exhaust horse power

well its 4:30 am and i cant figure out why when you let off the throttle the jake brakes work. i know jakes open the exhaust valve on the power stroke  thus making the engin use horse power to slow the truck instead of speeding up. The jake itself is made up of springs and valves that are controlled by oil pressur. To get to them the valve cover comes off on a isx cummins they will be on the exhaust side on the rockers there will be three of them," power exhaust and injector". the  exhaust you will see a round thimbel with a snap ring around it. when you press down on that it willrock back slightly when you press foword it will rock foword like an inch that is the exhaust  valve. if you ever take the snap ring off the internals are simple litterly two springs and a shaft.

Diesel

This is what the valves are set at on the isx Cummins on the Dino 11/14/12. The first set of valves at make A ether cylinder 1 or 6 "brake exhaust and intake" are the ones that take the longest to measure. Starting out you don't know the range to start with after the first few you measure it gets easier because you start a routine. you start jotting down the feeler gauge measurements and if the motor is correctly adjusted they will be similar or in specs from the Cummins website.

 black dodge codes found that the injectors are open!

dpf

The truck was throwing up codes for the diesel particulate filter. The valve for the fuel was taken off the truck and put onto a beacon for measuring. The amount of diesel that gets injected into the particulate filter is about 8 oz.

Safety is key

WARNING:

HIGH-PRESSURE FUEL LINES DELIVER DIESEL FUEL UNDER EXTREME PRESSURE FROM THE INJECTION PUMP TO THE FUEL INJECTORS. THIS MAY BE AS HIGH AS 23,200 PSI (1600 BAR). USE EXTREME CAUTION WHEN INSPECTING FOR HIGH-PRESSURE FUEL LEAKS. FUEL UNDER THIS AMOUNT OF PRESSURE CAN PENETRATE SKIN CAUSING PERSONAL INJURY OR DEATH. INSPECT FOR HIGH-PRESSURE FUEL LEAKS WITH A SHEET OF CARDBOARD. WEAR SAFETY GOGGLES AND ADEQUATE PROTECTIVE CLOTHING WHEN SERVICING FUEL SYSTEM. this is a warning label from aldata Pressure/velocity related injury to the index finger estimated at between 100-1,000 lbs/sq.in.  i looked up some more on the lethal strike video and on the web and saw this pressure warning but i think its being nice you could several injury at even lower psi

way way over 300 hours for work and right on track for school

I took a fuel presser test from the fuel filter and manafold, both read 65 psi.smthing i learned over the weekend is a blinker light just because it has three wires comming off it and has a cool flash took it doesnt need all three wires hooked up. I took about a half hour rewiring this blinker nice and neat. the wiring was all green and didnt work. i asked the driver to try his blinker and yes it blinked like the other side but what i didnt know is that three wire set up is so if you wanted the blinkers to act as running lights for the front. what i wired up was running slash blinkers for the rear. Thats  illigal

Thats a shock

 This is the valve cover on the 7.3 in the shop at school. I took the cover off because iv never seen wires integrated into a gasket before. Don't poke holes in wires you could get shocked says the manufacture.

The glow plugs take alot of current to run them.

Schooling in Motion

 plastic gauge it came in within specification the tolerance the kobota book called for were .0007 to .0020 and we measured .0015

 upon disassembling this motor we found no rings. one thing i can take from this motor dissembly is i know the names for the parts allot better and there locations on the motors. another piece of information i learned it the 4 Cly are a shaky motor due to being only a 4. one thing kobota did to stop this is add weight balancers ran off an idler gear.

this is a corroded battery i found at work on a service i did. just tells you always check every thing when servicing machiniory