sharing an experience

[darrsi]

[quote author=darrsi link=topic=26267.msg316545#msg316545 date=1592541472]
Out of curiosity, would you know if you have an original sump plug on the bike?
The reason i ask is because a lot of aftermarket sump plugs, like the magnetic ones for example are shorter with less threads, and will feel like they are cross threading almost immediately when you go to tighten them up if the sump thread has been damaged or weakened by over tightening.


If somebody has decided to change the sump plug just because of the magnetic option, then that "may" be the issue. Just a thought.


OEM plugs are longer in length and even though you don't need all the threads they somehow do tighten up much more convincingly.
I have tried this myself so it is from personal experience.
Because of the position these plugs are in a torque wrench normally isn't an option but they only need nipping up by hand anyway.


I did end up getting a replacement OEM sump plug as the magnetic one just didn't feel right and the new one nipped up fine and has never leaked.
Maybe the threads are simply better on the OEM plugs and it appreciated them being new?

actually this was the cause of the problem in the first place, using one of those short thread mag bolts.  now after the event i know you need less torque on these because they are shorter threads,  therefore same force over a smaller thread size amplifies the stress on the threads and hence i stripped the threads that otherwise was fine on the longer OEM bolt.
also its very dificult as we all know to access the sump bolt with anything other than a ring or open end spanner, so diffcult to know what force you are applying .  personally 40nm is too much i think, thats what i was trying to emulate by hand ?
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Have you replaced the bolt for an OEM one?