1985 GL1200 LE Maintenance - Rear/Final Drive Maintenance


Step-by-step tutorials on how to maintain and fix your GL1200
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Rednaxs60
Posts: 1886
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Location: Victoria, British Columbia, Canada
Motorcycle: 1985 GL1200 LTD
1995 GL1500 SE CDN Edition
2008 GL1800 (sold)
Ontario 1985 GL1200 LTD (sold)

Re: 1985 GL1200 LE Maintenance - Rear/Final Drive Maintenance

Post by Rednaxs60 » Thu Feb 25, 2016 10:59 am



Had a closer look at the pinion joint (the "cup" where the driveshaft mates with the final drive) and there are two holes/spaces where the pinion joint butts up against the pinion shaft. I had mentioned earlier that I did not expect to see gear oil in the pinion joint, but now think that gear oil is supposed to be in the pinion jot to lubricate the splines. Does anyone have a thought on this? Thinking I will put moly on the driveshaft spline on install, but don't think I have to. Cheers


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

Ernest

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Rednaxs60
Posts: 1886
Joined: Wed Nov 18, 2015 12:44 pm
Location: Victoria, British Columbia, Canada
Motorcycle: 1985 GL1200 LTD
1995 GL1500 SE CDN Edition
2008 GL1800 (sold)
Ontario 1985 GL1200 LTD (sold)

Re: 1985 GL1200 LE Maintenance - Rear/Final Drive Maintenance

Post by Rednaxs60 » Thu Feb 25, 2016 1:54 pm

Got a reply back from another forum and the spline on the driveshaft where it fits into the pinion joint is lubricated with the gear oil in the FD. The OEM manual does indicate that prior to mating the driveshaft and final drive, the splines on the driveshaft should be lubed with moly paste.

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

Ernest

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Rednaxs60
Posts: 1886
Joined: Wed Nov 18, 2015 12:44 pm
Location: Victoria, British Columbia, Canada
Motorcycle: 1985 GL1200 LTD
1995 GL1500 SE CDN Edition
2008 GL1800 (sold)
Ontario 1985 GL1200 LTD (sold)

Re: 1985 GL1200 LE Maintenance - Rear/Final Drive Maintenance

Post by Rednaxs60 » Thu Feb 25, 2016 2:32 pm

Organized my photos of the work so far. The FD unit and driveshaft came out quite easily (just had it out). FD on the bench:


Next removed the driveshaft from the FD. Picture shows the end with the original stop ring still installed:


Cleaned the driveshaft, removed and installed new oil seal, and lubed the splines on both ends:


I took the FD case apart as per instructions in the OEM manual. Removed the dust guard and bolts. The case split quite easily. Had to do this to remove the pinion shaft:




Next to clean the gear case. More to follow.
"When you write the story of your life, don't let anyone else hold the pen"

Ernest

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Rednaxs60
Posts: 1886
Joined: Wed Nov 18, 2015 12:44 pm
Location: Victoria, British Columbia, Canada
Motorcycle: 1985 GL1200 LTD
1995 GL1500 SE CDN Edition
2008 GL1800 (sold)
Ontario 1985 GL1200 LTD (sold)

Re: 1985 GL1200 LE Maintenance - Rear/Final Drive Maintenance

Post by Rednaxs60 » Sat Feb 27, 2016 12:10 pm

Cleaned up the gear case. There is a lot of build up over the years.


To get the pinion shaft out, I used some basic tools, punch, hammer and chisels. you can tap the pinion out this way, but be gentle. I used the punch against the pinion gear itself. Rotate the pinion gear so you don't strike the same tooth all the time. The gear should be case hardened and as such can take a bit of shock. This is where a "bigger hammer" is not the answer:


This next picture shows where I used the chisels to gently force the pinion shaft out. The chisel was between the case and the pinion gear:


Took the pinion in to a local 4X4 shop and had the new pinion bearing installed. To put the pinion shaft in, I used a punch and moved it continuously around the outside race until the bearing was seated in the case. Here is the pinion shaft back in:


Today I intend to get the FD unit back together. More pics to follow.
"When you write the story of your life, don't let anyone else hold the pen"

Ernest

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Rednaxs60
Posts: 1886
Joined: Wed Nov 18, 2015 12:44 pm
Location: Victoria, British Columbia, Canada
Motorcycle: 1985 GL1200 LTD
1995 GL1500 SE CDN Edition
2008 GL1800 (sold)
Ontario 1985 GL1200 LTD (sold)

Re: 1985 GL1200 LE Maintenance - Rear/Final Drive Maintenance

Post by Rednaxs60 » Mon Feb 29, 2016 1:11 am

Finished the FD and installed it today. Spent over two hours last night trying to install the FD and the bike won the first round. Went out today and had it in in approximately 10 minutes, go figure.

When I installed the driveshaft in the FD I noticed that the shaft with the new damper spring did not go in as far (see picture). You can see how far out the shaft is when the damper spring is seated in the FD unit:


The parts used were:

Pinion bearing: 91061-MT3-003 The manufacturer's P/N is QJ3/28VI.
Pinion bearing retainer oil seal: 91262-MG9-003
Pinion bearing retainer o-ring: 91359-MG9-003
Drive shaft oil seal: 91261-ME9-005
Drive shaft damper spring: 40215-ME9-003

This was a good maintenance project and I'm looking forward to the road test tomorrow. Cheers
"When you write the story of your life, don't let anyone else hold the pen"

Ernest

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Rednaxs60
Posts: 1886
Joined: Wed Nov 18, 2015 12:44 pm
Location: Victoria, British Columbia, Canada
Motorcycle: 1985 GL1200 LTD
1995 GL1500 SE CDN Edition
2008 GL1800 (sold)
Ontario 1985 GL1200 LTD (sold)

Re: 1985 GL1200 LE Maintenance - Rear/Final Drive Maintenance

Post by Rednaxs60 » Mon Feb 29, 2016 7:19 pm

Took the bike out for a road test this afternoon. Was pleasantly surprised to feel that almost all of the movement in the rear has gone away. The work I did on the FD seems to be doing a good job. There is still some movement when starting in first gear, and it is on my list to find. I have not taken the swing arm completely off to check the bearings - this can wait for the next time there are a couple of weeks of rain.

I checked the FD fluid on return and found it to be at the proper level.

I noticed that when I let off the throttle, it is quite smooth compared to before, very little additional vibration. Shifting also seems smoother. I did change to Rotella T6 synthetic oil as well.

Overall, very pleased with the results of all the maintenance I have done to this bike. Cheers
"When you write the story of your life, don't let anyone else hold the pen"

Ernest

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redial
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Re: 1985 GL1200 LE Maintenance - Rear/Final Drive Maintenance

Post by redial » Wed Mar 02, 2016 4:38 am

Excellent photos and narrative. I am pleased you have such a good result. Thanks for sharing.
Len in Kapunda

The world is not going to finish today, as it is already tomorrow in Australia and New Zealand, and other islands of foreign nations such as Guam and Samoa.

gervais
Posts: 252
Joined: Tue Oct 24, 2017 6:49 am
Location: riviere-bleue,quebec,canda
Motorcycle: GoldWing 1984 GL1200A Aspencade

Re: 1985 GL1200 LE Maintenance - Rear/Final Drive Maintenance

Post by gervais » Wed Jan 17, 2018 7:00 pm

Rednaxs60 wrote:
Sun Feb 14, 2016 11:27 pm
Finished up the final drive maintenance. Getting pretty good at taking the bike apart and putting it back together again.

Here is a picture of the right side - final drive and wheel installed:
Right Side back Together.jpg
I found it necessary to ensure the shocks were in lace before I started to tighten up on the saddlebag and upper shock bolts. Need the flexibility to move the shocks around.

Left side with brake caliper on - waiting for the new SS rear brake line:
Left Side Rear Back Together.jpg
Installed new slide collar in rear caliper. Checked the nomenclature for this slide collar. It is called a "slide collar" in the OEM service manual, but it is called a "sleeve" in the parts fiche. Have slide collars for the front calipers that will be done later. Keeping all the old parts since one never knows when you might need them again.:
Brake Sleeve.jpg
Here is the old and new rear brake lines. Used fuel hose around the new brake line where the frame securing clips are. Look forward to doing the front brake lines and the clutch hydraulic line as well:
Old-New Rear Brake Lines.jpg
New rear brake line installed. It is the same length as the original even though it does not follow rear disc cover:
New SS Rear Brake Line Installed.jpg

Used anti-seize on bolts, etc, and used the moly paste on sliding surfaces as well. One more post to do.
Ernest,what are those extensions that you have on your mufflers?
is it true what i heard that the passenger could smell exhaust while on the road??
my wife wont like it.
thanks
gervais

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Rednaxs60
Posts: 1886
Joined: Wed Nov 18, 2015 12:44 pm
Location: Victoria, British Columbia, Canada
Motorcycle: 1985 GL1200 LTD
1995 GL1500 SE CDN Edition
2008 GL1800 (sold)
Ontario 1985 GL1200 LTD (sold)

Re: 1985 GL1200 LE Maintenance - Rear/Final Drive Maintenance

Post by Rednaxs60 » Wed Jan 17, 2018 7:10 pm

Those aren't extensions, that is how the exhaust is on the '85 LTD - it's all one piece.
"When you write the story of your life, don't let anyone else hold the pen"

Ernest

gervais
Posts: 252
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Location: riviere-bleue,quebec,canda
Motorcycle: GoldWing 1984 GL1200A Aspencade

Re: 1985 GL1200 LE Maintenance - Rear/Final Drive Maintenance

Post by gervais » Wed Jan 17, 2018 10:08 pm

ok

could you send me 1-2 photos Ernest,so i would see how they made .

i could modify mine

thanks
gervais

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Rednaxs60
Posts: 1886
Joined: Wed Nov 18, 2015 12:44 pm
Location: Victoria, British Columbia, Canada
Motorcycle: 1985 GL1200 LTD
1995 GL1500 SE CDN Edition
2008 GL1800 (sold)
Ontario 1985 GL1200 LTD (sold)

Re: 1985 GL1200 LE Maintenance - Rear/Final Drive Maintenance

Post by Rednaxs60 » Wed Jan 17, 2018 11:30 pm

Will look. Have the exhaust from an Aspy on my '85 LTD out here in Victoria. The muffler on the '85 LTD in Ontario is original, will get pick for you.
"When you write the story of your life, don't let anyone else hold the pen"

Ernest

gervais
Posts: 252
Joined: Tue Oct 24, 2017 6:49 am
Location: riviere-bleue,quebec,canda
Motorcycle: GoldWing 1984 GL1200A Aspencade

Re: 1985 GL1200 LE Maintenance - Rear/Final Drive Maintenance

Post by gervais » Thu Jan 18, 2018 8:05 am

thank you
i have seen many "long extension" on sale but i did not undestood the utility except for beauty
but i read that the passenger could smell exhaust with the OEM system,the one like i have here and my wyfe is sensible
too odors

thanks
gervais

User avatar
Rednaxs60
Posts: 1886
Joined: Wed Nov 18, 2015 12:44 pm
Location: Victoria, British Columbia, Canada
Motorcycle: 1985 GL1200 LTD
1995 GL1500 SE CDN Edition
2008 GL1800 (sold)
Ontario 1985 GL1200 LTD (sold)

Re: 1985 GL1200 LE Maintenance - Rear/Final Drive Maintenance

Post by Rednaxs60 » Thu Jan 18, 2018 9:41 am

You can get extensions for the Aspy exhausts as well. Anywhere from $50.00 up. I was going to put the muffler from the bike in Ontario on my bike here, but I'm going to put the bike in Ontario back on the road. Have found some extensions for the Aspy exhaust and in the process of getting these.

Check out goldwing kings, it has a set of extensions for the Aspy exhaust. Will forward web sites as I find them.

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

Ernest

gervais
Posts: 252
Joined: Tue Oct 24, 2017 6:49 am
Location: riviere-bleue,quebec,canda
Motorcycle: GoldWing 1984 GL1200A Aspencade

Re: 1985 GL1200 LE Maintenance - Rear/Final Drive Maintenance

Post by gervais » Thu Jan 18, 2018 5:04 pm

ok
super i will be waiting for the links
thanks ernest



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