My take on the Magnetic Oil Filter Housing

[Steve Tinker]

If that is standard electrical heatshrink, I doubt if it will be robust enough to withstand the +/- 100 deg C oil temperature for very long. You will find it may go brittle & fatigue with extended high temps - at least it does on electrical joints that suffer a high resistance fault.
Personally I would have used S/S hose clamps to secure the magnets.

[Pdwight]

Thanks Steve, I think the duty rating on this is 170C in temp. Is the thickness of a truck tire inner tube...or perhaps a bit thicker....time will tell

[JayG]

Originally Posted by Pdwight

Thanks Steve, I think the duty rating on this is 170C in temp. Is the thickness of a truck tire inner tube...or perhaps a bit thicker....time will tell

Dwight, where did you get the heat shrink?

[Pdwight]

Originally Posted by JayG

Dwight, where did you get the heat shrink?

That was the most difficult to find, lots of folks have 4 inch heat shrink.....but they want you to buy a roll at several hundred dollars..............but ;

https://www.wirecare.com/product.asp?pn=WC53706020

[78F350]

Looks good. I have 2 done so far with the hose clamp. Heatshrink tubing looks like a great idea.
To initially apply the magnets, I used JB KwikWeld. I did them one after the other doing opposing sides of the housing. Even so, they started to slump towards each other a little until I put on zip-tie and the tape. The JB Weld alone may hold, but I am going to do the heatshrink.

[JayG]

Originally Posted by Steve Tinker

If that is standard electrical heatshrink, I doubt if it will be robust enough to withstand the +/- 100 deg C oil temperature for very long. You will find it may go brittle & fatigue with extended high temps - at least it does on electrical joints that suffer a high resistance fault.
Personally I would have used S/S hose clamps to secure the magnets.

I don't believe the oil filter housing will get anywhere near that temp
The oil in the engine, sure, but not the outside of the filter housing

[jb92563]

FYI: The Samarium Cobalt magnets are better for high temp locations.

Since Oil temps can reach about 240C the Neodium Magnets may be ok
on the outside of the filter as they tolerate up to 175 C, anything inside will need the SmCo which can stand 250 C temps without losing magnetism.

I used the SmCo magnets on the outside of the filter and they are proven to work, and I'll never have to replace them. I think the set of 7 were about $30, but I can't find the source where I got them from at the moment.

[Steve Tinker]

Originally Posted by jb92563

Since Oil temps can reach about 240C the Neodium Magnets may be ok
on the outside of the filter as they tolerate up to 175 C, anything inside will need the SmCo which can stand 250 C temps without losing magnetism.

I doubt very much the oil reaches 240 deg C - I wouldn't want my oil more that 120 max....

JayG - you must have asbestos palms !!

[jb92563]

Originally Posted by jb92563

FYI: The Samarium Cobalt magnets are better for high temp locations.

Since Oil temps can reach about 240C the Neodium Magnets may be ok
on the outside of the filter as they tolerate up to 175 C, anything inside will need the SmCo which can stand 250 C temps without losing magnetism.

I used the SmCo magnets on the outside of the filter and they are proven to work, and I'll never have to replace them. I think the set of 7 were about $30, but I can't find the source where I got them from at the moment.

Ooops, correction those engine oil temps are 240 F not C, however the magnet temps are in deg C so 175 C = 347 F so the Neodium Magnets are also well within their range and will do just fine.

Thanks for catching that guys.

[Pdwight]

SO now once these super magnets magnetize or polarize the minute metal particles we have to figure out a way to turn them into Nanites and program them to constantly sacrifice themselves to constantly rebuild the IMS and other bearing surfaces and then our Boxsters will last forever....of course if we had that tecnology we could sell it and buy Porsche LLC

[jb92563]