Question about Harley Davidson XL 1200 C Sportster Custom Motorcycles

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Blowing oil out air filter - XL 1200 C Sportster Custom Harley Davidson Motorcycles

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You need to get a leak down check, your valves will probably need to be adjusted.

Posted on Oct 06, 2009

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1 Answer

Blowing oil


This normally happens if the oil is overfilled. Try checking your oil level to see if its above the recommended amount. This can also be caused by oil entering the carburetor, be sure to check your carburetor as well.

Feb 15, 2013 | Air Tools & Compressors

1 Answer

Harley Evo blowing oil through air filter. Isn't


Well, there is an "umbrella valve" in each of the center sections of the rocker box. These can and do get brittle from the repeated heating and cooling. They do a good job of keeping the bulk of oil out of the air filter but they can't get it all. As will all previous Harleys, they blow a bit of oil and those that relieve their crankcase pressure into the air filter do still make a mess that must be cleaned out occasionally. But, it shouldn't be excessive. Excessive blowby on the rings can exaggerate the problem.

To replace the "umbrella valves", simply take the bolts out of the rocker box cover and replace the gaskets and the valve. You will have to pull the fuel tanks to do this job.

Good Luck
Steve

May 21, 2011 | 2000 Harley Davidson FLSTC Heritage...

1 Answer

Cylinder 3 misses and has carbon biuld up on plug also looks to have oil on the plug, smell like oil is burning , smokes alot out of tail pipe,oil consumtion is a qt, per 300 miles and it looks like oil is...


Geez!

U got a bad piston rings! U have to pull down the PiSTON to replace the PiSTON RiNGS, oil is getting in ur combustion!

Or

Check also the valve guide oil seal, hope that is the faulty one! 'Cause replacing PiSTON RiNGS will cost a LOT!


Check on that first, Oil in ur air filter means a BLOW BACK gas from ur combustion is pushing the oil into the air filter!

BLOW BACK is a residual combustion air that should have been burned or gone thru the exhaust, but w/ poor seal of ur piston ring, it goes into ur CRANK CASE and into ur EGR system w/ excess oil!

Hope that explains everything!

Dec 02, 2010 | 1987 Toyota MR2

1 Answer

Gardner denver air compressor is blowing oil, need help


Is this a rotary screw compressor? If so, is it blowing oil out of the air filter or out of the discharge air lines? If it's blowing oil out of the air filter you have a oil stop valve or minimum pressure check valve bad. If oil is coming out of the discharge air you need to change the seperator.

Nov 15, 2010 | Air Tools & Compressors

1 Answer

My troy-bilt blower/vac is blowing oil out of the carb. what are some things that may cause this? Oil level? How do I know I have proper amount of oil? If I leave the foam filter and the carb cover on, the...


Your oil breather (on the side of the engine opposite the carb) may be malfunctioning/defective allowing the carb to **** oil from it. There is a breather tube that crosses over the top of the cylinder connecting the crankcase( oil) breather to the air filter housing. Check the oil level and the condition of the air filter and esp. the oil breather. It serves the same function as a PCV on a car engine.

Aug 09, 2010 | Troy Garden

1 Answer

Oil is coming out of my air filter on my 1986 cabriolet vw


How many miles are on it? Check and clean the crank case ventilation (from the top of the valve cover to the air filter box) if there is a pcv valve check it and you may have to clean it. If not you have blow by some of the compress is going around the pistons into the motor and blow the oil out.

Mar 06, 2009 | 1986 Volkswagen Cabriolet

1 Answer

1999 Nissan Sentra oil in air filter


First off, nothing "blows" into the air filter. It would be getting sucked in from somewhere in your engine compartment. My guess would be leaking valve cover. Check around and feel for wet oil. That will also be a leak. Have you been going through more oil than usual? Check that also. Hope that helped.

Jan 04, 2009 | 1999 Nissan Sentra

1 Answer

Oil soaking my Air filter on 2003 Jeep Wrangler


Likely you already know by now, that you have a broken ring or bad piston. I can't believe no one answered you!!!

Dec 07, 2008 | 2003 Jeep Wrangler

1 Answer

Oil blow out the breather


An overfull oil tank will do it. Even if not overfull just about all harley's will blow oil out the air filter. Unless there is a bunch of oil coming out, it's not a problem What I've found is that the air filter eventually gets saturated and then starts to leak through. The level in the oil tank doesn't seem to matter. If you change the air filter the problem goes away, until the new one gets saturated and then it starts all over again. My plan is to get a K&N air filter, which you can clean yourself and save having to buy a new air filter every 4,000 miles or so.

Nov 20, 2008 | 2006 Harley Davidson XL 1200 R Sporster...

7 Answers

Oil blow out the breather


This is a common problem on all sportsters, they have an oil blow by that dumps it into the air filter. I have found that if I run about a half quart low the problem goes away.

Nov 10, 2008 | 2000 Harley Davidson XL 1200 C Sportster...

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