Migration of refrigerant to the compressor’s crankcase during an off cycle is a serious problem. Significant compressor damage can occur if the problem is not remedied. If refrigerant migration does ...

Many air conditioning and refrigeration systems have their condensing units located outdoors for two main reasons. First, this takes advantage of the cooler outdoor ambient temperatures to reject the ...

Fuel dilution of the engine oil is a problem that faces many modern combustion engines. Also known as “crankcase dilution” it is a process where fuel is leaked into engine oil when it travels towards ...

Ever-evolving emissions rules have resulted in several significant shifts in car design, although this is far from a new phenomenon. Regulators have been looking for ways to make cars more ...

Crankcase blow-by is hot gases that sneak past the piston rings. As of 2007, the U.S. Environmental Protection Agency limits nonmethane hydrocarbons to 0.14 grams per bhp-hr. Blow-by gases are rich in ...

Every engine has some sort of crankcase breathing system. The internal combustion process creates pressure, some of which makes its way past the piston rings-along with fuel vapors-and into the rest ...

Home mechanics have been pouring vegetable oil into engines for years, sometimes in the fuel tank, sometimes straight into ...

If for whatever reason you need a new crankcase for your air-cooled Porsche 911, you need to go used. That can make full engine rebuilds tricky, but if you're working on a 911 engine made from 1984 to ...

As the industry shifts towards alternative fuels in response to environmental regulations and sustainability goals, the safety risks associated with these fuels cannot be overlooked, says the ...