Author Topic: magnetize your oil filter  (Read 14011 times)

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Offline dave500

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magnetize your oil filter
« on: March 09, 2012, 07:48:30 pm »
next time you replace your oil filter,first find a couple of old computer hard drives and remove the magnets,youll most likely need a small set of torx bits to open one,then place them on your oil filter,theyll trap the most most fine particles.

Offline simon#42

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Re: magnetize your oil filter
« Reply #1 on: March 11, 2012, 03:48:58 pm »
good idea this , well respected liverpool bike tuner harold hall invented the magnom oil filter in the 60's . bit more sophisticated than dave's but a similar idea . its now fitted to the ducati motogp bike and the Ferrari f1 gearbox amongst others .

Offline dave500

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Re: magnetize your oil filter
« Reply #2 on: March 12, 2012, 12:02:35 am »
magnets are often placed in automatic transmission pans and diffs.

Offline Retro Rocket

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Re: magnetize your oil filter
« Reply #3 on: March 12, 2012, 12:32:08 am »
Note to self.....keep old hard drives..... ;D ;)
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Offline LesterPiglet

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Re: magnetize your oil filter
« Reply #4 on: March 12, 2012, 03:08:28 am »
Yep, the classic mini has a magnetized sump drain bolt.
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Offline faux fiddy

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Re: magnetize your oil filter
« Reply #5 on: March 19, 2012, 12:25:06 am »
next time you replace your oil filter,first find a couple of old computer hard drives and remove the magnets,youll most likely need a small set of torx bits to open one,then place them on your oil filter,theyll trap the most most fine particles.


Note to self.....keep old hard drives..... ;D ;)

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Offline Terry in Australia

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Re: magnetize your oil filter
« Reply #6 on: March 19, 2012, 12:45:27 am »
I've been putting magnetic sump plugs in all my bikes for years Dave, but I don't know if an oil filter's performance would be improved by the addition of magnets though, an oil filter can separate and suspend tiny pieces of metal (steel, aluminum, iron etc) measured in microns, due to the construction of the filter media.

Considering that the filter separates and traps tiny metal particles anyway, what's the benefit of the magnets? Cheers, Terry. ;D     
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Offline dave500

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Re: magnetize your oil filter
« Reply #7 on: March 19, 2012, 01:13:54 am »
it traps a fair bit of very fine particles,almost like sludge,,its also a way to monitor how much is coming away inside,if you have a rebuilt engine you will see less and less particles untill it beds in,a magnetic drain plug dosent see as much oil over it as the inside of the filter.
« Last Edit: March 19, 2012, 01:15:37 am by dave500 »

Offline lucky

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Re: magnetize your oil filter
« Reply #8 on: August 16, 2012, 10:34:10 am »
Note to s

Yes i saved the hard drive magnets from my first computer and they are unbelievably strong!!

Offline dave500

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Re: magnetize your oil filter
« Reply #9 on: August 18, 2012, 11:25:05 pm »
heres a filter from my just rebored 550,this is after 250 kays,about one tank of fuel,you can see the fine metal everywhere,the filter will trap this but i like to see it diminish as the rings seat,normaly it has a thin black ink like film on the magnets.

that line down the middle of each magnet must be where the north/south starts and stops for the drive reader?
« Last Edit: August 18, 2012, 11:27:50 pm by dave500 »

Offline Terry in Australia

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Re: magnetize your oil filter
« Reply #10 on: August 19, 2012, 12:50:53 am »
Geez Dave, that's a lot of metal? Looks like metallic brown paint! Cheers, Terry. ;D
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Offline dave500

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Re: magnetize your oil filter
« Reply #11 on: August 19, 2012, 01:23:39 am »
yeah terry i hadnt used new oil as it was going to get fuzzed up and changed anyway,this was still a few thousand from being changed,the first runs really shed some metal!

Offline Terry in Australia

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Re: magnetize your oil filter
« Reply #12 on: August 19, 2012, 02:27:20 am »
Yeah Dave, when I rebuilt mine I thought the stuff in the oil was silver overspray that had washed off in the oil, until I poked a magnet in there! Cheers, Terry. ;D
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Offline dave500

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Re: magnetize your oil filter
« Reply #13 on: August 25, 2012, 12:37:19 am »
another 250 kays and this is how it looks,its shedding less metal and its finer aswell,i still havent ventured over 6000 yet.

it wipes off easy with a rag.
« Last Edit: August 25, 2012, 12:39:49 am by dave500 »

Offline goldarrow

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magnetize your oil filter
« Reply #14 on: August 28, 2012, 11:46:26 pm »
Does it matter which end do you put the magnets on?
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Offline dave500

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Re: magnetize your oil filter
« Reply #15 on: August 28, 2012, 11:49:15 pm »
put them toward the bolt head end,into the housing,its obvious once you have it in your hand.

Offline wannabridin

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Re: magnetize your oil filter
« Reply #16 on: August 29, 2012, 01:22:11 pm »
here you go, for those that don't have old hard drives laying around:

http://www.surpluscenter.com/item.asp?item=1-3258&catname=misc
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Offline dave500

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Re: magnetize your oil filter
« Reply #17 on: August 30, 2012, 12:36:37 am »
pickup old computers from dumpsters even?i work in the garbage industry and have a never ending supply.

Offline Retro Rocket

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Re: magnetize your oil filter
« Reply #18 on: August 30, 2012, 01:32:52 am »
pickup old computers from dumpsters even?i work in the garbage industry and have a never ending supply.

Are they rare earth magnets Dave..?
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Offline onepieceatatime

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Re: magnetize your oil filter
« Reply #19 on: August 30, 2012, 01:41:34 am »

Are they rare earth magnets Dave..?

They are neodymium magnets, so yes rare earth.
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Offline Retro Rocket

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Re: magnetize your oil filter
« Reply #20 on: August 30, 2012, 01:42:16 am »

Are they rare earth magnets Dave..?

They are neodymium magnets, so yes rare earth.

Cool, thanks
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Offline dave500

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Re: magnetize your oil filter
« Reply #21 on: August 30, 2012, 02:11:53 am »
not that rare,i find heaps of them?DOH!i found a heap of cheap shake torches(flashlights)you shake them and a feeble led glows for a while(no wonder they were in the bin?)i busted a couple open,the magnets in those will almost tilt the earth of its axis?

Offline trueblue

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Re: magnetize your oil filter
« Reply #22 on: August 30, 2012, 02:49:10 am »
Just don't snap them together, they can shatter  ::)
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Offline dave500

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Re: magnetize your oil filter
« Reply #23 on: August 30, 2012, 03:15:50 am »
yeah i learnt that first time!whoa, you wont hold them back once the attraction starts,i tried to compress them together oriented in the oppose position and its not humanly possible!its like a hover craft or something,an invisible force if you will!

Offline dave500

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Re: magnetize your oil filter
« Reply #24 on: September 01, 2012, 03:08:41 am »
ive always liked magnets,i use them in my tool chest aswell to stick things on.