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Repair Motor Magnets and Clean Components

11:47
25:07
63K views

At 11:47 in

What's in my fuel! This doesn't look good!

What happens here

The critical issue is revealed: the magnets inside the motor casing have come loose due to degraded adhesive and rust, which is preventing the motor from operating correctly. The presenter outlines the repair strategy as reattaching these magnets rather than buying an expensive new pump. He thoroughly cleans the inside of the motor casing by scraping off old glue and rust with a flat-head screwdriver, followed by using a wire brush attachment on a drill to ensure a clean surface. He also cleans the commutator on the armature with fine sandpaper and uses a specialized file tool to clean the grooves between the commutator segments, ensuring good electrical contact for the brushes. Finally, he cleans all parts with brake cleaner.

Goal: This step involves repairing the motor by reattaching loose magnets and meticulously cleaning all internal motor components to restore proper function.

Tools and materials

  • Brake Cleaner (CRC Brakleen)
  • Commutator File/Cleaning Tool
  • Drill (DeWalt)
  • Fine Sandpaper
  • Flat-head Screwdriver
  • JB Weld Epoxy
  • Wire Brush Attachment

What they say

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setup is explosion proof let me before I cut the wires let me see if I can take these two nuts off without damaging the motor fingers crossed yeah whoo that's a long one that's a long one too all right let's see maybe it'll come apart maybe might take a little tappy tap tap man I'd love to fix this instead of buying a new one let's get a little slide tap here there we go I'll bet the armature and everything comes out what's your guess post it before I do it let me know what you think let me know if you think I'm wasting my time I just need to spend the money and replace this stinks smells burnt up yeah this thing is very corroded inside come on here we go okay all right here's what we got it's been full of water look at that it's got just rust and flakes of crusty nastiness in there smells bad too I mean it will not turn freely at all so the motor is trashed it's full of rust and that's okay I mean we only paid a hundred bucks for the fuel tank with the pump so that's okay but it's not okay for my wallet yeah it should be mmm there it comes come on baby oh that is a nasty crusty thing it's not held in I don't think it's a magnet holding in and I think it's just held in with crust that's why we're not turnin like we should come on ma'am okay there it goes there is a magnet okay here comes well see the dustcloud come out of there look at that nasty yep there are two big old magnets in there but it evidently it's usable service life is over something has burnt up in here it smells all burnt up and that's what the noise was we were hearing has all these little particles see if I can get you a good shot of it all that crust that's what's making all that noise grinding so the question is do we give up or do we just take some brake cleaner clean this thing back up and put it back together oh my limit there we go that was easy yeah there it is it looks as if this had some sort of glue that held it in place at some point that glue is done I hope you guys are enjoying this I like this kind of stuff it's educational it's fun and whether it works to fix it or not who knows but it's worth a try to save 300 bucks so these are the brushes right here and they're spring-loaded and they're not that bad I am totally inclined to take this guy down to the shop clean it up really good put it back together and see what it does maybe even take some diesel fuel and just just wipe this off water fuel water electronics no good no worky it's the next day we went over to try to supply…

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