Leaking LN Magnetic Drain Plug!

[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

[Homeoboxter]

Not related to this reuse-not-to-reuse debate, but maybe helpful for the OP: I struggled a lot with the oil lines on my motorcycle where I fitted a pressure gauge with banjos. I tried copper and aluminum flat washers, but they all leaked, because the pressure is high at those lines and the thread at the banjo bolt didn`t withstand high torque. So I found these aluminum crush washers with a rubber insert and they worked perfectly. It creates a very good seal even when tightened to a low torque. Newer Japanese bikes use it for brake lines. For example:

https://www.ebay.com/itm/Oil-Drain-Plug-Metal-Rubber-MR21-Crush-Seal-Washer-Set-of-10-for-Toyota-Lexus/273351435154?hash=item3fa503e392:g:LmkAAOSwSixbRtm 6

Definitely not reusable.

[njbray]

Thanks for all the replies.
So I tested my torque wrench and it is between 19.2 NM and 20.1 NM when set at 19 NM. Not sure if this would damage the plug.
I have read on some other forums that the aluminum washer that comes with them may be too hard and it's better to use a genuine Porsche washer!
Anyway..it's still dripping so I guess I have to swap it out and use a new washer or a new plug!

[Frodo]

Have you tried torquing just slightly more?
That worked just fine the one time I under did it during an oil change.
Drain plugs---regardless of where sourced---have to be cranked quite a bit to strip them. In my experience anyway. (ie I've never stripped one.)

[rexcramer]

So somebody double check me on this. I believe the torque spec is in ftlb not nm? And 19 nm would only be +/-14 ftlbs? It isn't tight enough by +/- 5 lbs? Thus causing the leak?

Originally Posted by njbray

Thanks for all the replies.
So I tested my torque wrench and it is between 19.2 NM and 20.1 NM when set at 19 NM. Not sure if this would damage the plug.
I have read on some other forums that the aluminum washer that comes with them may be too hard and it's better to use a genuine Porsche washer!
Anyway..it's still dripping so I guess I have to swap it out and use a new washer or a new plug!

[1PorscheBoxster986]

It is 50Nm (37 ft-lb) for the factory plug. For the magnetic plug it is 19 ft-lb and 26Nm rounded up NJBray. You either mistyped or we just found where your mistake is.