Quick oil plug question

[Charlie98]

Bought a replacement oil plug for the 796... want to make sure it's the correct one.  The factory one uses a copper crush washer... the replacement a rubber O-ring.  Just making sure it's correct... it doesn't seem like it would be a correct replacement.

EDIT:  And what would a good torque value be?  20Nm?



The new plug is probably 8-10 pounds lighter, so I figure I'll see a net HP gain of around 30...  at least that's what I heard.  

[DarkMonster620]

get an oem washer and dont forget to dab a drop of silicone on the threads and use the same torque as oem, about 15Nm

[stopintime]

The OEM washer won't compress properly - IMO use the rubber ring and check that it seats as intended.

[ducpainter]

Maybe it's just me, but I don't like the design of that plug.

It drastically reduces the number of threads that engage the cases.

...and I'm going to disagree with Carlos about the silicone sealer on the threads.

[Charlie98]

The OEM washer won't compress properly - IMO use the rubber ring and check that it seats as intended.

Correct, because there is a groove (seat) for the O-ring in the cap rim of the plug.

I went ahead and installed it, and marked it with a paint marker; I'll be checking it pretty frequently before I ride.  I thought 20Nm was too much, and only did 15.

Duc, it's really only missing about one turn of threads, and I don't think it would matter given they are at the base... the overall length of the plug itself (minus the magnet) is about the same.  I really don't like the design of the OEM plug... the small socket head most notably.

[Speeddog]

If you look *very* closely at the pic, there's a groove in the sealing face of that bolt, for the O-ring.

If they've done it correctly, and the mating face of the cases isn't compromised, it will seal just fine.
Same torque as the OEM would be where I'd start.

That head looks to be quite hollowed out, and has the holes for safety wire, so use a 6-point socket or box wrench.

[NAKID]

Correct, because there is a groove (seat) for the O-ring in the cap rim of the plug.

I went ahead and installed it, and marked it with a paint marker; I'll be checking it pretty frequently before I ride.  I thought 20Nm was too much, and only did 15.

Duc, it's really only missing about one turn of threads, and I don't think it would matter given they are at the base... the overall length of the plug itself (minus the magnet) is about the same.  I really don't like the design of the OEM plug... the small socket head most notably.

I use the same plug (in black) on my 821 and have done 2 oil changes since it was first installed. I have had no issues with it sealing properly.