r/autorepair • u/joshuamichael • 2h ago
Body and Paint Seeking advice on body repair
Hi all,
I’ve recently purchased a 1990 Toyota Camry CS Wagon. Automatic transmission. SV21 series. Australian model.
The engine had low kilometres (or miles if you like) and one elderly owner, so it was a steal for what I had paid.
I’ve been repairing minor scrapes, marks, and damage to some internal and external body parts at home. For which I’ve had some decent experience in the past.
However I am needing some advice on repairing the front and rear black ABS plastic bumpers.
I don’t have specific pictures of the problem areas at the moment - I’m having the fuel pump replaced so it’s over at the mechanics. But I have attached some generic images of the car, and one of the undamaged brackets.
The problem areas are on both the front and rear bumpers where the metal brackets are fixed with screws into the bumper, and then connect with I think M8 bolts to the quarter panels on the body.
Over time the brackets have pulled (probably in minor bumps or scuffs) away from the body just enough to rip the screw holes in the ABS bumper pretty well in half.
So I’m dealing with torn screw holes in an ABS plastic bumper.
I’ve attempted to mend the damaged screw holes with 2 part epoxies - after allowing adequate setting time it sadly doesn’t hold with some light tension just simply screwing back in the bracket.
Replacement bumpers from several wreckers seem to be in better condition in this area, but also damaged. After 30 odd years it’s unsurprising.
My next thought is to look into plastic welding - potentially sourcing some virgin ABS, and fusing the repair ABS into the shredded screw holes. But in this particular area of repair, my experience is nil. So I’m not certain of the logistics or effectiveness of this on aged ABS.
I’m wondering if anyone has any advice, suggestion, or experience on repairing ABS plastic parts to some sort of standard that they can withstand tension from a screw holding a bracket? Or some similar plastic repair.
Open to try anything - I have a plentiful garage and most repair tools and products at my disposal.
Thanks in advance!