Author Topic: Plastic Repair on Fairing Exterior  (Read 1189 times)

Online Dirk_S

  • www.dirkshearer.com
  • Gaggle Hero
  • *****
  • *
  • *
  • *
  • *
  • *
  • Posts: 1979
  • Doodler of doodles
    • www.DirkShearer.com
  • Location: Portland, Maine, U.S.
Plastic Repair on Fairing Exterior
« on: November 07, 2024, 02:07:51 PM »
I’ve repaired ABS on the backside where looks don’t matter much, but is there anything I can do to repair the Lario’s fairing to where I can get it back to looking like new’ish on the exterior side? The fairing has begun sagging and bouncing a little due to the upper mounts being weak, and the counterforce of the immovable brake reservoir is leading to the damage, or so I’ve surmised since this all happened before I bought the bike.

Fiberglass backing on the inside > Bondo? > sand and polish?

Also: looks like there already was a previous repair attempt, based off the melted look of the plastic.

Pics below:



« Last Edit: November 07, 2024, 06:35:41 PM by Dirk_S »
Current: '18 Guzzi V7 III Rough, '17 Guzzi V9 Bobber, ‘78 BMW R80/7, 1986 Sputnik sidecar

Previous: '16 Guzzi V7 II Stone, ‘15 Ural Gear Up, '11 Suzuki TU250X, ‘86 Guzzi V65 Lario, '78/‘80 Honda CX500, '77 Kawasaki KZ400 Special

Offline nc43bsa

  • Gaggle Hero
  • *****
  • *
  • *
  • *
  • *
  • Posts: 1420
  • Location: Mooresville NC
Re: Plastic Repair on Fairing Exterior
« Reply #1 on: November 09, 2024, 06:24:23 PM »
I've had success on small repairs with ABS glue or acetone and LEGO blocks.  Rough up the original surface, mix up a thick paste, and spread it on.  Once it sets, grind or sand it even and repeat until smooth.

I haven't tried this method on a large repair such as yours.
1990 MilleGT

Online Dukedesmo

  • Gaggle Hero
  • *****
  • Posts: 600
  • Location: England
Re: Plastic Repair on Fairing Exterior
« Reply #2 on: November 10, 2024, 06:11:27 AM »
What plastic is it?


Fibreglass will need fibreglass repair but if it's the stuff modern bikes/cars are made from it may respond well to plastic welding - done with a large, flat soldering iron and some cable ties as filler.


My Son recently hit a deer in his car which smashed up the front end and whilst I did get a new front for it, the temporary repair that I did by welding held up really well and the only reason I got a new front was that it (aftermarket) was cheaper than getting the repaired front professionally resprayed.
Le Mans II
Ducati 916
Ducati M900

 

***Wildguzzi Official Logo High Quality 5 Color Window Decals Back In Stock***
Shipping in USA Only. Awesome quality. Back by popular demand. All proceeds go back into the forum.
Best quality vinyl available today. Easy application.
Advertise Here