Snapped final drive oil drain bolt. now what do I do?


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sirgkm
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Location: Sudbury, ON, Canada
Motorcycle: 1986 Honda Goldwing Aspencade GL1200

Snapped final drive oil drain bolt. now what do I do?

Post by sirgkm »



:oops:

It was a beautiful sunny day, first in weeks. I decided to get Goldie, my 86 Aspy, ready for the cross Country trek. Plugs changes, no problem. Engine oil changed, no problem. Final Drive oil changed, BIG PROBLEM! The old bolt sheared off leaving half inside, and not enough of a seal to keep all oil in. Poor Goldie is bleeding red gear oil. Brings tears to this 44 year old's eyes. Any advice?



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Viking
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Re: Snapped final drive oil drain bolt. now what do I do?

Post by Viking »

You could try drilling a centered hole in the bolt, deep enough to allow an EZ out to get the bolt out. Then get a new bolt. Careful tho, cause that bolt might be loose anyway, and you do not want to drop it down inside the drive. If it will move at all, then you need to drill it with a reverse drill bit if you can find one, and with your drill running backwards. If the bolt is loose, you may be able to back it out with a smaller bolt with a rubber brake bleeder cap on the end. Just a couple of things I would try.

https://www.amazon.ca/Irwin-30520-5-Pie ... ingdocs-20 left handed drill bits from Amazon.ca. Canadian Tire may have them also, as well as Acklands/Grainger.
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Rednaxs60
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Re: Snapped final drive oil drain bolt. now what do I do?

Post by Rednaxs60 »

A little more work, but you can take the FD off, pop off the gear case cover, and do it this way. There is no gasket for the gear case cover, just need a light coating of permatex or similar sealant.

Here is picture of the FD internal showing fill-drain holes/bolt:


If you go this way, be careful with disassembly as there are shims, etc, that you have to account for.

If you go the easy-out route and do drop the broken end of the drain bolt into the FD, you will have to do this anyway.

Good luck.

Cheers
"When you write the story of your life, don't let anyone else hold the pen"

Ernest

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boonny
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Re: Snapped final drive oil drain bolt. now what do I do?

Post by boonny »

themainviking wrote:
Mon Jul 03, 2017 8:27 pm
https://www.amazon.ca/Irwin-30520-5-Pie ... ingdocs-20 left handed drill bits from Amazon.ca. Canadian Tire may have them also, as well as Acklands/Grainger.

Crappy tire doesn't have them. If you have a tooltown nearby you might get lucky https://www.tooltown.ca/search.php?mode=search&page=1 good luck. A quick search and you do have a tooltown near you, 450 Notre Dame Avenue . If they have them in stock. Have fun.
Last edited by boonny on Mon Jul 03, 2017 11:51 pm, edited 1 time in total.

sirgkm
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Re: Snapped final drive oil drain bolt. now what do I do?

Post by sirgkm »

Thank you all so much for your quick replies. I'll try Tool Town and the "Reverse out" technique. If that fails, then it's hub removal by the pros. :)

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Rednaxs60
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Re: Snapped final drive oil drain bolt. now what do I do?

Post by Rednaxs60 »

When you mention "the pros", I trust you mean yourself. :P

If you have a garage available to you, removing the rear wheel and FD is a good DIY project. Good time to take the prop shaft out and lube the splines with moly paste (at least 60% moly content - I use Loctite LB8012 that has a minimum of 70% molybdenum content). The best time I've done from start to having the FD sitting on the bench is one hour, most times it's a couple of hours taking my time, another hour for the FD, then putting it back on. Good weekend project.

Hope you get the left handed drill bit and the remaining drain bolt piece comes out easily, take the simplest route first.

Cheers
"When you write the story of your life, don't let anyone else hold the pen"

Ernest

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grand rouge
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Re: Snapped final drive oil drain bolt. now what do I do?

Post by grand rouge »

Just a thought re the snapped bolt. For sure, the left / reverse drill bit / extractor preferred. Have a couple of sets in my tool box...made by Irwin...another by OEM....have never needed em... Oh....my thought.....seems to me that the bolt threads must be really really tight.....dis-similar metals corrosion, cross threaded etc.........anyway if so tight that bolt head broke off, drill it with whatever bit you have then go for the extractor. Could even start of with a small hole..ideally it is centered, work up to the 8 or 10 MM..or whatever size the bolt threads are....and you will be fine. Any metal particles that find their way inside can be flushed away with fresh gear oil. Could even get a magnet in through the fill hole.

sirgkm
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Re: Snapped final drive oil drain bolt. now what do I do?

Post by sirgkm »

WOOHOO! broken bolt is out, new one is in and drive oil up to level. With new front tire on, new plugs and air filter, new oil and Goldie washed, waxed and polished, we are ready for our Cross Country trip! Thanks All! :D

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Viking
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Re: Snapped final drive oil drain bolt. now what do I do?

Post by Viking »

sirgkm wrote:
Sun Jul 09, 2017 10:50 pm
WOOHOO! broken bolt is out, new one is in and drive oil up to level. With new front tire on, new plugs and air filter, new oil and Goldie washed, waxed and polished, we are ready for our Cross Country trip! Thanks All! :D
Happy to hear it. Was it indeed loose enough to turn out with a rubber tipped pencil or the like, or did you have to do surgery? Hope your trip is great.
It ain't about the destination - it's all about the journey

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sirgkm
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Re: Snapped final drive oil drain bolt. now what do I do?

Post by sirgkm »

Rubber ripped pencil did the trick! :lol:

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Rednaxs60
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Re: Snapped final drive oil drain bolt. now what do I do?

Post by Rednaxs60 »

Good engineering work on your part. Enjoy your trip. When are you coming out?

Cheers
"When you write the story of your life, don't let anyone else hold the pen"

Ernest

sirgkm
Posts: 16
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Location: Sudbury, ON, Canada
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Re: Snapped final drive oil drain bolt. now what do I do?

Post by sirgkm »

:D :lol: Ernest, that question could have more than one meaning for some ;). I leave Sudbury area tomorrow and head for St.John's. I'll splash Goldie with the Atlantic water, then head west. Keep an eye on my gallery for pics!

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Rednaxs60
Posts: 2347
Joined: Wed Nov 18, 2015 12:44 pm
Location: Victoria, British Columbia, Canada
Motorcycle: 1985 GL1200 LTD
1995 GL1500 SE CDN Edition
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2008 GL1800 (sold)
Ontario 1985 GL1200 LTD (sold)

Re: Snapped final drive oil drain bolt. now what do I do?

Post by Rednaxs60 »

Touche - Will keep an eye on your trip. Start a new thread and keep us informed. There is an IBW thread on NGW and a young fellow on a '77 1000 did over 11,000 miles in 10 days and came in 17th. GWs do give trouble free motoring. The bike is quite a looker as well. https://ngwclub.com/forum/viewtopic.php?f=13&t=63422

Safe riding and good luck.

Cheers


"When you write the story of your life, don't let anyone else hold the pen"

Ernest

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