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Cracked side panel ? 03 Apr 2018 04:11 #781193

  • kzdcw
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My left side panel on my 77' KZ1000A has a 2 inch vertical crack at the bottom of the panel. I was thinking about using a length of fiberglass matt on the backside of the panel then using a resin and harder ?

How are you guys repairing your cracked panels and are the repairs working good ?
77' KZ1000A

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Cracked side panel ? 03 Apr 2018 05:27 #781195

  • Nessism
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I've made similar repairs using fiberglass cloth and slow dry two part epoxy glue. Before beginning, sand patch area inside cover to remove the paint in the area around the crack. Mix epoxy, flex side cover to open crack, force epoxy into crack using something like your finger in a latex glove, lay down fiberglass patch over crack from inside cover where it won't show and laminate in place using epoxy. Several years in and the repair is holding up perfectly.

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Cracked side panel ? 03 Apr 2018 05:42 #781196

  • SWest
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I use ABS glue and fiberglass now just like I would use resin. The resin loses it's bond under stress.
Steve

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Cracked side panel ? 03 Apr 2018 06:07 #781198

  • Firefly38
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I have used a superglue with " special" powder. works a treat and no requirement for fibreglass. Mate did an 8 piece repair to the front 4" of a mudguard and you cannot see it after painting

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Cracked side panel ? 03 Apr 2018 19:42 #781248

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Nessism, What do think about using Plastic Weld from J-B Weld ?
77' KZ1000A
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Last edit: by kzdcw.

Cracked side panel ? 03 Apr 2018 20:02 #781250

  • Kawboy74
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I used some of that JB recently in the clear version to cover an unwanted hole in a front fender. I added some fiberglass window screen on the second coat in behind and it is holding great.
Good luck.
1974 Z1A As original as I could get it
'88 ZX750R braided lines, mostly original
KZ1000 project on the bench
Burlington,Ontario,Canada
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Cracked side panel ? 04 Apr 2018 00:11 #781259

  • kzdcw
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Ran across this on the internet E6000 ? Anyone used this stuff ?



Saw on a Video that it looked like it worked well on cracked panels.

It seems like JB Weld Plastic Weld doesn't come in a "clear" version ?
77' KZ1000A
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Last edit: by kzdcw.

Cracked side panel ? 04 Apr 2018 05:23 #781260

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kzdcw wrote:

Nessism, What do think about using Plastic Weld from J-B Weld ?


Sorry, but I have no experience with that stuff. Most likely fine. I'd do some more research before trying it though. I used 3M DP460 epoxy.

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Cracked side panel ? 04 Apr 2018 06:22 #781261

  • Kollector
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Let's see a pic of the front and back at the crack.
'83 KZ750 Spectre, '01 ZRX1200R, '03 ZZR1200, '84 GPZ900R, 7 Hondas, 1 Yamaha

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Cracked side panel ? 04 Apr 2018 11:35 #781280

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kzdcw wrote:

Nessism, What do think about using Plastic Weld from J-B Weld ?


That stuff says it works on ABS and it looks very similar to a 2 part product I used on a side cover years ago.
I am not using the same side cover now but it never failed in around 30,000 miles of use.

www.kzrider.com/forum/6-paint-a-bodywork...-cover-repair#511272
78 KZ1000 A2A

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Cracked side panel ? 04 Apr 2018 11:51 #781281

  • scubaanders
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I would clean the panel.
Drill a small hole a the end of the crack.
Use a dremmel and create a small ditch along the crack on the inside of the cover.
An even smaller ditch on the outside.
Sand down .ca 1cm on both side of the crack.
Use a plastic welder and melt on a appropriate strip.
Let I cool
Sand the inside, reinforce with a small patch of fiberglass.
Fill the ditch on the outside with bondo and sand.

Talk to autopanel repairman, they are good at this nowdays as their is not a lot of sheet metal in a car now days.
/A
Gpz750R1 1982
Gpz750A1 1983
Gpz1100A2 1984
FZ750 1985
Gpz900R -91

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Cracked side panel ? 04 Apr 2018 21:21 #781305

  • SWest
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I do this now.
Steve

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