Why do intake valves get carbon buildup? 🤔 On older engines, fuel sprayed over the valves and kept them clean. But on modern direct-injection BMWs, fuel goes straight into the cylinder. That means: ✅ No fuel washing the valves ✅ Oil vapors from the PCV system stick to them ✅ Heat bakes it all into hard carbon The result? Sluggish throttle, misfires, and lost power. That’s why walnut blasting is the go-to fix, it restores smooth airflow and brings your engine back to life 💨 | RPM Tuning
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Why do intake valves get carbon buildup? 🤔 On older engines, fuel sprayed over the valves and kept them clean. But on modern direct-injection BMWs, fuel goes straight into the cylinder. That means: ✅ No fuel washing the valves ✅ Oil vapors from the PCV system stick to them ✅ Heat bakes it all into hard carbon The result? Sluggish throttle, misfires, and lost power. That’s why walnut blasting is the go-to fix, it restores smooth airflow and brings your engine back to life 💨 | RPM Tuning
150.3K views5 months ago
FacebookRPM Tuning
The carbon buildup on valves because of direct injection is always impressive. This Colorado only has 70k on it! #mechanic Direct injection (DI) engines, where fuel is injected directly into the combustion chamber rather than into an intake manifold, can lead to valve contamination for several reasons:1. **Lack of Fuel Washing**: - **Port Fuel Injection (PFI)** engines benefit from the fuel washing over the intake valves as it's sprayed. This fuel helps to dissolve and wash away deposits, carbon
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The carbon buildup on valves because of direct injection is always impressive. This Colorado only has 70k on it! #mechanic Direct injection (DI) engines, where fuel is injected directly into the combustion chamber rather than into an intake manifold, can lead to valve contamination for several reasons:1. **Lack of Fuel Washing**: - **Port Fuel Injection (PFI)** engines benefit from the fuel washing over the intake valves as it's sprayed. This fuel helps to dissolve and wash away deposits, carbon
3.1K viewsNov 13, 2024
FacebookAC Auto
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