How much boost does a DD15 make?
A gear-driven high-pressure fuel pump produces pressures in the common rail of 13,000 psi, while the final pressure boost is achieved hydraulically within the injector itself. The system is capable of up to five injection events per cycle, optimizing combustion efficiency while reducing noise dramatically.
How do you do a compression test on a DD15?
If results indicate a weak cylinder, perform the manual compression test.
- Start and run the engine until normal operating temperature is reached.
- Disconnect the batteries.
- Remove rocker cover.
- Remove both injector harnesses.
- Remove high pressure fuel line from the suspect cylinder.
- Remove the injector.
Is the Detroit DD15 a good engine?
When it comes to diesel engines, the Detroit DD15 is the one to beat. It comes with loads of impressive features that make it a high-performance and durable engine.
Which is better DD13 vs DD15?
They find the DD13 tends to be the best fit in regional applications, while the DD15 leads the long haul segments where fuel economy and performance are most important. Each 100-rpm reduction saves 1% of the fuel bill, an estimated $730 per year.
What is relative compression test?
It’s called a Relative Compression Test and it’ll show the compression in the cylinders, not actual values but relative to each other so you can see which cylinder you might need to check out that may have the low compression.
Which engine is better DD13 or DD15?
What oil does a DD15 take?
“As of January 2019, Chevron Delo will supply two thirds of the North American heavy-duty factory fill engine oil market.” Beginning January 1, Delo 400 ZFA SAE 10W-30 will be factory-filled in all Detroit DD13, DD15, and DD16 engines.
How many miles is too many for a semi truck?
According to Commerce Express, a semi will last 750,000 to 1,000,000 miles and the average truck driver drives about 45,000 miles per year.
Why would you perform a relative compression test?
How accurate is a relative compression test?
if all of the cylinders have about the same loss of compression due to wear of cylinder parts, the relative compression test would not detect this condition; typical error is about 10% but in some cases, if specific engine units are not functioning correctly, it can rise up to 20%;