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post #1 of 5 (permalink) Old Sep 27th, 2016, 1:22 pm Thread Starter
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Shock Disposal

This could be a silly question, but here goes. I replaced both shocks on my 03 GT and want to get rid of them. I'm told they need special preparation, e.g., holes drilled into them, before anyone will take them. Is this true? Is it a hazardous process? Is there an easier alternative? Thanks in advance for your insights.
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post #2 of 5 (permalink) Old Sep 28th, 2016, 11:40 pm
cws
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maybe that's just to drain the oil before someone recycles them (or landfill?)..... probably quicker than dis-assembling them...

Chris
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2005 Dark Graphite Metallic K1200LT
2005 Orient Blue Metallic K1200GT SE
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post #3 of 5 (permalink) Old Oct 6th, 2016, 3:18 pm
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OK I met this on a pair of car tailgate struts. The issue only concerns GAS STRUTS AND SHOCKS. These are built using a compressed gas in the design and are not the older oil filled type. The concern is what happens in a recycling process if the already compressed gas strut is inside a waste compactor or rubbish compressor on a trash vehicle - they could explode like a pipe bomb!

I was nervous dealing with my struts, but I put each one in a vise then drilled a 1/16" hole about 1/3 of the way down the strut body. There was a gently hissing noise and a small amount of oil got released. In all not a very dramatic result, but the strut was then depressurized and rendered safe to dispose.



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post #4 of 5 (permalink) Old Oct 6th, 2016, 6:24 pm Thread Starter
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Thanks. I assume the bike shocks are not gas filled?
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post #5 of 5 (permalink) Old Oct 9th, 2016, 2:46 pm
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This is what Pirate says about Ohlins:
Quote:
Our choice for the FRONT Ohlin for your BMW K1200RS is a monotube high pressure gas type of shock absorber with internal reservoir with floating piston built into the main body.
Our choice for your REAR Ohlin shock is a spanktacularly good looking monotube high pressure gas type shock absorber with hose mounted external reservoir offering a 46mm piston
If you have Ohlins shocks you bought them because they can be serviced or repaired and wouldn't want to drill holes in them! If you had the OE shocks you would know when they were worn out (apparently) and since they are not repairable you might as well drill a hole for kicks. I'm not 100% sure if the OE Showas are a gas strut but you want to get rid of them as fast as possible when they wear out. IF BMW say they should be made safe and there is no sign of leaking oil on a bad shock then assume it is gas filled. By far the biggest safety issue to yourself is getting springs on and off. Bike shock springs are not so huge, but I had a near death 'BOING' experience once with a car strut when the spring compressor slid. Since my workshop roof now shows evidence of the event I'm much more cautious working on shocks and springs.



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