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Rear shock oil chainge?
I have factory shocks on the rear or my 84 Interstate. They hold air reasonably well (maybe loosing 5 PSI in a month of riding). However, they don't have much dampening to them. I figured that the oil might be as old as the wing. How can I replace the oil? I am hoping to tear off as little as possible. Also, what kind of oil do I use? I have some 15w fork oil left over from the front end job, seems like it might be appropriate. Thanks!!!
bamf_shadow
1984 GL1200I
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#1 04-22-2007, 06:44 PM,
You need to fabricate a special compressor tool to unload the spring pressure from the rear shocks so that you can remove the retainer clip that keeps your shocks together. Some guys fabricate special devices for the job and others guys take their shocks down to their local dealerships to have the springs unloaded. In any case whatever you do just be careful because you can be hurt if you are unaware.
Ed (Vic) Belanger - 1954-2015
Founder of gl1200goldwings.com

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#2 04-23-2007, 05:17 AM,
Hi,
I'm just about to tackle the same problem. I have the instructions from the manual on the proper procedure, if you haven't done this yet, and can email them to you.
I'm going to build a proper press to use with my hydraulic jack, so I don't get maimed or killed in the process of unloading/reloading the springs.
Where are you located?
regards,
dank
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#3 07-26-2007, 07:56 AM,
Sure send your plans please. I'm in Leamington, Ontario, Canada.
Ed (Vic) Belanger - 1954-2015
Founder of gl1200goldwings.com

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#4 07-26-2007, 02:13 PM,
Hello,
Sorry, I've been away from the computer for a while. I ended up buying a 12 ton press at Princess Auto, for $99. and it did the job beautifully. Now for the bad news... my bottoming symptoms are slightly better, but I still bottom out, although not as violently as before.
Question: The manual indicates ATF for the shocks. I suspect that the valving in the dampening unit are worn out, and heavier oil won't make a difference... does anyone have any experience on this subject?
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#5 09-27-2007, 05:53 PM,
OK, just a dumb question here.

If the original shocks have seen their better days, why not just upgrade to a high quality aftermarket suspension??

I'm not trying to be a jerk here......just very curious. Is it a matter of keeping things "stock"? I know the new suspension systems are not cheap, but it sounds like rebuilding the stock units can be a real pain.

Thanks for any info.....
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#6 09-27-2007, 06:30 PM,
Hi,
No dumb question at all. I am trying to keep the cost down, as I've already spent way too much rebuilding this bike. The bike has 80K miles on it.
There is a pair of new aftermarket shocks on eBay, (no air), for $69 US, that may be the solution.
It's just that if replacing the springs will do the trick, I don't mind doing the work, and being to keep the bike stock.
Cheers!
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#7 09-27-2007, 07:10 PM,
Myself, I would have tried 15 weight shock oil in the shocks to test the difference before upgrading.
Ed (Vic) Belanger - 1954-2015
Founder of gl1200goldwings.com

Reply
#8 09-28-2007, 06:17 AM,
admin Wrote:You need to fabricate a special compressor tool to unload the spring pressure from the rear shocks so that you can remove the retainer clip that keeps your shocks together. Some guys fabricate special devices for the job and others guys take their shocks down to their local dealerships to have the springs unloaded. In any case whatever you do just be careful because you can be hurt if you are unaware.

Why do you need to take the shocks apart to change the oil?
just release the air pressure, push the seal in a touch,
remove the clip. tie a rag around the shock,
put it in a bucket.
apply airpressure to remove the seal.

Douce
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#9 09-28-2007, 01:21 PM,
You're right on Douce, my head was into another year and model.
Ed (Vic) Belanger - 1954-2015
Founder of gl1200goldwings.com

Reply
#10 09-28-2007, 01:59 PM,


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