halftrackinfo

general discussion => ALL mechanical and technical related questions => Topic started by: brit plumber on March 14, 2021, 10:30:40 AM

Title: I think my M3 donor was in an experiment?
Post by: brit plumber on March 14, 2021, 10:30:40 AM
Has anyone ever found their Halftrack to be magnetic? I don’t mean just a little bit, I mean everything! I’m having a real mare with swarf slinging to every piece. The only good thing is I have no metal on the garage floor and I’ve got somewhere to stick my sockets whilst I’m stripping.

Title: Re: I think my M3 donor was in an experiment?
Post by: Monkeypirate on March 14, 2021, 01:51:14 PM
That is impressive! Was it parked under a power line for years?
Title: Re: I think my M3 donor was in an experiment?
Post by: brit plumber on March 14, 2021, 06:32:40 PM
I have no idea, it’s pretty much every piece, it wasn’t to bad to start with but now I’m working on parts in my work shop, every little iron filing is finding it’s way on to the parts. Even after blasting, some still remain and I have to try and pull off those last bits by hand.

It was probably used by the French in a Nuclear bomb test!
Title: Re: I think my M3 donor was in an experiment?
Post by: coreyelliott on March 15, 2021, 12:21:23 AM
That is CRAZY!!!!!    ???

Corey
Title: Re: I think my M3 donor was in an experiment?
Post by: spillmk1 on March 15, 2021, 05:28:56 AM
That's amazing!!!  :o
Title: Re: I think my M3 donor was in an experiment?
Post by: RB-058 on March 15, 2021, 08:13:47 AM
Your halftrack not only ruins your bank account but also your bank cards....  ;D
Title: Re: I think my M3 donor was in an experiment?
Post by: brit plumber on March 15, 2021, 03:14:33 PM
Next time in the garage I will stick a socket and screwdriver on the hood. What I need to do now is find a way to lose the magnetic properties on a large scale.
Title: Re: I think my M3 donor was in an experiment?
Post by: Smadge on March 15, 2021, 03:43:21 PM
Think you have to heat it up to a high temp. Is that the only part magnetized?
Title: Re: I think my M3 donor was in an experiment?
Post by: brit plumber on March 15, 2021, 05:11:05 PM
Unfortunately not, it everything fro the hood back to the back of the cab. I could do with one of those degouser rigs the minesweepers used in WW2.
Title: Re: I think my M3 donor was in an experiment?
Post by: coreyelliott on March 15, 2021, 08:58:10 PM
Can't you just get a few of these and rub them all over the truck????    ;D


(http://www.surfacezero.com/g503/data/500/medium/cyfksjrzhsuwr7wxnbyb_900x.jpg)
Title: Re: I think my M3 donor was in an experiment?
Post by: Cleprechaun on March 16, 2021, 12:42:37 AM
My dad once told me that this can happen if the steel plate was smacked real hard with a hammer at just the right place. Maybe someone smacked your armor to get it to fit right. My dad also said you could smack it out too. Your lucky, my halftrack just sucks money away from me.
Title: Re: I think my M3 donor was in an experiment?
Post by: brit plumber on March 16, 2021, 03:50:44 PM
Can't you just get a few of these and rub them all over the truck????    ;D


(http://www.surfacezero.com/g503/data/500/medium/cyfksjrzhsuwr7wxnbyb_900x.jpg)

That’s an idea, one panel at a time wouldn’t be to difficult over a few weeks.
Title: Re: I think my M3 donor was in an experiment?
Post by: brit plumber on March 16, 2021, 03:53:23 PM
My dad once told me that this can happen if the steel plate was smacked real hard with a hammer at just the right place. Maybe someone smacked your armor to get it to fit right. My dad also said you could smack it out too. Your lucky, my halftrack just sucks money away from me.

It’s not just one panel though, it’s every one of them, and all the attaching parts including engine. I’m inclined to think that, as suggested, it’s been under or close to a power line or similar.
Title: Re: I think my M3 donor was in an experiment?
Post by: Monkeypirate on March 17, 2021, 07:20:44 PM
So, having had some drinks and thinking about this. Remember whan CRT's where comon they had degaussing rings to corect magnetic disruption in the tubes. So i looked and found this:
https://www.travers.com/portable-magnetizerdemagnetizer/p/57-081-121/?gclid=Cj0KCQjw0caCBhCIARIsAGAfuMw4eAUmdDdjElL52HBX93hIAskC2VhQGwDL1HJLvxy0T3PzOK9GrxQaAvqDEALw_wcB

Not sure if it would work but i bet with a little reserch or ingenuity you can bud a degaussing magnet or buy one that would. Id lose my mind having to deal with them metal pins all over my parts! Best of luck!
Title: Re: I think my M3 donor was in an experiment?
Post by: halftracknut on July 08, 2021, 07:31:02 PM
I have heard this on aircraft it really messes up the compass ...You have to rap your welder hot positive cable around the machine and touch it to the ground line...from what i have heard this should fix your problem ....good luck....
Title: Re: I think my M3 donor was in an experiment?
Post by: brit plumber on July 09, 2021, 01:41:15 PM
You may need to elaborate a little more for me. Is the use of the welder to demagnetise the plates?
Title: Re: I think my M3 donor was in an experiment?
Post by: halftracknut on July 11, 2021, 11:20:04 AM
it is same as electromagnet when in school...one way wrap magnetizes..... wrap other way demagnetizes....you just have to figure what way to wrap...
Title: Re: I think my M3 donor was in an experiment?
Post by: brit plumber on July 11, 2021, 02:17:19 PM
How does it demagnetise the plates? Do I need to wrap the welder + around each plate?
Title: Re: I think my M3 donor was in an experiment?
Post by: halftracknut on July 13, 2021, 02:57:26 PM
https://arc.aiaa.org/doi/abs/10.2514/8.972?journalCode=jans