16 votes
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Is sand blasting safe on old cars?

Sandblasting your frame is fine. Sandblasting your body or any panel can be debated until the pigs fly home. People have been doing it for decades, and get by. However, when you sandblast your body/...
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13 votes

What to look out for when buying a car that hit a deer?

I'd be asking if the car was put on a chassis rig when it was repaired. If it's even had just one day on a rig, it was clearly enough of an impact that made the assessor/repairer think it might be a ...
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  • 1,576
13 votes
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Best Way to Repair Damage to Exterior Door Shell

In my approximation, your "best bet" is to buy a replacement door out of a wrecking yard. Without extensive work, there's just about no way to fix what's there. If you can find a door of the ...
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12 votes

Large rust hole in spare tire area. (Completely rusted through) How to fix?

The following repair is cheap, easy and should last for 3 to 5 or more years depending on your climate, but it's not the "correct way" either. Remove the rust, paint and body protection around the ...
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  • 221
11 votes

To remove this type of "hard, metallicish" sticker?

Try a heat gun (NOT a hair drier - they're not hot enough). If you damage the paintwork - unlikely - then your plan B was to take it to a body shop instead anyway.
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  • 8,612
10 votes

Is sand blasting safe on old cars?

Sand blasting is perfectly safe for the metal, especially considering the heavier panels used in classic cars. However, it's less safe for the person doing the sandblasting, due to the higher levels ...
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  • 2,301
9 votes

What to look out for when buying a car that hit a deer?

You said "the dealer tells me that the car was likely rebuilt." The dealer should know for a fact that the car was rebuilt and issued a salvaged title, if not, walk away. On top of that, if the seller ...
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  • 6,017
9 votes

To remove this type of "hard, metallicish" sticker?

Razor + two chemical Cocktail - it worked! Success - I experimented a lot and fortunately the result was another "mechanics.SE save". 1. Whisky You're about to take a razor blade to a car, ...
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  • 281
8 votes
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What can be used to protect the under-carriage of a hot rod?

I would use epoxy primer to start. You can then spray paintable undercoat on your frame, underbody. They come in various forms as depicted in the image below. You may also use a rocker guard type ...
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8 votes
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Paint peeling around body filled area 6 months on

Bodywork is something that cannot be rushed. While others are suggesting chemicals that may be suited for this application, it is not necessarily going to be a solution to your problem. The most ...
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8 votes
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Welding sheetmetal

A useful technique with MIG on thin metal is to create the weld by a series of overlapping tacks rather than a continuous run ie strike the arc, create a puddle then release the trigger and repeat, ...
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  • 1,586
8 votes

Large rust hole in spare tire area. (Completely rusted through) How to fix?

I have no idea if this is legal where you live, or what tools or supplies you have, but this is what I would do to repair a junker/beater. I have used this for quick farm fixes without welding. You ...
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  • 9,035
7 votes
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How much of a difference will a splitter / diffuser would be on a FWD car?

tl;dr: You will almost certainly notice no effect at all other than the loss of fuel economy due to the increased weight. It is very unlikely that a splitter or diffuser will have any measurable ...
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  • 24.3k
7 votes
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Should I be worried about bumper reinforcement condition after being rear ended?

I believe this is the part you need to worry about: It is the rear bumper support and can be found under the bumper cover. As far as how imperative it is to fix, it all depends on the amount of ...
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7 votes
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Are these signs of a bad body shop paint job?

If the repair work looks shoddy, take it back to them and get it fixed. There are two very important reasons why they will get it fixed to your satisfaction: Since this is an insurance referral, they ...
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7 votes
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Neighbor uses cans of spray paint on his car - can it travel to my car?

It ABSOLUTELY can. It's called overspray. Take one look at a bad paint job and you'll know it's a real thing. While not a car, take a look at this image: Imagine how they do this. They put a stencil ...
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6 votes
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How to Use Glue on Dent Puller Tabs

Think of dent-pulling like sculpting. Examine the area you need to work on. The wide creased pads will create a pinched like pull, while others will create rounder or more narrow pulls. 1. How do I ...
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6 votes

Collision repair with Bondo and used parts

I recommend looking for a replacement side panel. Otherwise the standard panel beating approach is to try and hammer out the worst of the dents first. Car bog/filler/bondo is a last step to fill minor ...
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6 votes

Is sand blasting safe on old cars?

Must be a location based thing, but in the UK sand hasn't been used for many years due to the very real dangers of inhaling even small amounts of silica from the bashed up sand. Although folks still ...
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  • 161
6 votes
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When buying a used car, how much to discount for cosmetic body damage/scrape

You could speak to a bodyshop, get the price for a repair and attempt to haggle that off the price. However, you could approach it a different way. If the damage has been done to the vehicle, it ...
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5 votes
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How to ensure body repair parts will fit?

There is a certification program called the Certified Automotive Parts Association or CAPA. It not only covers body parts, but other parts as well. If you purchase a part which is CAPA Certified, you ...
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5 votes

Is sand blasting safe on old cars?

Yes, sand blasting is safe if you're safe Safety is variable. What is safe? Almost anything can be safe. Exploding bombs can be safe, it just depends on the process you implement for your safety ...
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  • 32.8k
5 votes

Why did my clear coat turn out matte instead of glossy, and how can I fix it?

The likely cause is that the paint was applied too thin per coat or the nozzle was too far away. A coat thick enough to get a glossy sheen is seen but not too thick that runs develop is the proper ...
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  • 11.5k
5 votes
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Why did my clear coat turn out matte instead of glossy, and how can I fix it?

@IHNIWID .. Yes, the "color" coat(s) need to be wet-sanded aka "color sanded". And then thoroughly cleaned of sanding dust. This needs to be perfectly smooth before clear, even if it appears dull. ...
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  • 12.3k
5 votes

How to repair a cracked plastic bumper

Sounds like you have the right idea, at least for a temporary repair. You'll have to remove the entire bumber assembly to do this right, and you'll need to go slow as to not break the platic clips ...
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  • 12.3k
5 votes

Large rust hole in spare tire area. (Completely rusted through) How to fix?

You can fix that by removing the remaining rusted metal, and welding some new steel there. There's really no other way if you live in an area with mandatory yearly car inspections. Try to patch the ...
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  • 13.7k
5 votes
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To remove this type of "hard, metallicish" sticker?

If you do try a sticker goo remover fluid you might need to paint it onto the edge (it might not permeate the sticker surface) and wait, then pull a bit, paint a bit more, pull, paint... long process ...
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  • 1,135
4 votes
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first "non-replaceable" parts to break

I know from experience that the doors like to rust after about 7 years if you're not careful. I don't know of anything else except the usual problems like cracking radiators, blown headgaskets and ...
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4 votes

How might I fix a dent in a Honda Rebel fuel tank?

There are a few ways to resolve this dent issue. Method 1 glue these plastic ding tabs to the gas tank. You can find them by googling "plastic ding tab" You will use a hot glue gun and hot ...
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  • 32.8k
4 votes
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OEM vs. after-market bumper repair: is there a difference in quality?

As I stated in this post, if you purchase a bumper cover which is CAPA certified, you'll not have any issues. Tell the guy you don't care which part he gets to replace (aftermarket or OEM) as long as ...
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