Questions tagged [rust]

The byproduct of oxidation of a metallic material

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3 answers
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Wax Coating For Bolts To Prevent Rust

After having replaced components such as tie rod ends etc the bolts and nut areas already have signs of rust starting on them, rusting further down the line. At times when these need to be undone to ...
Dave1UK's user avatar
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What is the right battery-powered pump to rinse salt off of a car before parking?

I am looking for the following pump to rinse salt off a car before parking. The effect of the pump would be no more than pouring water on the roof, except that it would spray it to cover a larger area ...
Sam7919's user avatar
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1 answer
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Dacia sandero rust

Hi everyone who is reading this. I have a white Dacia Sandero 2015 with around 56k miles on the clock. I believe it needs a new clutch but after looking under the bonnet I am a bit concerned about the ...
Ozzylad20's user avatar
1 vote
1 answer
116 views

What preventative maintenance can i do to prevent rust on the axle nut

Hi everyone is there any specific grease or application I can use to help with preventing rust on the axle nut? I was worried due to a lot of salt being tossed on our roads in Ontario.
Edwin Andrew's user avatar
3 votes
1 answer
321 views

Rust precautions when enlarging two holes

If you insist on a 2" class-3 hitch (to be able to carry four bicycles), then either the option is not provided by the car dealer, or the option that's provided is so lavishly priced that you ...
Sam7919's user avatar
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5 votes
4 answers
2k views

Do extremely rusty disc brake rotors/pads need to be replaced?

Toyota Prius that has been outdoors and not driven for 2 years has extremely rusty disc brake rotors. Sorry, I don't have any current photos or access to the vehicle. The rotors and pads were ...
End Anti-Semitic Hate's user avatar
2 votes
3 answers
91 views

Best Method / Products to Cheaply Slow Rusted Roof

I'm part of a college student engineering organization and we were just able to get a 2005 Ford Explorer for free. It's in good condition except for the roof which has rusted pretty badly due to years ...
Vera Fodor's user avatar
3 votes
2 answers
475 views

Is It Bad for the Car to Park it Regularly on a Surface Covered with Wood Mulch

I have heard that it's bad for the car if one parks it on a grass surface regularly. It is said that the moisture released by the grass would eventually cause rusting in the undercarriage of the car. ...
Tom Thomas's user avatar
0 votes
1 answer
215 views

How is rust prevention using oil or grease not a fire hazard?

I understand that in addition to coating the underside of a car with tar (?) to protect it from rust—or to delay rust rather, as it is unavoidable—it is also possible to spray some kind of oil or ...
Sam7919's user avatar
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1 answer
66 views

Why is only fender with surface rust? What to do about it?

I have a 2015 Toyota Yaris. I've owned it since it was new. There is a small amount of surface rust on my left rear fender: The right side, on the other hand, is perfect: Why would there be surface ...
Astor Florida's user avatar
1 vote
1 answer
225 views

VW Eos - Is this normal kind of rust on the underside (control arm) of a 14 year old car?

My first post here. I'm looking to get a 14 year old VW Eos, but I noticed some rust going on in this underside bar shown in the picture. Everywhere else is fine. There are some circular holes in the ...
Sav_d's user avatar
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2 votes
2 answers
140 views

Is it normal for rust to appear on brake disks within a couple of days of buying a new car?

I bought a Mustang Mach-E two days ago. Been very happy with it, except it rained last night and today the brake disks are covered in rust on all four wheels. We do live near a salt water bay, but my ...
Aaron's user avatar
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0 votes
1 answer
1k views

What could be the cause of rust only on the inner side of the brake disc?

As you can see in the picture below, the disc is rusted only on the inside part and the outer edges dont have rust. I heard discs rust but after braking the rust surface goes away from friction and ...
Timothy Scherer's user avatar
3 votes
2 answers
177 views

Underbody surface rust removal on olde Toyota van

Comments and advice welcome.  A certain amount of rude responses are anticipated and will be tolerated if the accompanying advice is good :-) This is really a single question with a few subcomponents. ...
Russell McMahon's user avatar
1 vote
2 answers
140 views

Exhaust rusting

I just purchased a 2023 nissan frontier pro 4x new back in the end of December. I live in the northeast, so I know rust will happen on the exhaust and muffler quickly. This just seems a bit excessive ...
Samo23's user avatar
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3 votes
4 answers
1k views

Is this rust around lug nut holes unsafe?

Stock steel rims on a 2014 Ford, bad looking (to me) rust around lug nut holes: What worries me is the flaking & raw rust right around the lug nut holes. I think some of it is from when I ...
user4520's user avatar
  • 269
3 votes
1 answer
551 views

Replace radiator hoses with radiator when rust is present in coolant?

The radiator on a 20+ year old Jeep XJ recently bust. The fluid that came out was a rust colour, likely indicating that the radiator was at least partially filled with water instead of coolant (...
End Anti-Semitic Hate's user avatar
0 votes
1 answer
2k views

The center of my rotor get rusted fast. Do I miss any maintenance step?

The center of my rotors gets rusted very fast, probably after several weeks after I replace them (See the picture). I read that it’s normal because the rotor is made of cast iron. However, I also ...
Harper's user avatar
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0 votes
2 answers
60 views

Brakes very rusty after recent replacement

Holden Cruze 2002 front tyre All drive or rotors are rusty now why only had them replaced spent 800. Plus other things all up spent 1580 there also abs light keep coming on EDIT: Does this picture ...
Lou's user avatar
  • 1
2 votes
1 answer
123 views

Evap code and the gas cap

I have a 2008 Jeep Liberty that has had the check engine light come on many times over the years for P0456 Evap leak. The problem seems to be rust forming where the gas cap gets placed. I remove the ...
rtaft's user avatar
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2 votes
0 answers
310 views

What is the best way to go with quarter panel repair?

I’m working on my first DIY car restoration project. Of course the car had a lot of rust spots I needed to fix. After a lot of practice and learning, I started with floor panels and underbody repairs ...
Jan Imrich's user avatar
0 votes
1 answer
91 views

Is rust a deal breaker? Should I buy it? [closed]

It's a 2018 Honda civic si. It has rust in certain areas. I can still return the car. Need your opinions. Appreciate the help.
anakin7865's user avatar
2 votes
0 answers
158 views

Likelihood of every piston ring corroding the same rate

I performed a rebuild of my both cylinder heads on a V6 engine, in order to grind leaky valves. I performed a test of each valve pouring isopropyl alcohol in the intake/exhaust chamber and waiting ...
amphibient's user avatar
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2 votes
1 answer
1k views

Can an insurance company deny repairs after an accident because of rust underneath?

My husbanded was rear ended on the express way. Went in for repairs..fixed the outer part of the car. Once I drove it off there lot it sounded like the wheel was coming off. I took it back, they ...
Rebecca's user avatar
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5 votes
4 answers
933 views

Removing rusted partially broken engine fasteners

This is the flange plate on one of my catalytic converters AKA exhaust manifolds where it joins the exhaust pipe. Before they broke off, the studs looked something like this, the driver head was ...
amphibient's user avatar
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1 vote
1 answer
1k views

Cylinder sleeves mildly rusted after heads were off

I had my cylinder heads off for valve tuning for a prolonged time period so moisture got in and some very mild surface rust collected inside the cylinders whose pistons were not in TDC (4 out of 6). ...
amphibient's user avatar
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0 votes
1 answer
395 views

Is it worth undercoating an already rusted frame?

I live in a place where the roads are salted and it leads to a lot of undercarriage corrosion. I typically get my vehicle undercoated every year (which costs about $150 where I am). Even though I have ...
hurlbz's user avatar
  • 103
1 vote
1 answer
157 views

How would you approach fixing this panel part?

This is a continuation of this saga. I just removed my rear window and grinded down the fix area, finally past the point of no return. Found out that I was scammed by the body worker worst than I ...
IanC's user avatar
  • 386
1 vote
2 answers
3k views

Can spraying the car with a light layer of diesel help against corrosion?

I received an advice from a friend: put diesel in a bottle with a spray nozzle and spray the car with it. He said that this should form a layer on the car that helps against corrosion. When I asked ...
Rauni's user avatar
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8 votes
1 answer
5k views

Is it normal to see a bit of rust under the hood?

While inspecting under the hood of a 2008 Suzuki Swift, I saw a bit of rust in some areas: (The last image is below/behind the battery.) I have looked under the hoods of other cars from 2008 and even ...
hb20007's user avatar
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1 vote
1 answer
520 views

Can an unused rear disc brake rust so badly it becomes stuck?

Usually when I start driving with my hybrid car (2016 Toyota RAV4 hybrid), I release the parking mechanism, select reverse, and the car begins moving very gently. Sometimes I have had an issue, ...
juhist's user avatar
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0 votes
1 answer
115 views

Advantages of clear (vs. black) rust prevention

If I am going to put Waxoyl or equivalent onto areas that don't need to have a pretty black sheen, does it make sense to use the "clear" version so that any new build up of rust can be seen ...
andy29's user avatar
  • 23
2 votes
1 answer
189 views

How to unscrew a stuck screw from a U-style spring nut?

I have a rusting screw secured with a U-style spring nut in a very tight and difficult place. The screw secures one of the fog light assemblies to the bottom of my Forester's bumper. Here's front and ...
ysap's user avatar
  • 473
0 votes
1 answer
211 views

How to remove minor surface rust on frame?

I got a used car with very minor surface rust. It's so minor that I think just sanding it will do. However, I'm not sure what to do afterwards. Don't factory metals contain some finish? If so, sanding ...
user1164937's user avatar
1 vote
1 answer
3k views

Rust on Vehicle Sitting for a couple of months

My vehicle is sitting outside for a couple of months, more precisely, since around April 4th 2021 when I drove back from a safety inspection. Back then, the shop that inspected it required me the ...
Eduardo Reis's user avatar
0 votes
0 answers
41 views

Help! Should I be concerned about this rust on my wagon?

2005 Saab 9-5. Looking underneath the passenger side, is this the subframe I'm looking at? https://drive.google.com/drive/folders/1RpmbwwUWoQlVzvFV7pjfsTGADQ-kJKLq?usp=sharing New subframe doesn't ...
M Nicholson's user avatar
0 votes
1 answer
518 views

How to avoid breaking rusty bolts?

Recently I've been dealing with some bolts that broke when I tried to disassemble part of the brakes on my car. Soon I'll also have to do the same service on the other side, and I also need to change ...
StayOnTarget's user avatar
1 vote
1 answer
4k views

How to remove broken bolt stubs from brake caliper bracket?

Here's the bracket from the passenger (right) side front brakes on my Subaru Impreza. Both (17mm) bolt heads snapped off when I tried to remove them using a socket using manual pressure only, no ...
StayOnTarget's user avatar
1 vote
1 answer
459 views

How to repair crack in a pillar exterior panel

I am considering purchasing a 1972 Monte Carlo with a crack in the metal of the a pillar panel. I was wondering if it is possible to repair such damage or if I should avoid this vehicle.
Preston's user avatar
  • 13
0 votes
1 answer
987 views

Will a door edge guard cause rust or other issues?

I would like to place a u-shaped rubber door guard provided with double sided tape along the edges of my car doors to avoid damage against other cars or against walls. I wonder whether this protection ...
FarO's user avatar
  • 632
1 vote
2 answers
690 views

Is this too much rust to repair?

I (maybe foolishly), recently purchased this car privately. I failed to inspect the underbody of the vehicle accurately. It's a 2011 Mitsubishi Lancer. I was wondering is this rust too much to get ...
Matt's user avatar
  • 11
1 vote
1 answer
2k views

How can I prevent hub and rotor rusting together?

I've got a 2013 BMW 335i with M-Sport options. It prompted this question but the issue (and probably the solutions) are not unique to it. Like many such vehicles, the rear brakes are part drum, part ...
Edward's user avatar
  • 2,857
1 vote
1 answer
119 views

Protecting the Mating Surface between the Catalytic Converter and Header

In the midst of replacing my Catalytic Converter on my 03 Nissan 350z, I have taken off the Catalytic Converter to reveal a pretty rusty mating surface between the two components. My question is what ...
Copy and Paste's user avatar
1 vote
1 answer
218 views

Rotor replacement/machining necessary after car has been sitting for a couple of months!

My 2013 Mazda CX-5 has been sitting out for a couple of months and we had a pretty wet spring here. When I took it in for service, the dealership told me that they want to replace the rear rotors and ...
Patrick's user avatar
  • 11
2 votes
3 answers
95 views

What would the result be of re-painting a slightly rusting door?

Im going to be getting a Macao paint job inn the coming weeks. they're not doing any primer or anything, the car has its factory paint job, just getting something to match up door paint after ...
Jim's user avatar
  • 123
1 vote
1 answer
698 views

Trunk Lid Rust Removal worth it?

My car's trunk lid has a nasty rust spot. My Dad recently asked me why I don't just sand it down, bondo and paint it and that probably isn't a bad idea. The thing is that from the outside it looks ...
dohamann's user avatar
2 votes
4 answers
4k views

Rust band on brake rotor

Short question - would you replace this rotor? The 'rust band' on the outer edge of the rotor is part of the 'braking surface' - in other words, if I lay the pad on the rotor, part of the pad braking ...
wild.coast's user avatar
2 votes
1 answer
2k views

Can I use old engine oil to protect tools from rusting?

I'm not sure if the question is on-topic here, since it's about tools and not exactly mechanics, but if it's not I can move it to the appropriate SE! I have a power drill and used it once at work to ...
IanC's user avatar
  • 386
0 votes
2 answers
541 views

UK specific - MOT failure due to rusted body sill (BMW E46) [closed]

My car just failed MOT due to rusted body sill around a jack point area. Click here to see the video of the problem uploaded on youtube. Questions What job does it need done? Is it necessary for ...
Marcin22's user avatar
4 votes
1 answer
365 views

Do electric cars corrode faster?

I am buying a new Peugeot e-208 (Full electric) and I noticed something strange in the contract: Peugeot warrants all its new cars for 12 years against corrosion, but for electric cars they reduce the ...
Kevin FONTAINE's user avatar