M8 engine oil system??
Seasoned HDF Member
Joined: May 2008
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From: South Carolina
The Softail models have 2 balance shafts because the Softail engine is a solid mount to the frame.
The rest of the Big Twin engines only have 1 balance shaft, because the engines are rubber mounted.
Last edited by Dan89FLSTC; Dec 25, 2022 at 06:15 AM.
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From: Bates County MO
The first Softails ran apx 1/3 of a quart in the sump for inner cam bearing lubrication. The had a 1 1/2" high lip that maintained that amount in the case.
The lip only ran over then into the port thru to the oil pump in the cam galley side. The cam galley stayed full to the crank shaft bearing. That lubricated the timing chain.
Not sure exactly the year but Harley removed the lip probably for a little more efficiency (power)
The lip only ran over then into the port thru to the oil pump in the cam galley side. The cam galley stayed full to the crank shaft bearing. That lubricated the timing chain.
Not sure exactly the year but Harley removed the lip probably for a little more efficiency (power)
Source?
I spent 30+ years as a dealer tech, and this is the first I've heard of any "lip".
1984 Softails were 80" Evo engines, 4 speed kick/electric start. No lip.
They went to 5 speed and electric start only in 1986. No lip.
The 88" Twin Cam Softail made it's debut in 2000, which was the start of the counter balancers, and cam chains with spring loaded tensioners. No lip.
In 2007, they got the 6 speed and 96 inches, with hydraulic cam chain tensioners. No lip.
Never saw a lip in any of them, but I've only had a few thousand of them apart...
Last edited by rigidthumper; Dec 25, 2022 at 06:56 AM.
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From: State of Confusion
it sure was .. OP said after 3 years of ownership the how the oil pan works kept coming up in his thoughts ... guessing most owners enjoy riding these more than thinking about them and he didn't have to pay me $100 an hour for therapy
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