Bassman619
Forum Newbie
Hello, I was hoping someone could tell me what this piece is for. It doesn’t seem to go anywhere. This is my first engine diagnosis so I have no clue
Unknown tube on H70 7HP
- Thread starter Bassman619
- Start date
Hello, I was hoping someone could tell me what this piece is for. It doesn’t seem to go anywhere. This is my first engine diagnosis so I have no clue
Bassman619
Forum Newbie
Ok, thank you very much
You actually want that hose connected up to something. A breather works by reliving the pressure inside the crankcase caused by the piston going up and down. When the piston comes down the pressure is expelled, BUT when the piston goes back up dirt and debris can (and WILL) be sucked into the engine. If you connect the hose to the intake manifold, then you need a one-way valve, commonly called a PCV valve. So the best (cheapest, easiest) connection is between the air filter and the carb. In this way only filtered air can enter the engine.
if i remember right there is a reed valve in the breather assembly.
There is also a filter
And judging by the hours on the engine in the photo, that filter should have been serviced about 3 or 4 times... which is also part of the original design intent.
Hammermechanicman
Lawn Addict
It is not really a filter. The crankcase gas being expelled has atomized oil mist in it. The stuff that looks like a filter is there to cause the oil mist to precipitate out and drain back into the crankcase. If the stuff that looks like a filter is not there oil mist will be expelled from the engine.
