Oil Drain Plug washer missing so what?

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Joined: Mon Aug 24, 2009 11:48 am
Location: Marquette, Michigan
Motorcycle: '85 GL1200A
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Oil Drain Plug washer missing so what?

Post by snowy.vtwin » Tue Aug 03, 2010 5:07 pm

This morning I was surprised to see such dark oil with just 1200 mi after a change noted in the service record. I had however, been running the pi$$ out of it with seafoam in the tank for the last 7 or 800 mi so I called the local honda stealer and they had the oem oil filter but had a problem finding the drain plug washer.

After I'm home and pulling out the drain plug I'm not seeing a washer on the plug. So I'm thinking maybe we don't really need one since I haven't been loosing/leaking any oil and the plug came out without any abundance of applied muscle, nor was it loose or wet. Checking out a diagram I see that one is called for, seen as item #43 in the boxed area of the diagram...

so wtf, does anyone else run without a washer?

I'll find one for next oilchange and watch for any leakage, it seems to me a hot aluminum block will keep that puppy nice and tight without any washer, or am I asking for trouble?

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Re: Oil Drain Plug washer missing so what?

Post by goldtr6c » Tue Aug 03, 2010 7:11 pm

The washer will be either an aluminum or copper piece. It is a VERY common size and I find it hard to believe the Honda parts man can't find one in his bins. Must be new. You can however go to any good autoparts store and just ask for a 14mm "squash" washer. I tend to lean towards the copper ones myself.

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Re: Oil Drain Plug washer missing so what?

Post by thrasherg » Wed Aug 04, 2010 9:43 am

Like you, if it's not leaking I would not be worried about the missing washer. I would try to add one at the next oil change, the washer has 2 functions, one is to prevent oil leaking past the threads and bolt head, the second is to prevent the drain bolt coming loose and unscrewing!! (the washer expands with engine heat and prevents the bolt coming loose) so it might be wise to recheck the bolt after a 100 miles or so to make sure it hasn't come loose, but if it did come loose you would probably start to see a few drops of oil on the floor when she is parked..


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