Repairing the Airbox

Repairing the Airbox

Author
Discussion

mk1fan

Original Poster:

10,652 posts

232 months

Monday 17th February 2020
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Hello All,

The SP6 airbox is moulded / vac formed plastic. Would GRP be suitable to repair / modify?

Suni's airbox fouls the bulkhead plugs for the wiring loom but is also tight to the underside of the windscreen area. I was thinking of using a holesaw to form an opening them moulding in a rebate using a aerosol can cap and GRP (as it is to hand).

Suitable?

mungral

60 posts

112 months

Wednesday 11th November 2020
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I doubt if epoxy or polyester will adhere to the plastic. Did you try this mod?

rev-erend

21,536 posts

291 months

Wednesday 11th November 2020
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You could probably do it in GRP smooth on top of a courser grade but it would look a mess.

Many motorbike parts are made from 'plastic'

Type into google motor bike panel repair, as its similar to what you want to do.

Its basically plastic welding, old fashioned soldering iron, cable tie for the filler rod
perhaps a plastic body filler spreader for and new plastic that you may need.

TwinKam

3,170 posts

102 months

Wednesday 11th November 2020
quotequote all
rev-erend said:
You could probably do it in GRP smooth on top of a courser grade but it would look a mess.

Many motorbike parts are made from 'plastic'

Type into google motor bike panel repair, as its similar to what you want to do.

Its basically plastic welding, old fashioned soldering iron, cable tie for the filler rod
perhaps a plastic body filler spreader for and new plastic that you may need.
As with metal welding, best results are obtained by using 'parent' material for the patch and the rods. If you're looking to create a rebate, it may be possible to create (most of) it by reversing the section you cut out... plan carefully first with paper patterns.
Alternatively, if it's a thermo plastic, could you not create a rebate by warming and reshaping the area?