Leaking LN Magnetic Drain Plug!

[maytag]

Originally Posted by piper6909

PS: Those washers in the link you sent don't look like crush washers, they look like flat washers.

a rose by any other name.....

an aluminum flat washer IS a crush washer. intended-or-not, haha.

I just did a quick search and posted the first hit. pick your own damned assortment!

hahahaha.

And yes, extend that olive branch. 78F350 is absolutely one of the "good guys" around here. watch how quietly and with little drama he goes about helping the forum members. He never asked me for a pat on the back, but I'ma give-em up anyway.

[piper6909]

Originally Posted by maytag

a rose by any other name.....

an aluminum flat washer IS a crush washer. intended-or-not, haha.

I get it that it's soft metal, but when I think crush washers I think rolled metal ones that are hollow inside and flatten as you tighten them.

I guess aluminum is more like the cheap version of brass washers.

[maytag]

Originally Posted by piper6909

I get it that it's soft metal, but when I think crush washers I think rolled metal ones that are hollow inside and flatten as you tighten them.

I guess aluminum is more like the cheap version of brass washers.

I can't remember the last time I saw a crush washer of the type you're describing. I HAVE seen them, so I know what you're talking about, but all I've ever seen used over the last 30 years (including factory parts for Porsche & Ferrari) is the Flat Washer of (usually) aluminum, but occasionally copper. (Never brass. Alu and Cu are MUCH more malleable than brass).

Here's the Porsche Brand washer for the referenced application, you'll note it is a flat, alu washer.
https://www.pelicanparts.com/More_Info/90012310630OEM.htm?pn=900-123-106-30-OEM&bt=Y&fs=0&SVSVSI=1052

Where do YOU buy a crush-washer of the type you're describing?

[piper6909]

Originally Posted by maytag

I can't remember the last time I saw a crush washer of the type you're describing. I HAVE seen them, so I know what you're talking about...

Where do YOU buy a crush-washer of the type you're describing?

Subaru still uses them. In fact, IIRC, that's the first time I heard the term 'crush washer' so naturally that's what I think of when I hear it.

https://www.amazon.com/Genuine-Subaru-803916010-Gasket-Pack/dp/B00IW33NRO/ref=asc_df_B00IW33NRO/?tag=hyprod-20&linkCode=df0&hvadid=241948264947&hvpos=&hvnetw=g&hvrand=4423746194248373463&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9005888&hvtargid=pla-449381752974&psc=1

Originally Posted by maytag

...Never brass. Alu and Cu are MUCH more malleable than brass...

I always thought they used brass washers on banjo bolts and the like. Maybe it was copper, or a copper alloy that had a brass color.

[10/10ths]

....My point was only that LN lists a torque spec in their instructions.

The torque spec is there for a reason. The reason being that if you OVER torque their magnetic drain plug, the magnetic insert will “spin” inside the plug body and you will develop an oil leak.

That is why you SHOULD use a torque wrench EVERY time on the LN magnetic drain plug. The other issue is that their drain plug has a LOWER torque spec than the OEM drain plug.

So, you have a tool that can tell you exactly what the torque is. It just seems logical that you would want to ensure your car doesn’t develop an oil leak.

As far as the crush washer, well....yeah, you should use a new one every time. The idea is that they CRUSH upon use. So logically, you want one that has not been crushed when you replace it.

Crush washers are less than a dollar each. When you order an oil filter, order a dozen crush washers and you are set for years.

It’s really simple.

My point was that if you invested in a Porsche, invest a few bucks on crush washers and a torque wrench and keep her happy.

That was all.

The cost of ownership includes service.

It’s like guys who buy Mustangs and complain that the rear tires cost $200.

Buying a “cheap” old Boxster gets real expensive if you don’t properly maintain her.

That is what my “washers are cheap and engines are expensive” comment was all about.

Cheers, everyone.

Enjoy the drive.

[Frodo]

As this thread has demonstrated, we don't fully agree here—I have had/used the LN magnetic plug since Aug, 2009, and have never once used a torque wrench on it. And I do think I've kept my machine "happy," notwithstanding having recycled a few crush rings.

That said, I do understand, and respect, what you're saying.

Cheers as well. I will enjoy the drive, have been for 14 years...what's not to enjoy??

[10/10ths]

Watch out for the cops.

[piper6909]

Originally Posted by Frodo

As this thread has demonstrated, we don't fully agree here

And that's not necessarily a bad thing. Can you imagine how boring that would be?

I respect everyone's input here, whether I agree with it or not. And I can take (and throw) friendly jabs here and there. But I have no personal animus towards anyone.

Right back atcha: Cheers all!

[steved0x]

Originally Posted by maytag

I can't remember the last time I saw a crush washer of the type you're describing. I HAVE seen them, so I know what you're talking about, but all I've ever seen used over the last 30 years (including factory parts for Porsche & Ferrari) is the Flat Washer of (usually) aluminum, but occasionally copper. (Never brass. Alu and Cu are MUCH more malleable than brass).

Here's the Porsche Brand washer for the referenced application, you'll note it is a flat, alu washer.
https://www.pelicanparts.com/More_Info/90012310630OEM.htm?pn=900-123-106-30-OEM&bt=Y&fs=0&SVSVSI=1052

Where do YOU buy a crush-washer of the type you're describing?

When I changed out the oil on my Toyota FJ Cruiser diffs and transfer case, a couple of the Toyota washers were like this (and a couple weren't...) I thought it was odd that they all weren't the same, but with the rolled edge you could really see and feel it crush down when you tightened it.

[maytag]

Originally Posted by steved0x

When I changed out the oil on my Toyota FJ Cruiser diffs and transfer case, a couple of the Toyota washers were like this (and a couple weren't...) I thought it was odd that they all weren't the same, but with the rolled edge you could really see and feel it crush down when you tightened it.

yeah, probably like most items, they source from the cheapest mfr with the same spec.

I honestly can't remember the last time I saw a crush-washer like that though. (I've never owned a toyota, believe it or not! I might need to rectify that soon!)

[blue62]

Maytag,

Look at the washer on a spark plug.

[maytag]

Originally Posted by blue62

Maytag,



Look at the washer on a spark plug.

Yeah, but that's an entirely different situation. And, while I get that it IS, I've certainly never referred to that as a crush washer. ;-)

Sent from my SM-G970U using Tapatalk

[piper6909]

Originally Posted by maytag

watch how quietly and with little drama he goes about helping the forum members.

I guess implying that those who don't think the way he does fall out of bed head-first is 'little drama" in your opinion?

Or maybe it just wasn't one if his better moments?

Either way, I was joking in my response and I hope he understands that.

By the way, it was also aimed at 10/10ths, who implied that re-using a crush washer puts your engine at risk. A 2-fer, if you will. I'm extending a peace offering to him as well.

[78F350]

Honestly I am not a hard core washerist; I do have a couple baggies of them in various sizes, but I also may have on occasion picked a used one off the garage floor and stuck it on a plug before tightening it with Vice-Grips.

The discussion was getting a little polarized, so I just thought it would be fun to give it a push.

[Frodo]

Originally Posted by 78F350

The discussion was getting a little polarized, so I just thought it would be fun to give it a push.

Been known to do that on occasion myself!

[1PorscheBoxster986]

This will be too funny if the source of njbray's leaking oil problem is not the LN magnetic plug as suspected but the re-use of the crush washer that has taken over this thread. No that will not prove anything but stir up the discussion.

To torque or not to torque? To new or to re-use? Those are the questions.