Help-ASAP 1987 gl1200i interstate final drive problem


Information and questions on GL1200 Goldwings (1984-1987)
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Dwaine624
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Motorcycle: 1987 GL1200I Interstate

Help-ASAP 1987 gl1200i interstate final drive problem

Postby Dwaine624 » Mon Jun 02, 2014 3:20 pm



I was going to put a new tire on my 1987 honda gl1200i interstate and when i pulled the tire off ---there was not a drop of moly paste or grease on the flange or final drive gears(splines) to the wheel and the splines were almost wore off!! I bought used 1985 final drive and flange off an aspencade with 48,000miles in perfect condition. will this work on my 87 interstate? It will arrive thursday and i want to get riding!
I have read alot about this and i have seen yes and no that it will work....i am confused!
84 thru 87 all models should work on the gl1200 ??? Right? ---Wrong?
If this wont work--i can send it back --so does anyone out there have a final drive and final flange with good splines -gears they would sell!
I am brand a spanking new member on this site and love all the info here and really need your help!
Just started riding again after 15 years and bought this bike last august and have enjoyed till now!
Thanks
Dwaine



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WingAdmin
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Re: Help-ASAP 1987 gl1200i interstate final drive problem

Postby WingAdmin » Mon Jun 02, 2014 3:42 pm

Dwaine624 wrote:I was going to put a new tire on my 1987 honda gl1200i interstate and when i pulled the tire off ---there was not a drop of moly paste or grease on the flange or final drive gears(splines) to the wheel and the splines were almost wore off!! I bought used 1985 final drive and flange off an aspencade with 48,000miles in perfect condition. will this work on my 87 interstate? It will arrive thursday and i want to get riding!
I have read alot about this and i have seen yes and no that it will work....i am confused!
84 thru 87 all models should work on the gl1200 ??? Right? ---Wrong?
If this wont work--i can send it back --so does anyone out there have a final drive and final flange with good splines -gears they would sell!
I am brand a spanking new member on this site and love all the info here and really need your help!
Just started riding again after 15 years and bought this bike last august and have enjoyed till now!
Thanks
Dwaine


The GL1200's, from 1984 to 1987 all use the same final drive, part number 41300-MG9-030. So a 1985 drive will bolt right on and work with your 1987 with no problems.

Dwaine624
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Motorcycle: 1987 GL1200I Interstate

Re: Help-ASAP 1987 gl1200i interstate final drive problem

Postby Dwaine624 » Mon Jun 02, 2014 3:47 pm

i just read this--is it true-
84 and 85 driven flange pins are different than 86 87 driven flange pins. They wheels will interchange fine between the year models as long as you get the driven flange with the wheel as the splines etc are the same only the pins on the flanges are different

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skier
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Re: Help-ASAP 1987 gl1200i interstate final drive problem

Postby skier » Wed Jun 04, 2014 8:41 pm

Any gl1200 wheel with matching flange will work on any gl1200 final drive.

Dwaine624
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Re: Help-ASAP 1987 gl1200i interstate final drive problem

Postby Dwaine624 » Mon Jun 09, 2014 3:30 pm

So the final drive from the 85 aspencade and the drive line all went together......
But the Final drive flange is slightly different on the 85 than on my 87. it has a smaller collar and longer collar where it fits into the wheel !! everthing else is the same -----------
SO--i assume i need a final drive flange from a 87 to fit my wheel and it will still work with a 85 final drive?
My bike has been down for 3 weeks and the weather is beatiful and i need to get riding-----
Does anyone have a final drive flange from a 1987 gl1200i interstate with good gears they want to sell?
any help -- i dont want to have to buy wheel !!


Thanks

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skier
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Re: Help-ASAP 1987 gl1200i interstate final drive problem

Postby skier » Mon Jun 09, 2014 4:45 pm

Yes, you need the flange to fit your wheel, or a wheel to fit your flange. I did a quick check on ebay, but didn't find one compatible with your wheel. I see several 84/85 flanges, but (as you know) they won't work with your wheel.

Dwaine624
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Re: Help-ASAP 1987 gl1200i interstate final drive problem

Postby Dwaine624 » Mon Jun 09, 2014 4:58 pm

Thanks for the info --so fast--i did the ebay search but 86-87 parts seem harder to find than 84-85 parts !
any ideas where i can find one to get my bike running ?

Dwaine624
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Re: Help-ASAP 1987 gl1200i interstate final drive problem

Postby Dwaine624 » Mon Jun 09, 2014 5:04 pm

Oh i forgot --i dont want to have to buy the wheel------i just put in new bearings and new Tire...!! the wheel is perfect condition !--just need the 86-87 flange ! and i am off and riding !

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skier
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Re: Help-ASAP 1987 gl1200i interstate final drive problem

Postby skier » Wed Jun 18, 2014 11:46 am


Dwaine624
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Re: Help-ASAP 1987 gl1200i interstate final drive problem

Postby Dwaine624 » Wed Jun 18, 2014 2:34 pm

Well...........the only part holding me up was finding a 1987 drive flange --to fit my wheel --i bought a final drive and flange off ebay in perfect condition from an 1985...with only 34,000 miles on it. The reason this whole mess started was because i needed to put on new Tire on. When i pulled the wheel off there was not a drop of moly paste there ---bone dry-- and the splines on the final and flange gear were paper thin--i was amazed it had not spun off completely.!! I just bought this august 2013 and and the guy seemed to maintain it--he was 70 and his wife would not ride with him any more and thats why he was selling it --he didn't want to say why she would not ride with him anymore?--anyway he had put a new windshield just changed the oil and filter and put in new fork seals -put on new timing belts --tuneup----but why no one ever put put any grease--moly paste on a very important part --is beyond me !!! It came with battery tender-- full cover --the original manual and tools --the bike body was in great condition a few scrapes and scratches here and there .... no oil leaking anywhere.........
so ................ i found a brand new final drive flange ----for a 1987 gl1200 in Alberta ,Canada--kind of expensive $215.00 plus $20.00 shipping and it is on its way --should be here june 19 thursday2014.
When i was looking for this part ebay was the only one that had alot --but only the 84-85--wont work --so my bike has been sitting a month waitng for parts and now today i check and there are 4 ---86-87 parts that will work in good shape---- for cheap--under $100.00 man i just want to get it working so i can ride !! maybe i am in just to big of a hurry ! I have learned alot about my bike thanks to all of you and alot of research !! I might send the expensive one back --just want to ride !! THANKS

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skier
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Re: Help-ASAP 1987 gl1200i interstate final drive problem

Postby skier » Wed Jun 18, 2014 4:41 pm

Being from northern state, I appreciate that riding season can be short. Hope you get it on the road soon!

Dwaine624
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Re: Help-ASAP 1987 gl1200i interstate final drive problem

Postby Dwaine624 » Wed Jun 18, 2014 5:20 pm

I am 63 and hope i can ride for many more years before i have to give it up !!

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skier
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Re: Help-ASAP 1987 gl1200i interstate final drive problem

Postby skier » Wed Jun 18, 2014 8:10 pm

I'll be 64 in August, and bought the Wing to ride for a couple of years. Am now thinking that I have quite a few more years left.

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Re: Help-ASAP 1987 gl1200i interstate final drive problem

Postby WingAdmin » Thu Jun 19, 2014 10:12 am

skier wrote:I'll be 64 in August, and bought the Wing to ride for a couple of years. Am now thinking that I have quite a few more years left.


You and the bike are just getting broken in! You've got many years of riding left! :)

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MNAspencade
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clarification of final drive swaps

Postby MNAspencade » Tue Sep 02, 2014 8:05 pm

I was planning on replacing my rear wheel bearings on my 85 Aspencade today until I found that some of the splines in the final drive and final shaft do not look good.
final drive flange splines
final drive flange splines

final drive splines
final drive splines


I have a 86 Intersate parts bike that I may be able to scavenge parts from (if they will work).

My questions are 1) will I have to swap the rim and tires or just the final drive AND the drive flange between the two. 2) will I need to swap any brake parts or just the rotor. 3) Are there any issues with swapping the final drive shaft?

Thanks for the clarification.
Attachments
chewed up teeth on the final drive shaft
chewed up teeth on the final drive shaft

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Right Winger
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84aspy

Re: Help-ASAP 1987 gl1200i interstate final drive problem

Postby Right Winger » Sun Sep 07, 2014 7:25 pm

I ran into the same delimma a couple years ago . Ended up buying a new one from Mother Honda OUCH :)

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skier
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Re: Help-ASAP 1987 gl1200i interstate final drive problem

Postby skier » Tue Sep 09, 2014 10:02 pm

MNAspencade, you can put the '86 final drive on your '85, but the flange will need to match the rear wheel. So, the '86 flange will need an '86-'87 wheel. I think you do have some life left on your '85 final drive/flange. If you don't put on a ton of miles, lube it up with the proper grease and ride it. Just my opinion. By the way, saw you were from Aitkin County. I used to have a lake cabin in Aitkin County, about 20 miles above Aitkin.

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MNAspencade
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Re: Help-ASAP 1987 gl1200i interstate final drive problem

Postby MNAspencade » Wed Sep 10, 2014 9:58 pm

I did lube it up w/ Moly60 (it was dry and rusty when I took it off) and am riding it for now but I want to get it fixed up proper. A good winter project along with a fork rebuild and a seat recover. Thanks for the clarification.

The country up here is beautiful - looking forward to the fall colors coming in.

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Re: Help-ASAP 1987 gl1200i interstate final drive problem

Postby swparis » Tue Jun 30, 2015 11:13 am

Digging up this thread because I'm experiencing the same issue as MNAspencade.
Just pulled off rear wheel for a new tire, and noticed some intense wear on the drive splines.
Wear is most apparent on the splines of the final driven flange (looks a little cleaner on the splines inside the final drive.)
I am prepping for ~1000mi trip next week, and wondering if i clean and apply moly like I should, can I expect this to last for the rest of the summer? hopefully there's a little bit of life left in these splines.
Don't really want to go about replacing final drive right now.... if I can get along until winter, I'll tear it apart then.
Attachments
note burring on coasting side (i think) of splines
note burring on coasting side (i think) of splines
splines on final driven gear don't look quite as bad
splines on final driven gear don't look quite as bad

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Re: Help-ASAP 1987 gl1200i interstate final drive problem

Postby WingAdmin » Tue Jun 30, 2015 11:19 am

That's pretty significant wear, and the burring you see is actually on the power side, not the coasting side. So it's getting slammed around a fair bit in there. The driveline lash this creates is going to accelerate wear every time you get on and off the power.

You're probably OK for 1,000 miles if it's lubed up and put back together, but I'd start shopping now.

swparis
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Re: Help-ASAP 1987 gl1200i interstate final drive problem

Postby swparis » Tue Jun 30, 2015 11:54 am

Thanks for the prompt reply, WA.
Going to put everything back together and hope for the best on the trip next week.
Will start shopping for a used final drive.
I've read that some people use a 1500 final drive unit on a 1200 with a little modification, but i think I'll try to stick with 1200 parts if I can find one that looks decent.

Hopefully the splines throughout the rest of the drivetrain aren't as chewed up as these :/

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Re: Help-ASAP 1987 gl1200i interstate final drive problem

Postby swparis » Tue Jun 30, 2015 5:17 pm

one additional question:
how far back along the drivetrain can the forces from the lash be traced?
If I'm seeing chewed up splines at the final gear, surely I should see some damage on u joint splines from spline faces bashing into each other as throttle rolls on/off.
should i also expect accelerated wear on output shaft, trans gears, input shaft, and further back through the motor?

I want to ride but also don't want to cause damage to engine internals




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