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The service that nearly killed a Mack…

by webbiesmechanical | Aug 27, 2025 | From the Workshop Floor

Fresh from a service, this Mack shut down on the highway with no oil pressure. The sump plug had fallen out — completely stripped. We fixed it properly. Here’s what happened. The owner of this bonneted Mack thought everything was sorted. The truck had just come back...

How to Check for Play in Turntable Bushes 🔧🚛

by webbiesmechanical | Aug 25, 2025 | From the Workshop Floor

Worn turntable bushes can cause poor trailer tracking, clunks, and unnecessary wear on other components. The good news? A quick check can tell you if yours need attention. Here’s how to do it:1️⃣ Secure the truck & trailer – Park on level ground, handbrake on, and...

White Smoke, Diesel in the Sump… and a Dropped Valve

by webbiesmechanical | Aug 20, 2025 | From the Workshop Floor

It started like any other day on site — a water cart truck heading out along the gravel road, doing what it’s built to do. But before long, the driver noticed something off. First, white smoke pouring out of the exhaust.Then, a strange ticking sound from the engine...

What’s the Job of an Air Dryer? 💨🔧

by webbiesmechanical | Aug 19, 2025 | From the Workshop Floor

The air dryer plays a crucial role in your truck’s air brake system. Its main job?👉 Remove moisture, oil, and contaminants from the compressed air before it enters your brake system. Why it matters:✅ Prevents rust and corrosion in air lines and valves✅ Stops freezing...

“Smoke, Screams & Seized Steel” – When a Turbo Turns Against You

by webbiesmechanical | Aug 13, 2025 | From the Workshop Floor

It was supposed to be just another run up the highway — nothing out of the ordinary. The driver was cruising along in his prime mover when he noticed something strange out the mirrors. Smoke.A lot of it.Thick, grey, and pouring out of the stacks like a chimney on...
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Recent Posts

  • This Month in the Workshop: Why “Find Out Why” Runs Through Everything We Do
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  1. webbiesmechanical on White Smoke, Diesel in the Sump… and a Dropped Valve
  2. James Weston on White Smoke, Diesel in the Sump… and a Dropped Valve

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