Question about Harley Davidson FLHTC - FLHTCI Electra Glide classic Motorcycles

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Engine breather gushing oil - FLHTC - FLHTCI Electra Glide classic Harley Davidson Motorcycles

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Hi Anonymous, either your oil system is over filled or the return side of oil pump has failed or is blocked. Good luck

Posted on Apr 29, 2015


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Posted on Jan 02, 2017

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SOURCE: fuel gushing

I'm gonna go with theory #2 sort of. My guess is that one or more of the float valves is leaking causing the gas to overflow into the crankcase. This happens often with bikes that are allowed to sit for long periods with gas in the carbs and tank. A thorough fuel system cleaning is what it needs. I'd say go ahead and buy four carb rebuild kits for it - may as well since you'll have to disassemble the carbs to clean the gum and varnish out, which is really the best thing for it at this point. I wouldn't try to run it again 'til you get the carbs to quit leaking, the fuel drained out of the crankcase and put fresh oil in. ,,,

Posted on Nov 10, 2008

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SOURCE: oil breather problem

keep your oil breather unblocked all the time's coz the pressure of it can destroy your gasket and oil seal.

Posted on Apr 15, 2009

  • 420 Answers

SOURCE: there's oil blowing out my enghine oil breather

This is common the solution is to run the oil half way between full and low.

Posted on Jun 21, 2009

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Done oil change & filter, now engine is presurizing & comming out air filter can you help

An incorrect oil filter might cause increased pressurization but not likely oil out of air cleaner BUT, need to know what type of bike/engine you have etc. In some cases oil with too great a viscosity might not separate properly in a breather system and therefore overwhelm the engine breather/oil separation system and come out the breather BUT again would depend on the engine and breather system so no generic answer will do and one needs to know what bike/engine system you have to be anymore helpful or definitive. Crankcase must be able to breathe properly or it will over pressurize and force air and oil out somewhere.

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Hi, Wolfgang4999 for this scenario you will need your service/owners manual if you can't find the first and best tool you ever bought for your Yamaha, despair not, for a mere $0 you can download another one. For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
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1 Answer

While stored the oil leaks from the oil tank to the pump ?

Hi Anonymous, this is not uncommon especially with Ironhead Sportsters. Oil seeps pass the check ball/valve in the oil pump and loads up the bottom end. If you have a drain plug in the bottom of your crankcases just remove it and drain the 3 quarts of oil that took up winter residence and move them back into the oil tank where they belong. If not be prepared to have it gush out the engine breather when you fire it up. Best thing to do is drain the oil before you put the bike away for the winter also drain the gas and run the carb out of fuel. Good luck

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Oil and fuel blowing out through top of motor in yamaha golf cart 4 stroke engine

Engine got to much oil in it? Worn engine allowing fuel down into engine diluting the oil and raising the oil level? Blocked engine breather, pressurising the crankcase. Oil change and clean the breather. Worth a try

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Breather tube throwing oil into carb

Oil coming via the engine breather can mean a worn engine, it could be as simple as an over filled sump, or the breather valve itself is not working, the breather valve allows the crankcase pressure out of the engine.

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Oil system manual for a 1987 softail (evolution). oil leaking from breather of engine system.

On your '87 Softail, the engine breather vent is behind and below the oil pump. The air from the breather is routed into the engine air filter by a metal pipe and rubber tubing that runs from the breather vent to the air filter. It is common to get a bit of oil in the air filter because of this system. The system was designed to meet EPA regulations of the time. Since then, the breather system has been modified to allow the engine to breathe at the top of the heads instead of down low on the engine. This resolves some of the problem with oil getting into the air filter but it still does not eliminate it. The only way to eliminate the oil from getting into the air filter is to reroute the air from the crankcase breather vent to somewhere else. Most people just let it exhaust underneath the bike by putting a small breather filter on the end of a short piece of rubber hose connected to the breather vent.

Good Luck

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1 Answer

Oil is getting on air breather 2004 ram hemi

oil getting on a breather can indicate excessive crankcase pressure. Check all the `crankcase breathers and the valve cover breathers.

if the crankcase has been overfilled with engine oil. The crankshaft has to "beat" it's way through the oil and thus acts as a pump and sends oil all over the internal surfaces of the crankcase.

If the engine cylinders have developed 'blow-by" they will also contribute to an increase in crankcase pressure which will be evident by oil in the breathers. The fumes / pressure in the crankcase are designed to be removed by the engine breather system, and drawn through the engine etc.

I hope this info helps.

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1 Answer

There's oil blowing out my enghine oil breather

This is common the solution is to run the oil half way between full and low.

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1 Answer

Oil breather problem

keep your oil breather unblocked all the time's coz the pressure of it can destroy your gasket and oil seal.

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