docc Posted March 17 Share Posted March 17 1 hour ago, p6x said: I always have been under the assumption those oil filters are supposed to be hand tight. Even if it "does not feel right"... This is a subject of endless discussions across every forum. On my V11, I do "reasonably" hand tight, and so far, did not notice anything astray. Using a worm clamp around the filter feels "overkill". The fine thread pitch of the oil filter access makes it easy to damage. They should have opted for a coarser one, making it easier to engage. The sticking gasket from the old filter is real and should be check each and every filter change. "Hand Tight" may have applied to external automotive filters, but is a formula for disaster on a V11 . . . 5 1 Link to comment Share on other sites More sharing options...
po18guy Posted March 18 Share Posted March 18 At the prior change, I noted that the HifloFiltros have an unusually thick and compressible gasket (about 8mm). Therefore, I tighten the filter until it bottoms, and one can easily feel when it does - less than that I would fear oil pressure blowing past the "spongy" gasket. Link to comment Share on other sites More sharing options...
p6x Posted March 18 Share Posted March 18 22 hours ago, audiomick said: I think it is a fine thread for a very good reason. Confirmation, for instance, here: https://en.wikipedia.org/wiki/Screw_thread#Coarse_versus_fine or here: https://en.wikipedia.org/wiki/ISO_metric_screw_thread#Preferred_sizes Agreed with the rationale... However, this one has an o'ring. Typically, o'ring act as a lock when pressurized, since they expand into the gap to seal it. 2 Link to comment Share on other sites More sharing options...
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