Honda-SOHC

Other Stuff => Misc / Open => Topic started by: SteveW on January 10, 2023, 04:08:09 PM

Title: Removing dents with a steel ball and a magnet
Post by: SteveW on January 10, 2023, 04:08:09 PM
Was flicking tv channels yesterday and caught an old episode of The Repair Shop.
Guy was fixing dents in the tube of a vintage telescope with a ball bearing probably in excess of an inch diameter on the inside and a large magnet on the outside.
He said the magnet had a pull of 26kg and he slowly massaged the dents out by working the ball over the dent with the magnet.

Wonder if this would work on fuel tanks, exhausts etc. I appreciate the metal is probably thicker but might be worth a go.
Title: Re: Removing dents with a steel ball and a magnet
Post by: taysidedragon on January 10, 2023, 04:28:20 PM
I saw that Steve. I'd like to try that. The magnet looked quite small for the power, was it an electromagnet?
Title: Re: Removing dents with a steel ball and a magnet
Post by: SteveW on January 10, 2023, 04:58:58 PM
No, just a permanent magnet.
Title: Re: Removing dents with a steel ball and a magnet
Post by: McCabe-Thiele (Ted) on January 10, 2023, 05:09:26 PM
I guess you are still left with the other problem of stretched metal to hide.
My 500 has a nice crease on the left hand front where the front fork looks as though it has met the tank - also the old column had the bent lock stop. Not sure if they are related.

In the 1970s lead filler would have sorted it - it was great stuff to work with back in the day but not on fuel tanks!
Title: Re: Removing dents with a steel ball and a magnet
Post by: Trigger on January 10, 2023, 05:35:08 PM
Any dent removal is down to the type of metal, the thickness and the access to the rear of a dent.  ;)
Title: Re: Removing dents with a steel ball and a magnet
Post by: Moorey on January 10, 2023, 08:30:09 PM

  Was the telescope tube brass and non ferrous.
Title: Re: Removing dents with a steel ball and a magnet
Post by: taysidedragon on January 10, 2023, 08:45:16 PM

  Was the telescope tube brass and non ferrous.

Yes.
Title: Re: Removing dents with a steel ball and a magnet
Post by: Moorey on January 10, 2023, 09:26:53 PM

   Then I would think most of the magnetic force would be lost to the tank and virtually no control over the bearing inside. Try it on a biscuit tin.
Title: Re: Removing dents with a steel ball and a magnet
Post by: Rozabikes Tim on January 10, 2023, 09:40:50 PM
Also thin walled and relatively soft?
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