Put Magnet Inside oil filter?

Technical aspects of automobiles, et. al., post #21,202
Author:
Date:
Subject:
 Denny B
 2008-07-05 14:05:48
 Put Magnet Inside oil filter?
Recently purchased a spare transmission pan for my
Year 2006, 3.3L Dodge Caravan. Inside the transmission
pan there is a magnet, the new pan came without the magnet.
Phoned Dodge, they told me the magnet is a separate part
and part number. I inquired if the magnet is somehow glued
to the pan and asked if they have the glue. Two different
dealers told me that the magnet is just held magnetically
to the pan, no glue or anything.

Question is, is it OK to drop a small magnet into the bottom
INSIDE of the ENGINE OIL FILTER and use the oil filter that way.
I just took an oil filter # L3001 3 1/2 inches X 5 Inches, put
a piece of heat shrink tubing down the centre and dropped a
half inch magnet through the tubing to the bottom of the filter.
It is sitting on the bottom of the filter. As I understand this centre
hole it is the oil RETURN from the engine. My thought is this magnet
could pick up any minute metal filings, before the oil is filtered and
passed through the engine again. A magnet just costs a few cents.

I know that there are magnets that attach to the outside
of oil filters, however that is not what I am dealing with here.

Are there any negative implications having a magnet inside an
engine oil filter? Has anybody first hand experience with this?

The magnet I used is a BUTTON magnet that has substantial hold to metal.

Thank you in advance

Denny B
Author:
Date:
Subject:
 Dan_Thomas_nospam@yahoo.com
 2008-07-05 09:52:31
 Re: Put Magnet Inside oil filter?
On Jul 5, 8:05 am, Denny B <[email protected]> wrote:
> Recently purchased a spare transmission pan for my
> Year 2006, 3.3L Dodge Caravan. Inside the transmission
> pan there is a magnet, the new pan came without the magnet.
> Phoned Dodge, they told me the magnet is a separate part
> and part number. I inquired if the magnet is somehow glued
> to the pan and asked if they have the glue. Two different
> dealers told me that the magnet is just held magnetically
> to the pan, no glue or anything.
>
> Question is, is it OK to drop a small magnet into the bottom
> INSIDE of the ENGINE OIL FILTER and use the oil filter that way.
> I just took an oil filter # L3001 3 1/2 inches X 5 Inches, put
> a piece of heat shrink tubing down the centre and dropped a
> half inch magnet through the tubing to the bottom of the filter.
> It is sitting on the bottom of the filter. As I understand this centre
> hole it is the oil RETURN from the engine. My thought is this magnet
> could pick up any minute metal filings, before the oil is filtered and
> passed through the engine again. A magnet just costs a few cents.
>
> I know that there are magnets that attach to the outside
> of oil filters, however that is not what I am dealing with here.
>
> Are there any negative implications having a magnet inside an
> engine oil filter? Has anybody first hand experience with this?
>
> The magnet I used is a BUTTON magnet that has substantial hold to metal.
>
> Thank you in advance
>
> Denny B

That there center hole is where the oil comes OUT of the
filter and INTO the engine. Don't put anything in there that you don't
want falling into the engine. Heat reduces a magnet's hold, remember,
and those ceramic magnets, IIRC, are the worst for demagnetizing when
hot.
Tempest aircraft filters have magnets in them. Expensive,
though, and I seldom find much metal stuck there. A magnetic drain
plug works better.

Dan
Author:
Date:
Subject:
 Calab
 2008-07-05 17:44:14
 Re: Put Magnet Inside oil filter?
"Denny B" <[email protected]> wrote in message
news:0dLbk.2250$7%6.1274@edtnps82...
| Question is, is it OK to drop a small magnet into the bottom
| INSIDE of the ENGINE OIL FILTER and use the oil filter that way.
| I just took an oil filter # L3001 3 1/2 inches X 5 Inches, put
| a piece of heat shrink tubing down the centre and dropped a
| half inch magnet through the tubing to the bottom of the filter.

Many of the filters that I've seen cut open have a valve at that end of the
filter... I can't say for sure, but the magnet could interfere with that
valve.

I'd Google for images of cut open filters and check out the type that you
have to see how it's assembled.

Other than that, it should be OK.
Author:
Date:
Subject:
 Nate Nagel
 2008-07-05 20:13:49
 Re: Put Magnet Inside oil filter?
Denny B wrote:
> Recently purchased a spare transmission pan for my
> Year 2006, 3.3L Dodge Caravan. Inside the transmission
> pan there is a magnet, the new pan came without the magnet.
> Phoned Dodge, they told me the magnet is a separate part
> and part number. I inquired if the magnet is somehow glued
> to the pan and asked if they have the glue. Two different
> dealers told me that the magnet is just held magnetically
> to the pan, no glue or anything.
>
> Question is, is it OK to drop a small magnet into the bottom
> INSIDE of the ENGINE OIL FILTER and use the oil filter that way.
> I just took an oil filter # L3001 3 1/2 inches X 5 Inches, put
> a piece of heat shrink tubing down the centre and dropped a
> half inch magnet through the tubing to the bottom of the filter.
> It is sitting on the bottom of the filter. As I understand this centre
> hole it is the oil RETURN from the engine. My thought is this magnet
> could pick up any minute metal filings, before the oil is filtered and
> passed through the engine again. A magnet just costs a few cents.
>
> I know that there are magnets that attach to the outside
> of oil filters, however that is not what I am dealing with here.
>
> Are there any negative implications having a magnet inside an
> engine oil filter? Has anybody first hand experience with this?
>
> The magnet I used is a BUTTON magnet that has substantial hold to metal.
>
> Thank you in advance
>
> Denny B

Won't hurt anything, unless you left the heat shrink in place (the way
I'm envisioning this is, that you used the heat shrink simply to guide
the magnet down the tube without sticking halfway) however you won't get
it out unless you cut it open. You would get the same benefit simply by
using a larger/stronger magnet and sticking it to the outside of the oil
filter and/or bottom of the oil pan.

nate

--
replace "roosters" with "cox" to reply.
http://members.cox.net/njnagel
Author:
Date:
Subject:
 Dan_Thomas_nospam@yahoo.com
 2008-07-05 18:49:22
 Re: Put Magnet Inside oil filter?
On Jul 5, 6:13 pm, Nate Nagel <[email protected]> wrote:
> Denny B wrote:
> > Recently purchased a spare transmission pan for my
> > Year 2006, 3.3L Dodge Caravan. Inside the transmission
> > pan there is a magnet, the new pan came without the magnet.
> > Phoned Dodge, they told me the magnet is a separate part
> > and part number. I inquired if the magnet is somehow glued
> > to the pan and asked if they have the glue. Two different
> > dealers told me that the magnet is just held magnetically
> > to the pan, no glue or anything.
>
> > Question is, is it OK to drop a small magnet into the bottom
> > INSIDE of the ENGINE OIL FILTER and use the oil filter that way.
> > I just took an oil filter # L3001 3 1/2 inches X 5 Inches, put
> > a piece of heat shrink tubing down the centre and dropped a
> > half inch magnet through the tubing to the bottom of the filter.
> > It is sitting on the bottom of the filter. As I understand this centre
> > hole it is the oil RETURN from the engine. My thought is this magnet
> > could pick up any minute metal filings, before the oil is filtered and
> > passed through the engine again. A magnet just costs a few cents.
>
> > I know that there are magnets that attach to the outside
> > of oil filters, however that is not what I am dealing with here.
>
> > Are there any negative implications having a magnet inside an
> > engine oil filter? Has anybody first hand experience with this?
>
> > The magnet I used is a BUTTON magnet that has substantial hold to metal.
>
> > Thank you in advance
>
> > Denny B
>
> Won't hurt anything, unless you left the heat shrink in place (the way
> I'm envisioning this is, that you used the heat shrink simply to guide
> the magnet down the tube without sticking halfway) however you won't get
> it out unless you cut it open. You would get the same benefit simply by
> using a larger/stronger magnet and sticking it to the outside of the oil
> filter and/or bottom of the oil pan.
>
> nate
>
> --
> replace "roosters" with "cox" to reply.http://members.cox.net/njnagel

The steel can or oil pan will short-circuit much of the
flux path, making the magnet less than effective. That's why the
magnetic drain plug has the magnet on the inside end.

Dan
Author:
Date:
Subject:
 Dan_Thomas_nospam@yahoo.com
 2008-07-05 18:56:25
 Re: Put Magnet Inside oil filter?
On Jul 5, 6:13 pm, Nate Nagel <[email protected]> wrote:

> Won't hurt anything, unless you left the heat shrink in place (the way
> I'm envisioning this is, that you used the heat shrink simply to guide
> the magnet down the tube without sticking halfway) however you won't get
> it out unless you cut it open. You would get the same benefit simply by
> using a larger/stronger magnet and sticking it to the outside of the oil
> filter and/or bottom of the oil pan.

There's a magnetic ring for that, now.

The oil path is shown through the filter, here, along with
a magnetic ring:
http://www.kic-oil.com/engine-oil-bible.html

Dan
Author:
Date:
Subject:
 Scott Dorsey
 2008-07-06 10:40:07
 Re: Put Magnet Inside oil filter?
In article <0dLbk.2250$7%6.1274@edtnps82>, Denny B <[email protected]> wrote:
>Recently purchased a spare transmission pan for my
>Year 2006, 3.3L Dodge Caravan. Inside the transmission
>pan there is a magnet, the new pan came without the magnet.
>Phoned Dodge, they told me the magnet is a separate part
>and part number. I inquired if the magnet is somehow glued
>to the pan and asked if they have the glue. Two different
>dealers told me that the magnet is just held magnetically
>to the pan, no glue or anything.

The magnet is good.

>Question is, is it OK to drop a small magnet into the bottom
>INSIDE of the ENGINE OIL FILTER and use the oil filter that way.

No need to. You already have a magnet in your drain plug which does
precisely the same thing. That's why you should always wipe the drain
plug when you change your oil.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."