ATROPELOU VÁLVULA E AGORA?! SERÁ O FIM DO MOTOR DO SUBARU? TESTED 3 EP.05

Summary

The transcript describes working on a rare Subaru STI race car. After racing it aggressively, the engine started running poorly. Upon inspection, it was found that the timing belt had jumped, causing piston damage. The heads were removed and valves were bent from contact with pistons. After repairs and upgrades for durability, the engine was rebuilt but still had issues. More repairs are needed before the next track test against newer cars.

Takeaways

• 💻 The script emphasizes the transformative experience of owning and modifying a Subaru, suggesting it can significantly impact one's life.
• 🔨 The narrator dives into a technical exploration of the Subaru's mechanical issues, highlighting a commitment to investigation over mere upgrades.
• 🛩 The video takes an educational turn, focusing on the mechanical nerdery involved in diagnosing and fixing car problems, particularly with the Subaru's engine.
• 🔧 It details the process of disassembling the car's front end and investigating the engine's timing and compression issues, indicative of a hands-on, problem-solving approach.
• 📰 A specific issue with the Subaru's EJ20 engine is identified, concerning a common problem with head gasket failure leading to compression loss.
• 🔬 The narrative includes a suspenseful moment where the car's timing belt alignment is checked, revealing a significant misalignment that hints at underlying mechanical faults.
• 📚 Through a detailed examination, the script underscores the importance of precision in mechanical repairs, especially when dealing with high-performance engines.
• 🔮 A significant portion of the script is dedicated to troubleshooting the Subaru's engine, including the use of specialized tools to test cylinder compression and valve integrity.
• 🚗 The story arc includes an unexpected turn where, despite meticulous repairs, the car faces further challenges, adding a layer of drama and persistence to the narrative.
• 👨‍🔧 The script concludes on a hopeful note, with plans for future enhancements and tests, showcasing a never-give-up attitude toward automotive restoration and improvement.

Q & A

What kind of car is Ricardo working on?

Ricardo is working on a Subaru WRX STI.

What was the issue with the car's engine?

The engine's timing belt jumped timing, causing the pistons to hit the valves and bend them.

How did Ricardo diagnose the engine issue?

Ricardo used a compression tester to identify that the cylinders were losing compression due to the bent valves.

What repairs were made to the engine?

The cylinder heads were re-machined, damaged valves were replaced, and new head gaskets were installed.

What upgrades were made during the engine rebuild?

Upgraded ARP head studs and multi-layer steel head gaskets were installed for added durability.

How did Ricardo verify the repairs were successful?

He started the engine and monitored the compression readings to confirm all cylinders had good compression.

What issue prevented the car from being fully tested?

A clutch fluid leak prevented the clutch from fully disengaging.

How does Ricardo plan to further test the car?

He plans to take it to the drag strip to run some friendly comparison races against similar cars.

What enhancements does Ricardo have planned for the car?

He hints at wanting to add more performance upgrades in future videos.

What is Ricardo's profession?

He appears to be a professional mechanic, experienced with engine building and tuning.