What causes blowback on a diesel engine?
What causes blowback on a diesel engine?
Blow-back is caused by the escape of exhaust gases from inside your engine’s combustion chamber to the crankcase or valve area. When the air-fuel mixture inside the cylinders fires, it creates tremendous pressure that drives the pistons downward.
Why is Blowby bad?
Blow-by that makes it into the cylinder can lower the effective octane rating of the air-fuel mixture. If the octane rating of the air-fuel mixture drops enough, it can cause knock (also known as pre-ignition), where the fuel mixture ignites before the spark plug fires, causing very high cylinder pressures.
What are the problems with a 6.5L diesel?
Common problems with the 6.5 diesel include crankshaft, glow plug, and PMD failure. Overheating is also an issue with the 6.5L, and it can lead to cylinder head cracking.
Why does my diesel engine blow by all the time?
As the engine heats up, the piston expands, and blow by disappears under normal operation. This is considered typical cold engine blow by, and it is unavoidable. As the diesel engine gets older, the cylinder walls wear out by constant piston and piston ring scraping. Over time, the cylinder bore becomes bigger by this constant scraping.
Can a 6.5L Detroit Diesel engine overheat?
Overheating is also an issue with the 6.5L, and it can lead to cylinder head cracking. In essence, the 6.5L Detroit diesel was a leap above the 6.2L, but it’s generally accepted that the engine was outpaced by Ford’s Power Stroke and Dodge’s Cummins turbodiesel offerings.
Is the 6.5L a naturally aspirated or turbocharged engine?
Unlike the earlier engine, the 6.5L was available in both factory turbocharged and naturally aspirated versions, with the turbocharged version offering a healthy increase in performance.
Common problems with the 6.5 diesel include crankshaft, glow plug, and PMD failure. Overheating is also an issue with the 6.5L, and it can lead to cylinder head cracking.
What does blow by mean in a diesel engine?
In a diesel engine, blow by is defined as the compressed fuel/air mixture in the combustion chamber leaking past the piston and entering the crankcase.
Overheating is also an issue with the 6.5L, and it can lead to cylinder head cracking. In essence, the 6.5L Detroit diesel was a leap above the 6.2L, but it’s generally accepted that the engine was outpaced by Ford’s Power Stroke and Dodge’s Cummins turbodiesel offerings.
What causes a headache on a GM 6.5L diesel?
Another common headache on the 6.5L is caused by the failure of the oil pressure switch. Not a huge problem on most other engines, but in the case of the 6.5L the OPS serves two purposes.
