 2012 4:28 pm

Removed the drain plug this morhing & found the case threads stripped. Can't seem to find anything local to fix the problem. I did manage to find a 12mm emergency plug. Would like a more permanent fix, but m14x1.5 seems special order only.

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Re: Drain Plug stripped

Post by RoadRogue » Sun May 06, 2012 1:21 am

I had the same problem when I bought my 1100 three years ago. I carefully retapped it to a 3/8 NPT (tapered pipe thread) and use a hex head plug to seal it up. its been through three riding seasons and at least 8 oil changes, no problems or leaks 8-)
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Re: Drain Plug stripped

Post by WingAdmin » Mon May 07, 2012 9:08 am

You can put a helicoil in it, but I've never liked helicoils for bolts that are going to be removed on a regular basis. I had a helicoiled drain plug on a car where the helicoil came out with the bolt.

I would re-tap the hole and use a new bolt, as RoadRogue mentioned. It's the best, most reliable fix. Make sure you don't get metal shavings in the engine, and flush the engine with some oil with the plug out when finished, to push out any metal that may have inadvertently gotten inside before buttoning things up.

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Re: Drain Plug stripped

Post by cbx4evr » Mon May 07, 2012 2:37 pm

Time-Serts are better than Heli-coils hands down.

"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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Re: Drain Plug stripped

Post by seabee_ » Mon May 07, 2012 4:44 pm

When you re-tap the hole for a bigger plug there is a trick I use on cars by putting a liberal coating of grease on the tap. This will trap most, if not all, metal shavings in the grease. Then flush your system as mentioned above to be sure to get all the shavings.
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Re: Drain Plug stripped

Post by norseman47 » Thu May 17, 2012 6:34 pm

The machinists at work agree, that a to a 3/8 NPT is the best way to go, as you can't strip the threads like a self tapping drain plug could.

Thanks all!

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