Magnetic Oil Drain plugs - options and results
10-25-10, 02:47 PM
#77
damn it, I saw SARD had some for $5 but they're all out of stock. our size too, m14x1.5
http://www.more-japan.com/halloween-sale-sard/
http://www.more-japan.com/halloween-sale-sard/
10-25-10, 03:10 PM
#78
Rotary Enthusiast
All hondas have same size plug so shouldn't be too hard to find. I think plug magnet would be a lot better than filter magnet as the filter is under pressure.
10-25-10, 05:23 PM
#80
Just FYI in case you guys didn't notice it...
The Honda and other oil drain plugs probably won't work b/c they are too long. The FD plug is short and hits a stoppage if you try and screw in something too long. That is why Richard at Drain Plug Magnets and I worked on creating a FD/RX7 specific application that was shorter:
http://www.drainplugmagnets.com/mazda.php
10-25-10, 07:01 PM
#81
Rotary Enthusiast
No the oil pan is not under pressure. If the drain plug gasket is bad it drips oil.. If the filter gasket is bad it sprays everywhere.
No Honda plugs are not longer. Honda plugs made for aluminum pans are yes but most are short thread. I have a Honda plug in now.
No Honda plugs are not longer. Honda plugs made for aluminum pans are yes but most are short thread. I have a Honda plug in now.
11-03-10, 12:13 PM
#82
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Oil filters that have a built in magnet? SARD OIL FILTERS
11-03-10, 05:00 PM
#83
I would vote for the drain pan plug. Reason being that ferrous particles are heavier and they slosh around in the bottom of the oil pan without all getting sucked up to the filter. Being heavy, they don't even drain out during oil changes, so a magnet is the only sure way to collect them.
Gracer, please note the results of your next oil change. I have a hunch you collected particles that were there for a long time and you will find a lot less particles on subsequent oil changes. We find that happens when we sell a brand new gear reducer since it's very hard to build things perfectly clean and the first few hours of loaded operation tend to liberate most of the particles right away.
The next time I buy stuff from Digikey or McMaster, I'll have to pick up a small magnet and JB weld it on the end of my stock plug. (Edit: McMaster 5857K11 might fit). That should work just as well for a couple of dollars.
David
Gracer, please note the results of your next oil change. I have a hunch you collected particles that were there for a long time and you will find a lot less particles on subsequent oil changes. We find that happens when we sell a brand new gear reducer since it's very hard to build things perfectly clean and the first few hours of loaded operation tend to liberate most of the particles right away.
The next time I buy stuff from Digikey or McMaster, I'll have to pick up a small magnet and JB weld it on the end of my stock plug. (Edit: McMaster 5857K11 might fit). That should work just as well for a couple of dollars.
David
Last edited by dgeesaman; 11-03-10 at 08:48 PM.
11-03-10, 05:50 PM
#84
I would vote for the drain pan plug. Reason being that ferrous particles are heavier and they slosh around in the bottom of the oil pan without all getting sucked up to the filter. Being heavy, they don't even drain out during oil changes, so a magnet is the only sure way to collect them.
Gracer, please note the results of your next oil change. I have a hunch you collected particles that were there for a long time and you will find a lot less particles on subsequent oil changes. We find that happens when we sell a brand new gear reducer since it's very hard to keep things perfectly clean and the first few hours of loaded operation tend to liberate most of the particles right away.
The next time I buy stuff from Digikey or McMaster, I'll have to pick up a small magnet and JB weld it on the end of my stock plug. (Edit: McMaster 5857K11 might fit). That should work just as well for a couple of dollars.
David
Gracer, please note the results of your next oil change. I have a hunch you collected particles that were there for a long time and you will find a lot less particles on subsequent oil changes. We find that happens when we sell a brand new gear reducer since it's very hard to keep things perfectly clean and the first few hours of loaded operation tend to liberate most of the particles right away.
The next time I buy stuff from Digikey or McMaster, I'll have to pick up a small magnet and JB weld it on the end of my stock plug. (Edit: McMaster 5857K11 might fit). That should work just as well for a couple of dollars.
David
Willl do David. Did you notice my oil analysis?
https://www.rx7club.com/showpost.php...6&postcount=94
11-03-10, 06:20 PM
#85
Anyone uses a transmission fluid magnetic drain plug? I read a lot of thread that owners are finding shavings in their tranny fluid when they drain theirs. If yes, where do you guys buy one? What is the thread size and pitch it is? I have done searches on it and cannot find one for transmission, all I see is for engine oil. Thanks.
i recently changed my tranny and diff oil to Amsoil 80/90 and Amsoil Gear lube respectively.
i checked the drain plugs and they are indeed magnetic..... mine had what looked like sludge buildup in it. I called a transmission shop and they said this "sludge" is normal for cars this age because its the normal wear of the bearings, gears etc etc that the magnet captures and overtime this will buildup and look like grey sludge.
they said as long as i clean out the plugs the magnet should be fine.
11-03-10, 09:22 PM
#86
The manual transmissions have a donut magnet bolted to the floor pan. You can clean this by removing the rectangular pan during an oil change.
Gracer, I'm not an engine oil analysis expert but my personal experience is that if you don't mind the cost of the tests, it's worth getting a VOA and running a test for more than one oil change. Comparing to absolute "alarm" or "normal" numbers is much less insightful than tracking trends in your particular application.
David
Gracer, I'm not an engine oil analysis expert but my personal experience is that if you don't mind the cost of the tests, it's worth getting a VOA and running a test for more than one oil change. Comparing to absolute "alarm" or "normal" numbers is much less insightful than tracking trends in your particular application.
David
11-04-10, 11:46 PM
#87
My experience confirms your hunch: I did a second oil change over 3500 miles interval. Did not find alot of particles as during the first time.
I would vote for the drain pan plug. Reason being that ferrous particles are heavier and they slosh around in the bottom of the oil pan without all getting sucked up to the filter. Being heavy, they don't even drain out during oil changes, so a magnet is the only sure way to collect them.
Gracer, please note the results of your next oil change. I have a hunch you collected particles that were there for a long time and you will find a lot less particles on subsequent oil changes. We find that happens when we sell a brand new gear reducer since it's very hard to build things perfectly clean and the first few hours of loaded operation tend to liberate most of the particles right away.
David
Gracer, please note the results of your next oil change. I have a hunch you collected particles that were there for a long time and you will find a lot less particles on subsequent oil changes. We find that happens when we sell a brand new gear reducer since it's very hard to build things perfectly clean and the first few hours of loaded operation tend to liberate most of the particles right away.
David
03-19-11, 10:38 PM
#88
Just did another oil change. The magnetic drain plug did not accumulate nearly as much material as it did in the first oil change.
I am also sending another sample of my oil to Blackstone for analysis. Will post results in the used oil analysis thread.
I am also sending another sample of my oil to Blackstone for analysis. Will post results in the used oil analysis thread.
04-13-11, 07:10 PM
#89
Dimple has two Mazda plugs listed in their website and they both seem low profile, one of them being the newer one. Which one is for the RX7?
http://www.drainplugmagnets.com/mazda.php
Also I don't know why the new one is more expensive
http://www.drainplugmagnets.com/mazda.php
Also I don't know why the new one is more expensive
04-13-11, 09:23 PM
#92
I asked the same question to Richard the owner of Drainplugmagnets.com and this is his reply:
"Since you have seen the web site there has been a change in our whole line. We have a new line of washer type plugs and they are available now, only not on the web site just yet till this week end.
They are $29.95 and are fantastic!. Order the SS M14X1.5 and you will receive the New washer type M14X1.5, SHORT . Which is for your vehicle. Made in USA."
He sounds quite passionate about his plugs
I just ordered one anyway.
"Since you have seen the web site there has been a change in our whole line. We have a new line of washer type plugs and they are available now, only not on the web site just yet till this week end.
They are $29.95 and are fantastic!. Order the SS M14X1.5 and you will receive the New washer type M14X1.5, SHORT . Which is for your vehicle. Made in USA."
He sounds quite passionate about his plugs
I just ordered one anyway.
04-14-11, 12:48 PM
#93
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i don't think you need one, but it is nice to have.
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