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Category Archives: Diesel Engine Troubleshooting Articles

P7100 Fuel Pump Modifications for the 8 Valve 4BT

4BT Engine History and Background 4BT (3.9 L) 140 HP Engine The Cummins 4BT has mostly been utilized in applications such as box trucks, small industrial vehicles and agricultural equipment. The 4BT is pretty much just a downsized version of the famous 5.9L 12V Cummins as these engines share almost all of their parts such…
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ISC 8.3 Engine Specs and History

Cummins ISC 8.3 L Engine, Originally Put into production: 1998. Image Courtsey of Cummins® Inc. If you cast your mind back to 1998 you may think of the Monica Lewinsky/Bill Clinton scandal, Good Will Hunting winning the best picture Oscar or the Denver Broncos winning the Super Bowl. It is also the year that Cummins…
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CAT 3306 Engine Turbo and Aftercooler Problems

CAT 3306 Surplus Engine Showcasing Top Mounted Turbo and Muffler Continuing our series on CAT 3306 Air Inlet and Exhaust Problems, Part 2 of the series explores the Aftercooler and Turbocharger for air flow restriction issues. The CAT 3306 is built on simplistic old school mechanical engineering. There really aren't too many glaring issues with…
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