When did the 12 valve Cummins engine come out?

While the 12-valve was produced from ’89-’98, most folks seek out the ’94-’98 version. These engines were equipped with the mechanical Bosch P7100 injection pump (also known as “P-pump” or inline pump), which features six plunger and barrel assemblies, a cam and delivery valves.

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 18-30 psi or more of lift pump fuel pressure.

Where can I buy P pump parts for my Cummins truck?

We are the P-Pump experts. Get the best parts for your 2nd gen Cummins P-Pump truck from the most knowledgeable shop around at the best prices and fast shipping. Buy in monthly payments with Affirm on orders over $50.

What should the timing be on a P pump Cummins?

However, a pump that’s set at 18 to 20 degrees of timing advancement will see impressive gains. The 18 to 20-degree mark is the unofficial sweet spot for timing on a P-pumped Cummins in that it allows for good all-around power, drivability and cold-start performance.

What kind of injection pump does a Cummins 12V use?

And many 12 valve owners will push these trucks to the limits, both in horsepower, as well as in miles on the odometer. “Driving it until the wheels have fallen off” could never be true for many 12 valve owners. One of the high strengths of these engines are their injection pumps, the P7100.

Can a P7100 pump fail on a Cummins truck?

One of the high strengths of these engines are their injection pumps, the P7100. Most owners of these trucks will never see a failure of this pump, but in certain instances, or when they start to see high mileage, these pumps can definitely fail, which is why we offer these stock replacement units from Industrial Injection.

Where to find TDC on Cummins injection pump?

Other popular methods of finding tdc are pushing on the timing pin right below the injection pump, or using a dial indicator set to the piston on the number 1 injector hole. We had the folks at Brown’s Diesel help us in setting timing the “correct way” which is to use a dial gauge on the delivery valve holder.