steventux
New Member
I've always ignored those hoses from the valve cover to the inlet manifold, something something engine breathing was all I needed to know.
I've lived with a significant air leak on my 1982 T1 208 with the agricultural M115.972 engine, mainly cos it's usually running on LPG but I've had enough of the stumbling and stalling.
So I've started going over the problem methodically with WD40 in an attempt to detect a leak, I've cleaned and refitted the carb with new gaskets, I've replaced the accelerator pump diaphragm.
I noticed that the 3 way pipe connecting the engine valve cover to the air filter to the inlet manifold (after the carb) has a constant vaccuum when idling. Apparently normal for a functioning PCV system. But I am suspicious that I might be missing a PCV valve. I mean should there be a constant air leak from the air filter housing directly to the manifold on this engine? It's something I'd like to understand better and rule out.
Any old timer experts care to advise?
I've lived with a significant air leak on my 1982 T1 208 with the agricultural M115.972 engine, mainly cos it's usually running on LPG but I've had enough of the stumbling and stalling.
So I've started going over the problem methodically with WD40 in an attempt to detect a leak, I've cleaned and refitted the carb with new gaskets, I've replaced the accelerator pump diaphragm.
I noticed that the 3 way pipe connecting the engine valve cover to the air filter to the inlet manifold (after the carb) has a constant vaccuum when idling. Apparently normal for a functioning PCV system. But I am suspicious that I might be missing a PCV valve. I mean should there be a constant air leak from the air filter housing directly to the manifold on this engine? It's something I'd like to understand better and rule out.
Any old timer experts care to advise?
