![]() Additionally, consider having someone in your area perform a blow-by test on the engine, which should only take an hour of labor and provide a good indication of cylinder condition. Look for oil seepage from the turbo boot and turbo X-over gasket, indicating that the turbo is pumping oil. Also, inspect the area between the cam followers for burnt paint, which could indicate a spun cam bushing. ![]() ![]() If the engine still smokes, it may require an overhead set or possibly a new camshaft. It's common for big cams to produce smoke when cold, but the engine should run cleanly once the coolant temperature reaches 140°F (60°C) or higher. Inspect the block for coolant stains down the side from the head gasket area. Some engines with thin deck blocks were prone to cracking in the liner counterbores and bolt holes, causing coolant leaks at the head gaskets. This type of damage can be difficult and costly to repair, as it often requires major machine work. Furthermore, these engines featured thin-wall cam bushings that were susceptible to spinning and damaging the block. If you suspect your engine is an original I-350 Big Cam (common in 1979 models), it's essential to address any issues promptly to prevent further damage.
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