Magnetic oil drain plugs?

2daMax

Active Member
Joined
Jun 3, 2015
Messages
675
Location
Penang, Malaysia
got mine from aliexpress.com. they weren't expensive and do catch a lot of debris. I have them 2 oil changes ago and both times, I do noticed quite a lot of debris caught onto them.
 

SHUMBA

Well-Known Member
Joined
Dec 29, 2018
Messages
1,242
Location
ONTARIO, CANADA
Magnetic drain plugs are found on just about every gas-turbine or jet-engine, including turbo-props as well. I flew mostly turbo-props for thirty years and had one catastrophic engine failure. The front bearing let go in flight, a slight unusual noise, a buzz, then we focused on the oil pressure which slowly began to fall. We reduced the engine to idle and just landed using the other engine. No big deal.
Our mechanic removed the engine oil drain plug which was a magnetic plug. There was so many metal filings that the filings filled have of the oil sample jar. No magnetic plug required here. A magnetic plug will detect trends in internal engine problems. I will not bother to fit my S-Ten with mag-plugs because I have great faith in Japanese engineering and machining. Just my 2 cents worth...
 

pkelly20

Member
Joined
Aug 29, 2017
Messages
49
Location
Canada
Magnetic drain plugs are found on just about every gas-turbine or jet-engine, including turbo-props as well. I flew mostly turbo-props for thirty years and had one catastrophic engine failure. The front bearing let go in flight, a slight unusual noise, a buzz, then we focused on the oil pressure which slowly began to fall. We reduced the engine to idle and just landed using the other engine. No big deal.
Our mechanic removed the engine oil drain plug which was a magnetic plug. There was so many metal filings that the filings filled have of the oil sample jar. No magnetic plug required here. A magnetic plug will detect trends in internal engine problems. I will not bother to fit my S-Ten with mag-plugs because I have great faith in Japanese engineering and machining. Just my 2 cents worth...
I see the magnetic plugs as more of an indication of whether metal is being picked up by your engine oil. I don’t believe the plugs attract every piece of metal. The magnetic field isn’t that strong. They provide you with a visual sign that something is going on when you pull them at oil change time. Otherwise you would have to cut into your filter to have a look.

My feeling is that most metal would still be caught in your filter.


Sent from my iPhone using Tapatalk
 

mrpete64

Member
Joined
Jun 14, 2014
Messages
427
Location
upstate new York
I've have used Gold Plugs on all my bikes over the years. I, personally, think they are worth the money. Especially with you break in a bike. Even after a few years of riding a bike you will be surprised how much you might find on the magnet.

Mr. Pete---------->
aging hippie
 

Grumpy

Getting old is not for wimps
Joined
May 28, 2013
Messages
411
Location
Surbiton U.K.
This is just a thought, would the magnetic drain plug in the drive shafts' axle housing also fit the sump? If someone is doing a sump and final drive oil change soon (unfortunatly I did mine not long ago) could they measure the drain bolts to see if they are interchangeable. If so, the Yamaha magnetic bolt is only £8.40, about $12+pp.
 
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