The seal has a PTFE-filled-bronze cap and nitrile-rubber energizer. It’s considered a low-friction, long-life seal. ... the total tribological system — the piston seal surface, ...

This will cause the seal on the piston rings to break, which can let the compressed air of the combustion chamber escape. ... If the crankcase pressure is too much, the cap will get blown off.

This will create a smooth, watertight seal. Next, work the piston guide (the 2-inch cap with the 1¾-inch hole you made) over the piston, and slide the piston guide onto the body. Don’t glue it!

Battling Blow-By. First and foremost, ensuring a diesel engine has optimal ring seal is the best way to ward off blow-by, especially for severe-duty powerplants that endure high boost pressures ...

Injection molding of high-modulus elastomers is industry-first, enables better fuel economy and reduced emissions SOUTHFIELD, Michigan, September 18, 2014 .Federal-Mogul Powertrain, a division of ...

Blow-by can harm an aging engine, but a certain amount is normal for most vehicles. Here is how to tell when there's too much blow-by in your diesel engine.