Autodata 348 Top Official

| Component | Torque (Nm) | Torque (ft-lbs) | | :--- | :--- | :--- | | Crankshaft center bolt | 150 Nm + 60 degrees (angle tighten) | 110 ft-lbs + angle | | Camshaft sprocket bolts | 65 Nm | 48 ft-lbs | | Timing belt tensioner bolt | 25 Nm | 18 ft-lbs | | Timing cover bolts | 10 Nm | 7 ft-lbs |

Disclaimer: This article is for informational purposes. Always refer to the latest official Autodata technical publication for your exact vehicle, as engine designs and specifications evolve. The author is not responsible for any damage incurred during repair procedures. autodata 348 top

Imagine you have removed the timing belt. You then rotate the camshafts to align their marks. Without the crankshaft locked at “top,” you have no reference. The crank may drift due to internal spring pressure from the piston rings. When you install the new belt and release the tensioner, you might be one or two teeth out of phase. | Component | Torque (Nm) | Torque (ft-lbs)

In the world of professional automotive diagnostics and repair, few things inspire confidence like a trusted technical database. For decades, Autodata has been the gold standard for mechanics seeking accurate technical specifications, wiring diagrams, and step-by-step repair procedures. Among the thousands of routine maintenance procedures housed within the software, one specific reference number generates consistent search traffic and technical curiosity: Autodata 348 . Imagine you have removed the timing belt

The engine will start—poorly. It will have low power, rough idle, and potentially a check engine light for cam/crank correlation (P0016, P0017). In an interference engine, being just one tooth off can cause valve contact at high RPM.

is historically associated with timing belt replacement procedures for specific multi-valve engines, most notably found in European and Asian passenger vehicles. While the exact vehicle application can vary slightly by software version and regional update, the number “348” is most famously linked to 1.4L, 1.6L, and 1.8L 16-valve petrol engines produced by major manufacturers like Vauxhall/Opel, Suzuki, and certain GM platforms during the late 1990s and early 2000s.

Whether you are a seasoned workshop owner, a mobile mechanic, or a passionate DIY enthusiast, understanding what the “Autodata 348 top” refers to—and how to apply it correctly—can mean the difference between a perfect repair and a catastrophic engine failure.