Oil leaking from the center pushrod guide O ring?

[Nomad2day]

Went to ride last week and noticed some oil leaking from the front cylinder push rod guide center O ring on my 2007 Bulldog, EFI. Cleaned it off and went out and the oil started flowing out of it pretty bad. The oil was in need of changing anyway being in the winter months. One thread hole was stripped in the rocker base anyway so I ordered a new one and replaced it and the O rings in all the push rod guides. One the way home from where the work was done perhaps a 30 mile ride, oil was running out it again which was changed out with Amsoil 20-50. Seeing how the O rings, top gaskets and so on were replaced and the oil is being pumped up through the push rods and when I pop the top clip off, there is no oil on it, spring is good and everything seems seated fine, so the oil appears to be forced up unseating the O ring allowing it to run out. When I shut the bike down I could hear pressure being relieved from here. Seems like I am building crank case pressure blowing the oil up the tube unseating the O ring allowing oil to flow out. When I had John Sachs do the heads 1 1/2 years ago I closed off the front port but the rear cylinder is still plumbed to the throttle body/ air intake through the PCV valve. Pulled the PCV off and cannot blow air or suck air through it in either direction.
Could this be the culprit causing the symptom described above..
Does it matter what kind of PCV is installed..
Thanks in advance

 

[outdoorsman26]

yes you need to be able to releive the pressure!!! ged a new one!!!

 

[woodbutcher]

you ran for 1 1/2 years with as much work as you have had done without a vent. seems odd it hasn't shown itself before now???????

 

[alhall88]

Neil here is the part number for the check valve
S&S Part #50-8122.
And here is some reading in case your bored.
How does my new SSW+ breath?
In many respects, S&S SSW+ engines are similar to Evolution style engines, but when it comes to the way they handle crankcase venting, they are a whole 'nother animal! Most S&S Evolution style and SSW+ engines have two engine breathing systems that can be used separately, or together, commonly referred to as case breathing, and head breathing. For case breathing, SSW+ engines still uses the venerable breather gear to regulate the engine's internal airflow, just like the Evolution style engines before it. However, the head breathing arrangement is markedly different. SSW+ engines don't use hollow breather bolts to vent excess crankcase pressure to the outside. Instead, the head breathing arrangement of a SSW+ engine consists of two hoses - a small hose on the front head, and a larger hose, equipped with a one-way check valve on the rear head. (More on the check valve in a minute). The front hose is routed from the front head to the intake manifold. It applies manifold vacuum to the crankcase anytime the engine is running. The rear hose is routed from the rear head to the carburetor backing plate (or other suitable location). Its purpose is to relieve excess crankcase pressure at all rpm's. Unlike the hose on the front head, the hose on the rear head doesn't do anything until pressure builds in the crankcase. Just remember, the front hose sucks, the rear hose blows. The rear head breather hose on an SSW+ engine performs the same function as the breather bolts on an Evo engine; that is, venting excess crankcase pressure to the outside, without allowing outside air back in. Both engines use a check valve to perform this function. Evo engines use a pair of umbrella valves located inside the rocker boxes, while SSW+ engines use a one-way check valve, S&S Part #50-8122. It is located outside the engine, placed in the aforementioned rear head breather hose. The one way check valve must be used with the rear head breather hose, no exceptions. (By the way, SSW+ rocker boxes will have provision for Evo style venting, but it is not functional). The front breather hose supplies vacuum to the crankcase as added insurance against engine blow by. In most applications it is beneficial. However, there have been a few cases of this hose pulling oil into the intake, causing the engine to smoke. Using the front hose is optional. If the front hose is causing a problem, it can be removed and the fittings capped. If the front hose is removed, a check valve is still required in the rear head hose. The one-way check valve is critical to the engine's operation. It must be installed in the hose so that air can flow out of the motor, but not back in. The valve is light colored on one end, and black on the other. You can blow through it to determine which end faces the motor, or, if you'd rather not wrap your lips around the thing, just remember--"black out"-- the black end always faces out, or away from the engine.

 

[RADAMS445]

Great to know.

 

[RuDawg]

Neil here is the part number for the check valve
S&S Part #50-8122.
And here is some reading in case your bored.
How does my new SSW+ breath?
In many respects, S&S SSW+ engines are similar to Evolution style engines, but when it comes to the way they handle crankcase venting, they are a whole 'nother animal! Most S&S Evolution style and SSW+ engines have two engine breathing systems that can be used separately, or together, commonly referred to as case breathing, and head breathing. For case breathing, SSW+ engines still uses the venerable breather gear to regulate the engine's internal airflow, just like the Evolution style engines before it. However, the head breathing arrangement is markedly different. SSW+ engines don't use hollow breather bolts to vent excess crankcase pressure to the outside. Instead, the head breathing arrangement of a SSW+ engine consists of two hoses - a small hose on the front head, and a larger hose, equipped with a one-way check valve on the rear head. (More on the check valve in a minute). The front hose is routed from the front head to the intake manifold. It applies manifold vacuum to the crankcase anytime the engine is running. The rear hose is routed from the rear head to the carburetor backing plate (or other suitable location). Its purpose is to relieve excess crankcase pressure at all rpm's. Unlike the hose on the front head, the hose on the rear head doesn't do anything until pressure builds in the crankcase. Just remember, the front hose sucks, the rear hose blows. The rear head breather hose on an SSW+ engine performs the same function as the breather bolts on an Evo engine; that is, venting excess crankcase pressure to the outside, without allowing outside air back in. Both engines use a check valve to perform this function. Evo engines use a pair of umbrella valves located inside the rocker boxes, while SSW+ engines use a one-way check valve, S&S Part #50-8122. It is located outside the engine, placed in the aforementioned rear head breather hose. The one way check valve must be used with the rear head breather hose, no exceptions. (By the way, SSW+ rocker boxes will have provision for Evo style venting, but it is not functional). The front breather hose supplies vacuum to the crankcase as added insurance against engine blow by. In most applications it is beneficial. However, there have been a few cases of this hose pulling oil into the intake, causing the engine to smoke. Using the front hose is optional. If the front hose is causing a problem, it can be removed and the fittings capped. If the front hose is removed, a check valve is still required in the rear head hose. The one-way check valve is critical to the engine's operation. It must be installed in the hose so that air can flow out of the motor, but not back in. The valve is light colored on one end, and black on the other. You can blow through it to determine which end faces the motor, or, if you'd rather not wrap your lips around the thing, just remember--"black out"-- the black end always faces out, or away from the engine.

I knew the purposes of the 2 valves, but that one hell of an explanation that fills in a lot of the details. Thx!

 

[Nomad2day]

you ran for 1 1/2 years with as much work as you have had done without a vent. seems odd it hasn't shown itself before now???????

The rear has always been vented woodbutcher.....The PCV on the rear vent is clogged up now...

 

[Nomad2day]

Neil here is the part number for the check valve
S&S Part #50-8122.
And here is some reading in case your bored.
How does my new SSW+ breath?
In many respects, S&S SSW+ engines are similar to Evolution style engines, but when it comes to the way they handle crankcase venting, they are a whole 'nother animal! Most S&S Evolution style and SSW+ engines have two engine breathing systems that can be used separately, or together, commonly referred to as case breathing, and head breathing. For case breathing, SSW+ engines still uses the venerable breather gear to regulate the engine's internal airflow, just like the Evolution style engines before it. However, the head breathing arrangement is markedly different. SSW+ engines don't use hollow breather bolts to vent excess crankcase pressure to the outside. Instead, the head breathing arrangement of a SSW+ engine consists of two hoses - a small hose on the front head, and a larger hose, equipped with a one-way check valve on the rear head. (More on the check valve in a minute). The front hose is routed from the front head to the intake manifold. It applies manifold vacuum to the crankcase anytime the engine is running. The rear hose is routed from the rear head to the carburetor backing plate (or other suitable location). Its purpose is to relieve excess crankcase pressure at all rpm's. Unlike the hose on the front head, the hose on the rear head doesn't do anything until pressure builds in the crankcase. Just remember, the front hose sucks, the rear hose blows. The rear head breather hose on an SSW+ engine performs the same function as the breather bolts on an Evo engine; that is, venting excess crankcase pressure to the outside, without allowing outside air back in. Both engines use a check valve to perform this function. Evo engines use a pair of umbrella valves located inside the rocker boxes, while SSW+ engines use a one-way check valve, S&S Part #50-8122. It is located outside the engine, placed in the aforementioned rear head breather hose. The one way check valve must be used with the rear head breather hose, no exceptions. (By the way, SSW+ rocker boxes will have provision for Evo style venting, but it is not functional). The front breather hose supplies vacuum to the crankcase as added insurance against engine blow by. In most applications it is beneficial. However, there have been a few cases of this hose pulling oil into the intake, causing the engine to smoke. Using the front hose is optional. If the front hose is causing a problem, it can be removed and the fittings capped. If the front hose is removed, a check valve is still required in the rear head hose. The one-way check valve is critical to the engine's operation. It must be installed in the hose so that air can flow out of the motor, but not back in. The valve is light colored on one end, and black on the other. You can blow through it to determine which end faces the motor, or, if you'd rather not wrap your lips around the thing, just remember--"black out"-- the black end always faces out, or away from the engine.

Thanks Al....
That is what I needed to know. Makes sense what is happening now with it clogged up. Appreciate the part number as well. I will do something for the mean time until I can get one seeing how today is Sunday. I am on vacation for a week and want to get some riding in....
Neil

 

[woodbutcher]

something to add to regular maintenance schedule.

 

[Nomad2day]

something to add to regular maintenance schedule.

I totally agree with you on that......
I will add a extra one in my spare box of stuff. I keep a extra crank position sensor as well as some other items that will leave a EFI bike stranded just in case too.