Chủ Máy Quá Hài Lòng Với Cách Lộc Sửa, Và Giải Thích Chi Tiết Tại Sao Máy Hư ?

Summary

The video shows a boat mechanic named Lộc troubleshooting and repairing a 150-ton boat's Isuzu 6RB1 engine in Vietnam. The owner complains it uses too much fuel at low RPMs and smokes excessively. Lộc diagnoses issues with the fuel injection pump timing and throttle control, removes a throttle stop, and adjusts the injection timing. After a test run, the owner says the engine runs smoother, uses less fuel, and has reduced smoke. Lộc explains 95% of issues are fixed but the old engine can't be perfect. The owner is satisfied with the improved performance.

Takeaways

• 😊 The boat owner felt relieved and comfortable after the repairs, with the engine running smoother.
• 👨‍🔧 The mechanic Lộc diagnosed issues with the fuel injector timing being off.
• 🔧 Adjustments were made to the fuel pump, injector timing, throttle and more.
• ✅ After testing, the boat owner and his son confirmed around 95% improvement in performance.
• 🚤 Initially the boat struggled at low and high speeds, used too much fuel.
• 🔥 It would also spew excessive smoke, especially at low speeds.
• ⚙️ The engine is an old Isuzu 6RB1 model with 150 ton capacity.
• 😀 The owner felt the engine sound and response was much better after repairs.
• 🛠 Further tuning is still needed for optimal performance.
• 👍 The owner and his son were satisfied with the repairs overall.

Q & A

What was the initial issue with the boat engine?

The engine was eating more fuel when running at low RPM compared to high RPM, and was producing a lot of white smoke.

What repairs and adjustments did the mechanic make?

The mechanic adjusted the fuel pump timing, replaced a worn camshaft, adjusted the fuel injectors, and modified the throttle linkage.

How did the boat owner feel after the repairs?

The owner said he was very satisfied with the repairs. The engine ran smoother, used less fuel, and produced less smoke.

What engine model was being repaired?

The boat had an Isuzu 6RB1 diesel engine.

Why was the engine smoking at low RPM?

The fuel injection pump timing was off, causing incomplete combustion and smoke at low loads.

How much improvement did the owner estimate after repairs?

The owner estimated the repairs improved the engine by about 95% compared to before.

What was the problem with the throttle linkage?

The throttle stop screw had been disabled, causing the engine to over-rev.

How long had the owner been having issues with the engine?

The owner said the engine had been having problems for about 3 months since he bought the boat.

What tests did the mechanic perform?

The mechanic bench tested the fuel injection pump, performed a sea trial before and after repairs, and monitored the engine rpm and smoke.

Did the smoke and fuel consumption improve after repairs?

Yes, the owner and mechanic both reported much less smoke and improved fuel efficiency after repairs.