When did the Sportster oil pump come out?
Count the dots, add the year and you have the month and year of manufacture for that particular oil pump. In addition to the upgraded Drive Gear (26391-06), there is also an upgraded entire Oil Pump (first installed on 07-later Sportsters).
Are there oil lines on my 1990 Sportster?
Just documenting the location of the oil lines on the 1990 Sportster for replacement. The oil lines are in pretty bad shape (cracked and leaking at fittings) and all of them need to be replaced. Also going to replace the oil tank (the chrome one is UGLY).
How does the sportsterpedia dry sump system work?
It’s a dry-sump system with a gerotor oil pump that’s designed to keep the engine sump as dry as it can. When there’s no oil to suck up, it pumps a little air instead into the oil tank. That’s the way it’s supposed to work. See also, Oil Tank Pressure in the REF section of the Sportsterpedia.
How is oil pressure measured on a sportsterpedia?
See also Installing an Oil Pressure Gauge in the REF section of the Sportsterpedia. Engine oil pressure was measured (by the MoCo) with a pressure gauge at the oil pump. As checked with hot oil and a gauge at the plug hole on the engine case between the tappets.
Where is the oil line on a Sportster?
Also going to replace the oil tank (the chrome one is UGLY). Main Oil Feed Line (GREEN) 3/8″ ID oil line which runs from bottom outlet on the oil tank to the feed on the oil pump. Oil Return Line (BLUE) 3/8″ ID oil line which runs to the connection on the back of the oil tank.
Count the dots, add the year and you have the month and year of manufacture for that particular oil pump. In addition to the upgraded Drive Gear (26391-06), there is also an upgraded entire Oil Pump (first installed on 07-later Sportsters).
See also Installing an Oil Pressure Gauge in the REF section of the Sportsterpedia. Engine oil pressure was measured (by the MoCo) with a pressure gauge at the oil pump. As checked with hot oil and a gauge at the plug hole on the engine case between the tappets.
What to do if your oil pump is not working?
Check for a grounded oil pressure switch wire or a faulty switch if oil indicator light fails to go out with the engine running. If no oil pressure or return oil is not indicated at the oil tank, when engine is running, or an excess amount of oil is blown from the breather pipe, dis-assemble the oil pump for repair.