oil filter bone dry
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Seasoned HDF Member
Joined: Aug 2013
Posts: 35,727
Likes: 38,333
From: Post Falls, ID
I'll keep an eye on it, maybe change the filter again in the near future just to settle my concern.
No fuzz was seen on the drain plug magnet.
Th bike was parked vertical and not on the jiffy stand, maybe that helped drain the filter.
Last edited by upflying; Sep 9, 2024 at 09:58 AM.
Seasoned HDF Member
Joined: May 2012
Posts: 32,934
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From: Carlsbad, CA
Change the oil, put in a new filter without putting oil in it.. Pull the plugs, run the starter motor for a while. The pull the filter and see if it has oil in it. If it’s still dry..I’d suspect the pump is fubarred. .
Tourer
Joined: Nov 2006
Posts: 448
Likes: 20
From: In a van, down by the river
Had exact same happen with an '08 Dyna I had years ago. Bought used, bike ran perfect, no oil lights or anything, went to change oil and the filter was dry, same as yours. Filled it with fresh oil, cranked engine with plug wires removed until oil started coming out where filter screws on, put new filter on. Ran bike few minutes, unscrewed filter to check if had oil, plenty came out. Somehow air must have gotten in the pump and oil never made it up to the filter, during this dry filter condition dirty oil circulated fine through the engine. Sold bike to buddy, its been fine to this day.
Seasoned HDF Member
Joined: May 2017
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From: NorCal
Had exact same happen with an '08 Dyna I had years ago. Bought used, bike ran perfect, no oil lights or anything, went to change oil and the filter was dry, same as yours. Filled it with fresh oil, cranked engine with plug wires removed until oil started coming out where filter screws on, put new filter on. Ran bike few minutes, unscrewed filter to check if had oil, plenty came out. Somehow air must have gotten in the pump and oil never made it up to the filter, during this dry filter condition dirty oil circulated fine through the engine. Sold bike to buddy, its been fine to this day.
HDF Community Team
Joined: Aug 2018
Posts: 3,016
Likes: 1,194
From: New Hampsha
Isn't the bypass valve inside the filter?
Seems at least some do not have an anti-drainback valve.
Seems at least some do not have an anti-drainback valve.
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Seasoned HDF Member
Joined: May 2017
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From: NorCal
Yes it's inside the filter. It causes the oil to "bypass" the media for reasons like a clogged media or too thick of an oil.
HDF Community Team
Joined: Aug 2018
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From: New Hampsha
Right, but the filter would still be full of oil, or at least show signs of having been filled at one time. In other words, oil cannot lube the engine unless it first fills the filter canister.