Mastering Crankcase Blowby: How FTC Decarbonizer and Flushing Oil Concentrate Transform Your Diesel Engine
- Cost Effective NZ Team
- Jun 4
- 2 min read
Updated: Jun 12
Crankcase blowby is a common but often unnoticed issue in diesel engines that can cause significant damage. As engines age, blowby becomes more prevalent, leading to power loss and efficiency reduction.
Understanding Crankcase Blowby
Blowby occurs when combustion gases escape past piston rings into the crankcase, worsened by engine wear, poor maintenance and low quality engine oil, or oil that is well past the time to change it. It can also occur when carbon buildup causes cylinder glaze and sticking piston rings.
Blowby decreases engine performance and causes harmful sludge buildup, leading to costly repairs. It can manifest with several symptom, including increased oil consumption, rough idling, misfiring, overheating, loss of power and white smoke. Additionally, engine noises, such as loud or sputtering sounds and exhaust fumes can also be indicators.
Early detection can save time, money and extend engine life.
How Crankcase Blowby Affects Your Diesel Engine
Blowby impacts engines in several ways:
Reduced Engine Efficiency: Increases fuel consumption by 10%-15% due to workload.
Increased Engine Wear: Causes up to 30% more wear on components.
Oil Contamination: Dilutes oil, reducing lubrication effectiveness.
Increased Emissions: Leads to higher emissions, risking regulatory non-compliance.
Overheating: Contaminants impair cooling, risking severe damage.
In extreme cases, blowby can lead to a "runaway" engine where the mixture of unburned fuel and oil in the crankcase reaches the combustion chamber and causes the engine to run uncontrollably.
Recognizing the Symptoms of Crankcase Blowby
Early signs include:
Excessive Oil Consumption: Frequent oil top-ups indicate blowby.
Dirty Oil: Oil turns dark and sludgy quickly.
Oil Leaks: Increased pressure causes seal failures.
Blue Smoke From Exhaust: Indicates oil burning.
White Smoke From Valve Cover: This may be oily
Lower Compression: Below 70% suggests escaping gases.
Tackling Crankcase Blowby with FTC Decarbonizer and Flushing Oil Concentrate
FTC Decarbonizer cleans carbon deposits, improving fuel efficiency and power. Flushing Oil Concentrate removes dirty particles and buildups from the old oil, allowing the new oil to work without getting contaminated. Using these products ensures peak performance and longevity.
Final Thoughts
Crankcase blowby threatens diesel engine health. Understanding its effects and symptoms allows timely action. With the right products and maintenance, blowby is manageable. Stay vigilant and invest in quality products to keep your engine in top shape.
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