BMW K bikes (Bricks)


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duck

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(Hey, I know the topic has been visited discussed before but at least it's not an oil thread.)

The K1100LT I'm refurbing has cracks in the inner halves of the Gen 3 system cases.

From poking around here and elsewhere it looks as though some amateur plastic welding using a soldering iron flat tip is in order. I'd like to add material when I do it. Wondering if there's some sticks of ????? that I can buy to add some material while I'm at it.

Something cheap from the Ebay Chicoms would be preferred.

Also anybody who's done this recently and has some pics to share would be appreciated.


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Current stable:
86 Custom K100 (standard fairing, K75 Belly pan, Ceramic chromed engine covers, paralever)
K75 Frankenbrick (Paralever, K11 front end, hybrid ABS, K1100RS fairing, radial tires)
86 K75C Turbo w/ paralever
94 K1100RS
93 K1100LT (x2)
91 K1
93 K75S (K11 front end)
91 K75S
14 Yamaha WR250R
http://www.ClassicKBikes.com
    

charlie99

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there were a couple of experienced plastic welder guys that contributed to a similar post ....now ages ago

but I'm with you .
there is now a heap of abs film (rod like material on a spool likeoversized fishing line ) used in all sorts of 3 d printers now days
I'm just waiting for our engineering area to get some
they don't like the stuff actually and use the other alternative (not requiring a heated bed ) sorry ive forgotten its name
but the point being the abs filler - film should be easy to find I recon ...even someone elses trash ???

would love to hear from those with experience again


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cheezy grin whilst riding, kinda bloke ....oh the joy !!!! ...... ( brick aviator )

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%O
    

Point-Seven-five

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I did a welding repair on a case last year with a soldering pencil. Didn't like how it looked so I reinforced it with some 1/16" ABS thermoforming sheet glued down with some ABS cement for plumbing fittings.

The cement I used was some I had left over from a PA speaker project I did about 10 years ago. The cement I used had ABS plastic mixed in with it, so when it hardened it added a filler effect between the sheet and the case, hopefully creating a stronger bond.

Don't know where to get it, it came with the speaker components. I guess you need to look for filled ABS cement.


__________________________________________________
Present:
1994 K75RT
1994 K75S
1992 K100RS

Past:
1982 Honda FT500
1979 Honda XR185
1977 Honda XL125
1974 Honda XL125
1972 OSSA Pioneer 250
1968 Kawasaki 175
    

dutchie

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K75RT 1996
K100RT 1986
    

duck

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How about this stuff? Maybe with some fiberglass? (Just the fiber to give the bond some tensile strength, not the resin.)

http://weldon.com/solvent-cements/abs-cements/771-abs/


__________________________________________________
Current stable:
86 Custom K100 (standard fairing, K75 Belly pan, Ceramic chromed engine covers, paralever)
K75 Frankenbrick (Paralever, K11 front end, hybrid ABS, K1100RS fairing, radial tires)
86 K75C Turbo w/ paralever
94 K1100RS
93 K1100LT (x2)
91 K1
93 K75S (K11 front end)
91 K75S
14 Yamaha WR250R
http://www.ClassicKBikes.com
    

duck

avatar
Life time member
Life time member


__________________________________________________
Current stable:
86 Custom K100 (standard fairing, K75 Belly pan, Ceramic chromed engine covers, paralever)
K75 Frankenbrick (Paralever, K11 front end, hybrid ABS, K1100RS fairing, radial tires)
86 K75C Turbo w/ paralever
94 K1100RS
93 K1100LT (x2)
91 K1
93 K75S (K11 front end)
91 K75S
14 Yamaha WR250R
http://www.ClassicKBikes.com
    

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