Why does the oil blow out on my Harley Davidson?

Why does the oil blow out on my Harley Davidson?

For about the last 3 months or so, every time I start the engine the oil dipstick plug gets blown off, and oil spits out the filler neck. This happens any time I start the engine, hot or cold. The bike runs qreat after starting and no performance loss in noticable. A mechanic told me this is caused by sumping.

What can cause 1989 Harley pukes oil out crankcase vent?

Re: 1989 harley pukes oil out crankcase vent when started… Blow by compression. Severe engine problems. Pull the heads look at cylinder walls You can’t post conmments that contain an email address. I have 1983 Harley Sportster 1000 that won’t fire when I first turn the key, but after a few minutes it fires right up what can cause this?

Is the oil bag over filling on a Harley Davidson?

Welcome to the forum broncosfan, that was a very common problem around your year bike, it’s no biggie, what is happening is you oil bag is over filling after you start it.

Where does the check ball go in an oil pump?

Red arrow number 2 indicates where the check ball is installed into the pump body. It has a spring that presses the ball onto the seat, just above arrow number 1. When the oil is pressurized it lifts the ball off the seat and flows to the engine. This is looking down into the oil pump body where the check ball goes.

How do you install an oil pump on a Harley?

Install the oil pump. Connect feeder and return lines. Fill the oil tank to correct level. Remove check valve cover screw with a flat head screwdriver. Remove the check valve O-ring and spring by hand. Remove the check valve ball with a mechanic’s magnet from inside the oil pump body.

For about the last 3 months or so, every time I start the engine the oil dipstick plug gets blown off, and oil spits out the filler neck. This happens any time I start the engine, hot or cold. The bike runs qreat after starting and no performance loss in noticable. A mechanic told me this is caused by sumping.

How do you change the oil in a Harley Davidson?

Replace the check valve ball, spring, O-ring and screw. Put the motorcycle in “Neutral” and start the engine. Confirm oil circulation with an oil pressure gauge and by removing the filler cap from the oil tank and watching oil return to the tank. Don Davis has been a professional writer since 1977.

Re: 1989 harley pukes oil out crankcase vent when started… Blow by compression. Severe engine problems. Pull the heads look at cylinder walls You can’t post conmments that contain an email address. I have 1983 Harley Sportster 1000 that won’t fire when I first turn the key, but after a few minutes it fires right up what can cause this?