How to change LB7 injectors with pictures?
How to change LB7 injectors with pictures?
Tighten the 12mm banjo bolt that goes into the head to 11 lb ft Put a bead of sealant to the bottom of the upper valve cover about 2-3mm wide and 1mm high and install the upper valve cover. One thing to take note of upon reassembly, is to seal the top of the high pressure line fitting.
How are the injectors fixed to the harness?
(Disregard the bottle jack!) To get the lower valve cover off you gotta disconnect and remove the injector wire harness. Its held down to two injectors with four 7mm nuts and two gold 10mm bolts. The 7mm nuts are permanently fixed to the harness so you don’t have to worry about loosing them.
How do you remove glow plugs on LB7?
(Some LB7’s have a wire that goes to each individual glow plug. – These will all have to be removed.) Remove the Keepers on the high pressure fuel lines with a 8mm socket. (Or Phillips screw driver)
How do you change the FF AD injectors?
For the top one, pull up and towards the drivers side on the tab, and it will slide the connector out of the FICM. Pull down on the bottom connector and it comes off the same. After disconnecting nearly all the engine wire harness you can pull it out of the way. and then start removing the FF ad FICM.
How do you change injector Cup on LB7?
Start by removing the passenger side wheel. Then drain the coolant from the radiator by removing the drain plug on the bottom passengers side. (This is necessary in case an injector cup comes out with an injector. – If this happens and the coolant is not drained, you will fill the cylinder with coolant.
How to change LB7 injectors with banjo washer?
2. Install Kit – 8 Joined banjo washer pairs for connecting return lines to each injector, 5. 2 tubes of “Permatex Ultra Grey” RTV silicone sealant. Start by removing the passenger side wheel. Then drain the coolant from the radiator by removing the drain plug on the bottom passengers side.
What kind of pump does the LB7 engine use?
The LB7 uses a 23,000psi rail along with a Bosch CP3 injection pump, also known as a high pressure fuel pump. Aside from the carbon buildup caused by DI, the fuel injectors themselves are also very common failure points, even on non-GM engines. The LB7 injectors had two potential design flaws that could cause injector failure.
What causes a fuel injector to fail on a LB7?
Aside from the carbon buildup caused by DI, the fuel injectors themselves are also very common failure points, even on non-GM engines. The LB7 injectors had two potential design flaws that could cause injector failure.
How do you disconnect the FICM on a LB7?
The connectors on the FICM have tabs that slide up and down to disconnect them. For the top one, pull up and towards the drivers side on the tab, and it will slide the connector out of the FICM. Pull down on the bottom connector and it comes off the same.
What do you need to install a LB7 injector?
Each LB7 injector includes O-rings and copper crush washers necessary for installation. In order to complete the installation of your new injectors, we recommend replacing the return line seals and lower valve cover gaskets, which can be found HERE and HERE.
What is the VIN code for Bosch LB7 injectors?
LB7 2001-2004.5 Chevrolet/GMC 2500/3500/4500/5500 6.6 Diesel Vin Code “1” LB7 Injectors, BOSCH ® OEM Brand New Fuel Injectors. These LB7 injectors are BRAND NEW from BOSCH ®. These are the most up to date version of the previously troublesome LB7 injector.
Are there any new Bosch fuel injectors out there?
LB7 Injectors, BOSCH ® OEM Brand New Fuel Injectors. These LB7 injectors are BRAND NEW from BOSCH ®. These are the most up to date version of the previously troublesome LB7 injector.
