Disassembling rear shock - BMW Luxury Touring Community
 
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post #1 of 6 Old Feb 13th, 2009, 7:50 pm Thread Starter
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Disassembling rear shock

I brought my stock shock to a shop today to see if they could install my new Hyperpro spring and they will try next week. He would like to know how others have done it. Does the bottom bracket spin off the shaft when the spring is compressed? Do you compress it hooking into the spring itself or pushing down on the "plate" at the bottom of the spring?

Joe Van Orsdol
Zimmerman Mn
'02 K1200LT
'94 K75S for sale
'11 DR650 Alaska Bike
'13 KTM 250XCW
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post #2 of 6 Old Feb 13th, 2009, 9:50 pm
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Re: Disassembling rear shock

Quote:
Originally Posted by joevano
I brought my stock shock to a shop today to see if they could install my new Hyperpro spring and they will try next week. He would like to know how others have done it. Does the bottom bracket spin off the shaft when the spring is compressed? Do you compress it hooking into the spring itself or pushing down on the "plate" at the bottom of the spring?
I have just completed this very upgrade to HyperPro Springs front & back.
The rear shock is taken apart from the top where the Preload is. I made a compression tool & you HAVE to release the small grub screw FIRST then, push the Preload adjuster down about 10 to 15mm & you will see a small wire clip - remove this then release the compression tool. This will then allow removal of the Preload adjuster & the spring. Assemble is reverse.
I have some picture if your interested PM me & I will email to you.
Here is a link that also talks about the way you have mentioned, but I did it the way Klauss at EMP said to do it.
http://www.bmwlt.com/forums/showthread.php?t=37485


Hope this helps

BIGHOPPER (Phil)
BGB 602
2016 R1200RT LC Purchase March
2003 R1150GSA Black Beast (purchased Nov 2011- 32,372klms)
2006 K1200LT Grey
(Purchased 2008, 7,350 mls) Trade in on 2016 RT at 80,600miles
1975 Norton John Player Replica (Sold When I got Married)
1973 Norton Interstate
1965 Atlas 750
1971 Triumph Trail Blazer(Rode from London to Sydney Aust, no maps for that)


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post #3 of 6 Old Feb 13th, 2009, 11:28 pm Thread Starter
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Re: Disassembling rear shock

Yes I would appreciate your pictures.

Thanks!

Joe Van Orsdol
Zimmerman Mn
'02 K1200LT
'94 K75S for sale
'11 DR650 Alaska Bike
'13 KTM 250XCW
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post #4 of 6 Old Feb 14th, 2009, 11:11 am
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Re: Disassembling rear shock

I have attached 2 pictures.
1. Is of the rear shock in the compression tool I made. It shows the HyperPro spring already installed. Again doing it this way you have to remove the small allen grub screw from the Preload Adjuster (it holds the Preload adjuster body to the shock) then clamp down on the Preload Adjuster approx 10 to 15mm will reveal a small wire clip around the shock, remove this, then release the tension. You can replace your spring. When reinstalling the Preload Adjuster ensure you put it back on inline with the grub screw mark on the shock body with the body of the Preload adjuster where the grub screw goes.

2. Is of the front shock with the Hyperpro spring beside the original shock with spring. On the top of the original you can see the 2 flat lock nuts. I used my same compression tool with the square tube of the tool below the jaws of a vice & the bottom of the shock sitting on the top of the jaws. We then compressed the shock spring enough that I could get I think was a 1 1/8" or 1 1/4" (can't remember) open end wrench to hold the lower nut & then used a small pipe wrench to loosen the top nut. Replaced the spring & did reverse (lower nut is bottomed on the threads) and use some red loctite before putting on the top nut.

All told it took 2 hours to make the tool & change the springs.
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BIGHOPPER (Phil)
BGB 602
2016 R1200RT LC Purchase March
2003 R1150GSA Black Beast (purchased Nov 2011- 32,372klms)
2006 K1200LT Grey
(Purchased 2008, 7,350 mls) Trade in on 2016 RT at 80,600miles
1975 Norton John Player Replica (Sold When I got Married)
1973 Norton Interstate
1965 Atlas 750
1971 Triumph Trail Blazer(Rode from London to Sydney Aust, no maps for that)


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post #5 of 6 Old Mar 4th, 2009, 10:35 pm
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Re: Disassembling rear shock

Bighopper... that compression tool looks way too safe for this group.. =)
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post #6 of 6 Old Mar 4th, 2009, 11:01 pm
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Re: Disassembling rear shock

Quote:
Originally Posted by cfell
Bighopper... that compression tool looks way too safe for this group.. =)
Cfell, Yeah, I know it ain't pretty but it did the job,....took 30 mins to make.

Maybe make money renting it out

BIGHOPPER (Phil)
BGB 602
2016 R1200RT LC Purchase March
2003 R1150GSA Black Beast (purchased Nov 2011- 32,372klms)
2006 K1200LT Grey
(Purchased 2008, 7,350 mls) Trade in on 2016 RT at 80,600miles
1975 Norton John Player Replica (Sold When I got Married)
1973 Norton Interstate
1965 Atlas 750
1971 Triumph Trail Blazer(Rode from London to Sydney Aust, no maps for that)


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