Question about 2001 Harley Davidson FLSTC - FLSTCI Heritage Classic

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What would be causing excessive oil to drain from the breather into the air filter?

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Worn or cracked rings or an oil system that is not breathing properly.

Posted on Jun 07, 2010

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1 Answer

Oil keeps getting into the breather changed pc valve hoses and filters


check sump oil level--excessive oil level will cause this
have a compression test done on the engine (both wet and dry) to determine engine condition---excessive blow by from worn rings , bore or cracked piston will cause this --- clean/ replace air filter as if there is a low pressure area after the filter , it helps suck oil vapor from the sump

Aug 06, 2016 | Cars & Trucks

1 Answer

What should the compressin be on a briggs


What is the compression ratio for my engine?

Briggs & Stratton side valve (L-Head) engines use a compression ratio of 6 to 1.Our Overhead Valve (OHV) engines use a compression ratio of 8.5 to 1.

What would cause my engine to "puff" smoke while it runs?

White/blue smoking usually indicates the burning of oil. Causes to this condition include:
  • Overfilling the crankcase with oil
  • Incorrect oil grade
  • Operating engine at greater than a 15 degree angle
  • Inoperative crankcase breather
  • Crankcase air leak
  • Blown head gasket
  • Worn cylinder and/or rings
  • Turning/Tilting the engine on its side for any reason (storage, changing oil, etc). If the engine has to be tilted, ensure the spark plug is facing upwards to help prevent oil from escaping the crankcase.
Also, be aware that any small air leak can cause an excess of air entering the crankcase and will create a higher oil mist than the breather is capable of handling. The excess oil will then return through the breather tube and back to the air filter. Engine oil capacity is dependant on your specific engine model. To determine your engine's oil capacity, please visit our Oil Capacitypage. Oil level checking and changing intervals are available on ourMaintenance Schedule page, as well as a hyperlink (text highlighted in blue) leading to oil changing procedures.
The "Oil" section of your Operator's Manual also contains this information. Other possible causes include operating or tilting the unit at an angle, an obstruction in the breather tube (located behind the air filter), damage to the cylinder/piston rings, etc.

Jul 23, 2015 | Garden

1 Answer

I have a 2012 harley and im getting oil blowing into my air breather how do i find wear its leaking


The oil breather/separation system ends up in the induction pipe throat and the oil mist that does not get eliminated in the breather process is then sucked into the induction system and burnt n the engine. If your oil level is too high or if the breather system is defective this will cause excessive oil to end up in the air cleaner area. If the tubes etc that direct the oil into the induction system throat are missing or defective this would also add to or cause an excessive oil in the breather area problem.

May 09, 2014 | Harley Davidson FXD Dyna Super Glide...

1 Answer

Our mower is leaking oil from filter and we cant find the manual to figure out if the mixture is wrong - any advice?


Make sure the engine is not over-filled with oil. The crankcase breather is probably vented into the air cleaner canister causing oil to collect if the engine is overfilled. A similar condition can occur if the air filter is an oil saturated sponge and the filter wasn't allowed to drain excess oil. Don't worry about mixture problems if the engine is running correctly. Hope this helps!

Dec 09, 2010 | Garden

1 Answer

Oil goes towards the air cleaner in my water pressure. what is wrong?


It is normal for a small amount of oil (usually a smokey vapor) to pass from the crankcase breather into the air filter. However, if your having an excessive amount of oil then the the stem seals on the valves have hardened and it is allowing oil to pass along the valve stem through the valve guide through the breather and into the air filter. The remedy is to replace the stem seals under the valve springs inside the cylinder head.

One other thing that will do it is if someone overfilled the engine crankcase with oil. This will cause massive amounts of oil to be pumped into the air filter.

Thanks for using FixYa.

Kelly

May 03, 2010 | Karcher 2500 PSI Pressure Washer

1 Answer

I have CraftsmanLT1000 lawn tractor, Smokes heavily.


Many times a dirty air filter will cause this on this style of engine. When the filter is plugged, it creates a 'rich' fuel condition, and the engine smokes heavily, the excess carbon is drawn into the air filter, and plugs it even more.

check spark plugs, air filter, fuel filter, choke linkages (for full choke/no choke operation) and crankcase oil.

Crankcase oil can become fuel contaminated, thus overfilling the crankcase and filling the crankcase breather with raw oil/fuel, and this is drawn into the air filter, plugging it, and starting this senerio.

If there is fuel in the crankcase oil, drain completely, and refill with fresh oil. Then you need to look towards the carb for an inlet needle sticking, broken, worn.

Nov 15, 2009 | Craftsman Garden

1 Answer

I have 2003 ninjia 250 it was running good then slow down and died. like it running out of gas. will restart with th choke on. then run for a few miles the die again. also it is sucking oil into the...


Fuel starvation most likely caused by plugged fuel filter. Best way to check/fix is to drain gas tank then remove on/off/res petcock assembly. Filter is removed with assembly and can be cleaned with carb cleaner, blown out with compressed air, and re-used. Do not get solvent or carb cleaner on any rubber parts as this will harden them. Re-assemble and start with fresh gas. Oil in breather is normal if not excessive and can be sign of clogged air filter or worn rings. Fix fuel and air filters and re-check. Good luck, Techjoel

Jun 05, 2009 | 2008 kawasaki Ninja 250R

1 Answer

2006 Suzuki DRZ400S oil leak from bottom of air cleaner.


Often times there is a engine breather tube that has to do with emissions that runs from the engine to the air filter breather box. This tube can in some cases blow oil through it when the engine is run hard. Make sure you're not over filling the engine with oil when you change it because this will cause the oil to "blow off" the excess and the air box is where it often goes.
There is also another possibility, are you using too much oil in your air filter after you clean it? This too is a common cause for oil in the air box, if that's the case I would not worry about it.
The last case scenario is one you don't want, that would be washed out rings which cause blow by and that in turn causes the engine to blow oil out of the breather tube which I'm confident it venting into the air box.
Please let me know if these resolve your question and if not give me more details and I will be happy to assist you further.
Regards,
RSelvy

Dec 08, 2008 | 2006 Suzuki DR-Z 400 SM

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...

1 Answer

2001 ford escort zx2


Yes this can cause smoking, the oil is coming up into air cleaner (you may need to change the air filter) through the crankcase breather, the solution drain out the excess oil, do this as soon as possible or you may damage the engine, the O2 sensors, and the Catalytic Converter.

Sep 04, 2008 | 2001 Ford Escort ZX2

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