Isuzu 6HH1 Truck Engine Specificationsby David Weedmark
Isuzu 6HH1 engines are found in Isuzu F Series medium-duty commercial trucks. The F Series trucks can be recognized by their wide windows and a cab-over design that puts the driver above the engine. These trucks can be used as open-bed or closed-panel freighters, or as tippers. While larger F Series models produced in 2010 have three axles, those with the 6HH1 engines all have two.
6HH1 Engine Specs
The 6HH1 Isuzu diesel engine is a six-cylinder engine with an overhead cam. It uses direct ignition for its in-line cylinders and is water-cooled. The bore and stroke are 4.5 by 5.2 inches. It has an 18.5 to 1 compression ratio.
Isuzu produces two models of the 6HH1 engine, the 6HH1-N and the 6HH1-S. Both engines are the same size, with the same specs listed above, but the S model has a bit more power than the N. The 6HH1-S has a maximum output of 195 horsepower at 2,850 rpm, and a maximum torque of 369 foot-pounds at 1,700 rpm. The 6HH1-N has a maximum output of 173 horsepower at 2,800 rpm, and maximum torque of 340 foot-pounds at 1,700 rpm.
F Series Trucks
Isuzu F Series trucks with the 6HH1 engine have many specifications in common, including a two-wheel-drive, six-speed manual transmission with a hydraulic clutch. They use air-over hydraulic dual circuit brakes, with auxiliary exhaust brakes. The F Series trucks seat three, with a cab that tilts forward to access the engine. Safety features that come standard include side-impact beams on the driver's side and passenger doors, three-point side mirrors, and fog lamps beside the headlights. The cabs also feature a telescopic tilt steering column and power steering. The FSR model weighs 11 tons and can haul a payload of 8 tons, while the FTR weighs 14.2 tons and can carry a load up to 11 tons.
A published author and professional speaker, David Weedmark has advised businesses and governments on technology, media and marketing for more than 20 years. He has taught computer science at Algonquin College, has started three successful businesses, and has written hundreds of articles for newspapers and magazines throughout Canada and the United States.