Is cat better than Cummins?

Is cat better than Cummins?

In terms of fuel efficiency, Cummins’ engines are 6% better than Caterpillar . That’s not the only area where CMI’s coming out on top. It’s taking share from CAT in other heavy-duty engines as well. Cummins is taking share from all its competitors, actually, as it’s now the largest supplier to Paccar .

Which is the best engine for a Volvo truck?

So, if you want a Paccar product but like a Detroit engine, the days of getting any engine in almost any truck are long over. Cummins is the only motor available in almost all chassis styles, except Volvo. It was an option years ago but this is no longer the case.

When was the last Cummins Variable Timing engine made?

The Cummins 855 Big Cam was the last real mechanical variable timing engine mass produced by Cummins in the 1976. The Big Cam replaced the small cam 855 and was the first engine by Cummins to meet the Clean Air Act and noise regulations of that time. There were four generations of the Cummins Big Cam 855 engines,…

When was the last Cummins Big Cam engine made?

There were four generations of the Cummins Big Cam 855 engines, last produced in 1985 and was replaced by the N14. We love the 855 Big Cam because of the raw horsepower it puts out as well as its reliability.

Why are Cummins 855 big cam engines so popular?

Overall horsepower was the main reason this engine was a big seller over the small cam models. The Cummins 855 Big Cam had one of the largest camshaft diameters on the market at the time and features top-stop injectors.

When to know if your Cummins engine has a problem?

If you have fuel at the injector, good fuel supply pressure, and you are fairly certain you have no more air in the system, you may have a weak injector pump or incorrect injector pump timing. You may especially suspect this kind of problem if you have never heard the engine run before, or you replaced the injector pump.

What should the lift pump pressure be on a Cummins Engine?

These engines should have between 7-15 psi of lift pump fuel pressure. We have banjo bolts available that allow you to connect a gauge to your fuel system. If you have fuel at the injector, good fuel supply pressure, and you are fairly certain you have no more air in the system, you may have a weak injector pump or incorrect injector pump timing.

What should fuel pressure be in a 12 valve Cummins Engine?

If your supply fuel line is loose, it is possible to draw air into the fuel system at that point, so if you suspect you are not getting rid of the air in the system check your supply line connections. These engines should have between 7-15 psi of lift pump fuel pressure.