Troubleshooting Rough Yanmar Mechanical Diesel w/GTC605
Mechanical Diesels are tough to diagnose, and very few tools help with it. The GTC605 helped us repair this small, old, unevenly-timed Yanmar 2GM. This 1984 Yanmar 2GM is a 40-year-old two cylinder indirect injection Diesel engine with jerk-type injectors. This type of small twin generally runs a bit rough because the timing is uneven (180-540 degrees), which tends to mask minor issues, but the GTC605 helped us uncover the problems.
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