DIY Bodywork on Miata

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yhelothar

Lifer
Dec 11, 2002
18,409
39
91
So my bumper cracked apart from driving into a dirt ditch D:, don't ask how :twisted:.
And I had a dent on my fender one day randomly, which I still have no idea whatsoever how it got there.

But given that my car cost me $1200, I wasn't about to spend $500-800 at a body shop. so I took the DIY route, not expecting much.

First of all, I have to give mad props to mr bondo. Fixing cracks and dents is pretty damn easy with bondo, albiet very tedious and time consuming. I probably made at least 20 mixes of it for the job. Although I bought the basic bondo, so it wasn't that strong in holding the crack together. But i got a tube of JB weld for it, which probably holds better than any bondo. I put a nice weld on the backside of the crack, while bondoing up the outside of it.

For painting, I just looked up guides online. I sanded the surface down smooth with 180grit, then finished it with a 320grit for primer. Put on 3 coats of primer and did a 600wet.

Next the base coat was tricky. I needed to find the fine balance between getting a thin enough layer so the paint doesn't start sagging and dripping, and getting a thick enough layer so that the liquid adhesion could do its work so that I don't get a misty/orangepeel texture.
Needless to say, I ended up with two sags.

I could sand it out and retry, but from what I've read, you don't want to sand before the clear coat. But... I didn't much expectations that it looks perfect, given that this is my ghetto rattlecan fixup job, so I just clear coated over it.

FUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU duplicolor clear coat. It ought to be called piss coat. It had added quite a strong amber/yellowish tinge to the paint. I ended up spending 2hrs of hard labor scrubbing it off with 320grit sandpaper(got to scrub out the drips too).

I resmoothed the surface with 600, then 1000, and busted out my $30 random orbital polisher with some nice 3M rubbing compound on it. It worked nicely to give it a mirror shine. :awe:

The fender bent was pulled out by drilling two holes and screwing screws in the holes, and then pulling it out with the rear of a hammer. I wasn't able to get a perfect pull this way, but I made up for it with some bondo.
Sanding through the paint was interesting, as this fender had been repainted 5 times!!11 Yes there was 5 layers of paint and primer.

Primering the fender was a bit tricky, as many parts of it kept giving me this frosty/webby texture when it cures. Not sure what causes it, but I was able to get rid of it from sanding it down a bit deeper with 180grit sandpaper and reprimering.

The whole thing took probably about 20-30hrs of work. It probably could've taken a pro a small fraction of the time, but this was a first.


tl;dr... pics

miatacracked2.jpg

miatacracked.jpg

miatabondo.jpg

miata21.jpg

miata22m.jpg

miata23.jpg

IMGP9331d.jpg
 
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CurseTheSky

Diamond Member
Oct 21, 2006
5,401
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Looks good, all things considered. DIY is the way to do it.

A lot of people don't realize how easy (though time and patience-consuming) it really is to do a decent paint job. Want a show-quality car? Take it to a pro (and spend at least $2-3k). Want something that's "good enough" for a weekend car? Give it a shot yourself. :)

Nice work.
 

yhelothar

Lifer
Dec 11, 2002
18,409
39
91
I like it. The stock nose looks feminine.

Ugliest?
Do you think it's uglier than this one...
veilside1.jpg



or this one that looks like it resembles this.. D:

product_thumb.php
 

yhelothar

Lifer
Dec 11, 2002
18,409
39
91
Looks good, all things considered. DIY is the way to do it.

A lot of people don't realize how easy (though time and patience-consuming) it really is to do a decent paint job. Want a show-quality car? Take it to a pro (and spend at least $2-3k). Want something that's "good enough" for a weekend car? Give it a shot yourself. :)

Nice work.

Yup you summed it up. It wasn't too hard to get it to look decent, but extremely time consuming to fix all the mistakes I made. But that's what makes it easy, you can just sand out the mistakes you make.

However, I do often hear that while it may not be that difficult to get a DIY rattlecan job to look good, getting it to stay looking good is the hardest part.
 

Zap

Elite Member
Oct 13, 1999
22,377
2
81
Nice job. I love the last picture, looks halfway surreal and halfway rendered.
 

CRXican

Diamond Member
Jun 9, 2004
9,062
1
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not a terrible front bumper, just looks silly with stock wheels and such

Nice DIY. My Miata needs a new driver fender and a total repaint. UGLY!
 

Raduque

Lifer
Aug 22, 2004
13,140
138
106
I kitty-haired and rattle-canned a replacement front bumper for my mom's car - because I broke the last one. It looked pretty good. Then some asshat went and ran over her car with a big white truck and insurance had it fixed. The bumper the dealership bodyshop put on ended up looking worse than the one I did because they didn't smooth it.
 

thescreensavers

Diamond Member
Aug 3, 2005
9,916
2
81
who cares he got the car for 1200, and fixed it up pretty good. Color is not 100% match but good enough. Nice clean car for 1200
 
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