Changing Final Drive Oil


Information and questions on GL1100 Goldwings (1980-1983)
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pschweitzer
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Changing Final Drive Oil

Postby pschweitzer » Tue Jun 30, 2015 2:10 pm



Boy was I right. Final drive oil looked more like crude oil than gear oil. Anyway my question, does the drain bolt have a crush washer or gasket? There was a washer in the screen of my drain pan, but it was loose on the bolt so it could have been in there from something else (been doing a lot of small engine maintenance). I have to go to the auto store anyway so will pick up a couple of 8 mm crush washers. Honda diagrams were not that clear.



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spiralout
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1996 GL1500 SE

Re: Changing Final Drive Oil

Postby spiralout » Tue Jun 30, 2015 3:13 pm

I can't remember whether mine had a washer or gasket.

#23 is GASKET (8MM)
90471-580-000 if that tells you anything...

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roadwanderer2
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Re: Changing Final Drive Oil

Postby roadwanderer2 » Tue Jun 30, 2015 4:09 pm

from what your diagram shows, your looking for part # 34 which Honda's OEM part number is 91302-001-020...........Honda is calling this part a rubber O-ring, and its size is 30.8mm.

this "washer" IS a rubber 0-ring. i just checked mine and it has the same thing on it. it sits down into the bolt. if you cant find it locally, you can find it on eBay. here is a link to the part your looking for....http://www.ebay.com/itm/Honda-91302-001 ... 99&vxp=mtr

stuart.

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spiralout
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Re: Changing Final Drive Oil

Postby spiralout » Tue Jun 30, 2015 5:00 pm

roadwanderer2 wrote:from what your diagram shows, your looking for part # 34 which Honda's OEM part number is 91302-001-020...........Honda is calling this part a rubber O-ring, and its size is 30.8mm.

this "washer" IS a rubber 0-ring. i just checked mine and it has the same thing on it. it sits down into the bolt. if you cant find it locally, you can find it on eBay. here is a link to the part your looking for....http://www.ebay.com/itm/Honda-91302-001 ... 99&vxp=mtr

stuart.


He said drain bolt, not fill cap, silly

pschweitzer
Posts: 74
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Location: Warrenton, Virginia
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Re: Changing Final Drive Oil

Postby pschweitzer » Tue Jun 30, 2015 5:21 pm

Stuart,
I did mean the drain bolt and I think it is #23 which says gasket, whatever that means. Come to think of it I don't think I checked the o-ring so thanks for the reminder. Autozone didn't have any washers so I'll either try the local Honda dealer (although they usually have nothing that I need) or order from Bike Bandit or equivalent.

I want to bring this bike down to Houston on my next trip back home, but since I live in an RV community down there I really don't have the garage and tools I have at home. I'm trying to do as much maintenance and troubleshooting as I can before I trailer the old girl south. I do have a friend who will lend me garage space but I don't want to wear out a welcome with a bunch of tinkering (although tinkering makes me happy).

Pat

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roadwanderer2
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Re: Changing Final Drive Oil

Postby roadwanderer2 » Tue Jun 30, 2015 5:33 pm

spiralout wrote:
roadwanderer2 wrote:from what your diagram shows, your looking for part # 34 which Honda's OEM part number is 91302-001-020...........Honda is calling this part a rubber O-ring, and its size is 30.8mm.

this "washer" IS a rubber 0-ring. i just checked mine and it has the same thing on it. it sits down into the bolt. if you cant find it locally, you can find it on eBay. here is a link to the part your looking for....http://www.ebay.com/itm/Honda-91302-001 ... 99&vxp=mtr

stuart.


He said drain bolt, not fill cap, silly


ok, my bad, im sorry, i read it wrong, but hey, at least you'll know what size rubber O-ring you'll need if and when you need one :oops: .......ok, the DRAIN BOLT, has a "washer" and the Honda OEM # is...90471-580-000 and you can find it at http://www.partzilla.com now can i go eat my bbq ribs? lol.

stuart.

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wingman12
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Re: Changing Final Drive Oil

Postby wingman12 » Tue Jun 30, 2015 7:28 pm

you can use the washer you found in your pan, they are not like crush washers and there is no internal pressure. I have changed my final drive at least 5 times since I had the bike and is still does not leak. I would flush out the final drive before putting in new oil with either parts cleaner and spin tire in first gear at idle for 5 or 6 minutes and drain, let dry out over night and install new oil next day, cleans out all of the old accumulated crud that has build up in there. :D :D

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WingAdmin
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Re: Changing Final Drive Oil

Postby WingAdmin » Tue Jun 30, 2015 10:49 pm

wingman12 wrote:you can use the washer you found in your pan, they are not like crush washers and there is no internal pressure. I have changed my final drive at least 5 times since I had the bike and is still does not leak. I would flush out the final drive before putting in new oil with either parts cleaner and spin tire in first gear at idle for 5 or 6 minutes and drain, let dry out over night and install new oil next day, cleans out all of the old accumulated crud that has build up in there. :D :D


I let the old gear oil drain, then I spray brake cleaner in the fill hole while spinning the rear wheel. This washes all remnants of the old gear oil out. After waiting for the brake cleaner to evaporate, I squirt gear oil in the fill hole while again spinning the rear wheel, to wash out anything else that might be in there. Once I get good, clean oil running out the drain hole, I install the drain plug and fill it to spec.

pschweitzer
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Joined: Mon Jun 10, 2013 6:03 pm
Location: Warrenton, Virginia
Motorcycle: 1983 Goldwing Interstate GL1100I

Re: Changing Final Drive Oil

Postby pschweitzer » Thu Jul 02, 2015 4:26 pm

BTW Stuart...After 4 years in Saudi the mention of pork makes me salivate. I actually have a tee shirt that says "say no to drugs...Say yes to Bacon"

Pat

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roadwanderer2
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Re: Changing Final Drive Oil

Postby roadwanderer2 » Thu Jul 02, 2015 5:11 pm

i'll eat to that OINK OINK :)

stuart.




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