What I Did to my Bolts That Stopped Rust

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3 months ago I treated some bolts with an oil bath after heating them up cherry red. I left them outside open to the elements with another untreared bolt so let's see what happened to these bolts. Here's the video where I cleaned and treated the bolts. • How To Restore Rusty B...
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13 апр 2022

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Комментарии : 92

@retrorestore 2 года назад

Some people have asked if the bolt would become brittle. I wouldn't have a problem fitting these to a lawnmower engine as the torque is only about 25ft lbs. I know that quenching bolts can make them harder and also brittle but in low torque situations, they will be fine in my opinion. I may do a test on these bolts by reheating one of the blackened bolts and let it cool naturally and see if it retains the rust prevention properties and also do a stress test on the bolts in question to failure to see the result.

@gerbutt 2 года назад

It’d be awesome if you did the experiment video dude, love things like that. Happy bank holiday to you all :)

@paulstir 2 года назад

Sounds interesting Martin also very useful knowledge to have 👍

@ksajak 2 месяца назад

You ever do the video??

@axosoutdoors Год назад

This video has changed my life! I have been painting bolt heads black for customizing, but now I will do this. Thank you 👍

@mikl911 2 года назад

It defiantly makes them more "brittle" (hardened), you should temper them,. Bake them in an oven at 400 for a couple of hours and let cool slowly. Great video thanks for sharing.

@thomaslewis9526 Год назад

I've heard of painting waste oil onto metal parts (like hinges) and then baking/burning it on with a propane torch to make a good (& cheap) finnish. This is the same thing the other way round, and you have shown how well it works. It's also a classic example of blue collar ingenuity. Thanks for the demo.

@vijayantgovender2045 2 года назад

Thank you Martin wonderful job love watching your videos I am watching from South Africa

@steven907 2 года назад

Masterclass Mr Butler brilliant

@paulb4uk 2 года назад

Great result and they look good .

@andrewmolloy5095 2 года назад

Great tip, they look brand new!

@haydenuk02 2 года назад

Great work and thanks for sharing this with us

@derbyjohn972 2 года назад

Amazing information again Martin 👍🏻

@Alanw74 2 года назад

Definitely worth trying this 👍

@STTC 2 года назад

Fabulous Martin, great tip

@billywhizz98 2 года назад

Great review Martin

@01arron 2 года назад

Thanks for the info fella, I will be using this for sure

@breannestahlman5953 Год назад

Thank you for your good videos.

@AJPsWorkshop 2 года назад

Amazing results mate

@retrorestore 2 года назад

Thanks Ash👍

@germancarfan 2 года назад

Those have held up great 👍

@davidriley9194 2 года назад

Great job Martin! Those bolts look like new again!👍 Happy Easter to you and the family!

@retrorestore 2 года назад

Same to you Dave

@davidriley9194 2 года назад

@@retrorestore Thank you very much Martin!👍

@alandykes2519 2 года назад

Spot on Martin thumbs up 👍👍👍👍

@retrorestore 2 года назад

Thanks 👍

@kirby62 3 месяца назад

great video thank you for the explenation been wanting to do my enduro bolts

@moonshinepz 2 года назад

Great result. I'd fotgotten about the original video. Nice to see the follow up.

@tinkeringtaylor3053 2 года назад

Great tip Martin 👍

@retrorestore 2 года назад

Thanks 👍

@AliMackMechanical 2 года назад

I have heard of people doing it with hot oil Martin good Tip.👌👍

@tarrapere 2 года назад

I'm impressed with the results Martin, nice follow up video. Enjoy your Easter break and best wishes to you and your family. Enjoyed your Scotland trip as well (Butlers Empire) .. All the best , Joe

@retrorestore 2 года назад

Thanks Joe.

@normsmowers4758 2 года назад

Nice results Martin yes we have some rubbish weather ere in UK 🇬🇧 👌

@retrorestore 2 года назад

Tell me about it

@roystheboy 2 года назад

Great idea martin

@retrorestore 2 года назад

Thanks Roy👍

@a11csc 2 года назад

nice tip martin

@cupcakecontent2226 2 года назад

Nice little update

@retrorestore 2 года назад

Thanks 👍

@tthams73 Год назад

That’s what I wanted to see!

@anfieldroadlayoutintheloft5204 2 года назад

good vid martin thanks lee

@robertboyer5498 2 года назад

Hmmm. Probably made it brittle. Maybe you could take one of the bolts as an experiment and heat it back up and let it cool in the air. Then see if it has regained ductility and kept its rustproofing. Drive both bolts to failure and see which is stronger then set them back in the elements to see if the reheating takes away the rustproofing. Just a thought that might be interesting.

@retrorestore 2 года назад

Yes Rob, I was thinking of exactly that as some people have asked about being brittle. I wouldn't have a problem fitting these to a lawnmower engine as the torque is only about 25ft lbs. I know that quenching bolts can make them harder and also brittle but in low torque situations, they will be fine in my opinion.

@robertboyer5498 2 года назад

@@retrorestore cheers mate. Keep up the great vids.

@cafereecer7919 2 года назад

love your workshop tones of work stations im building a small thing at the moment 9x12 workshop

@retrorestore 2 года назад

Nice one, good luck with it.

@medievilassassin 2 года назад

That’s great , so it’s not just for looks , I need to do the bolts on my MK3 mondeo 2.5 engine bay

@alanpatterson2759 2 года назад

Makes a cracking job, and cheap!

@gerbutt 2 года назад

Hello Martin, great vid again 👍 I was just wondering if the heating of the bolt and then quenching would change the strength of it, make it brittle? Hope you have a nice Easter dude 😊

@longshanks4833 2 года назад

I think you might be right. It would be interesting to get the opinion of a metallurgist. They do look nice though 😀

@retrorestore 2 года назад

Got this from Google "Quenching results in a metal that is very hard but also brittle. Gently heating a hardened metal and allowing it to cool slowly will produce a metal that is still hard but also less brittle".

@gerbutt 2 года назад

@@retrorestore nice one for that buddy 👍 It certainly looks nice and is good for rust but probably better not doing it on calliper bolts or similar? I wonder if gun bluing would be good for them? Thanks for taking the time in making all these vids on your different channels, love them 👍

@stevenwatson3963 2 года назад

You should use this tip on Lee's campervan wheels as they spend most of the time sunk in mud lol ;-)

@nigelstevens3627 2 года назад

you are the rust god......

@chasmcl42 2 года назад

I remember that one Martin, nice results, how about a year update.

@robertbills4290 2 года назад

if the bolts was to have nuts run up them and tightened up do you think it would effect the oil treatment Martin I.e remove the coating thus creating rust again to the bolt thread

@retrorestore 2 года назад

I don't think so as the coating is etched into the surface.

@ArmandoLoni 2 года назад

Yep..... I use the technique to blue some of the tools I restore 👍🏻🛠️

@redzed40 2 года назад

Martin 👍

@KensSmallEngineRepair 2 года назад

Brilliant Martin. I wonder if different oils will look different after the process?

@retrorestore 2 года назад

I used new oil and used oil and they looked the same Ken in the previous video.

@KensSmallEngineRepair 2 года назад

@@retrorestore I heard Olive oil dipped 3 times gives a beautiful black finish. I’ll have to try it, but first need one of those tumblers!

@rajataudichya895 11 месяцев назад

Just curious, what would happen if we put that in normal vegetable oil?

@tomthumb3085 2 года назад

Hi Martin. How does the heat treatment affect the strength of the bolt, if at all. Great tip, thanks.

@retrorestore 2 года назад

I'll be testing that in another video.

@zupy3278 8 месяцев назад

@@retrorestore I can't find the video for testing the strength ... so are they still in same strength condition or is now a chance that the will break? I have done this process and now I'm not sure about strength 🤷🏼‍♂️

@robertasjuscius1092 Месяц назад

Please please could you post bolt temper test after heating.

@menditman2004 2 года назад

Hi Martin did you get this idea from Dellboys garage, as I saw him do the same a while back. They do come out nice.

@retrorestore 2 года назад

I did this in my secondary school on the late 70's in metalworking class. I don't watch Delboy's Garage. He comes across as too patronising and covers up mistakes in my opinion.

@menditman2004 2 года назад

@@retrorestore I only came a cross him when i was searching how to stop bolts rusting, I haven’t watched much of his stuff myself but I remembered him when I saw this video 🙂👍

@weldhard996 2 года назад

It may have stopped them from rusting ,but with heating & quenching the balts will have hardend & with not tempering the bolts after the are guaranteed to fail under stress

@retrorestore 2 года назад

These type of bolts are only tightened to about 25 ft lbs. no stress there bud.

@danielclift1 2 года назад

is the black bolt from a 35 classic engine it holds the fuel tank on and the rusted one looks similar but is a head bolt from 35 classic ??

@retrorestore 2 года назад

Yes Dan Classis head bolts.

@barnabyvonrudal1 10 месяцев назад

I saw a comment in another video where they heated up the metal only hot enough so it would melt paraffin wax (coating in wax not oil but should have a similar effect) . So not hot enough to see any colour change in the metal.

@davecollumbell4592 2 года назад

Hi Martin when you say black oil i guess you mean used engine oil ??? or has it got be clean oil 🤔

@retrorestore 2 года назад

Watch the first vid Dave to stop me repeating myself.

@petepeterson4540 2 года назад

thats all fine but you can make them very brittle

@retrorestore 2 года назад

I wouldn't have a problem fitting these to a lawnmower engine as the torque is only about 25ft lbs. I know that quenching bolts can make them harder and also brittle but in low torque situations, they will be fine in my opinion.

@jamies_st220 2 года назад

When are you going to start working on the trotter van?

@retrorestore 2 года назад

When I've restored these 2 bikes.

@jamies_st220 2 года назад

@@retrorestore ok

@topconker2909 2 года назад

Interesting follow up Martin, by the way, sent you n e-mail the other day, have you had a chance to read it mate?

@retrorestore 2 года назад

Not yet Phil, i'll have a look

@medievilassassin 2 года назад

No matter what I do my bolts don’t go cherry red they just go blue 🙄

@retrorestore 2 года назад

Give it a go at that. Sounds like you are not using Mapp gas.

@medievilassassin 2 года назад

@@retrorestore using propane mate , does map gas get hotter?

@retrorestore 2 года назад

I think it does.

@dirtygarageguy 2 года назад

Those bolts have been in partial shelter and I don't believe they've been outside for 3 months. Do you wanna put your money where your mouth is? I have a challenge for you.

@retrorestore 2 года назад

They have Matt, I left them outside on that shelf after the first vid and they have been wet with the morning dew ect. What's the challenge?