Cat 3406b air fuel ratio valve. Remove And Install Fuel Ratio Control 1.

Cat 3406b air fuel ratio valve. Remove the O-ring seal from the fuel ratio control. Consists of : Check the condition of the four O-ring seals on top of the governor housing where the fuel ratio control mounts. Thanks! Select Caterpillar® Applications : 3406 Series Engines. Well, I put air to it and had air blowing out around the bolts that hold the assembly to the pump. Disconnect the fuel ratio control from the lever in the governor and remove the fuel ratio control (2). Check the leak down rate of the fuel ratio control (with the engine operating at low idle) as follows: a. 3. 2. If any of the seals are worn or damaged, make a replacement with new parts. Took it apart and this is what I found. Connect a pressure gauge, a shutoff valve, a pressure regulator and an air supply to fitting (12). Remove the O-ring seals from the rear governor housing. Is that the fuel ratio adjustment on the top of the governor where the air line from the intake goes in? Any education on this would be appreciated. 12. Remove And Install Fuel Ratio Control 1. Proprietary / Custom Kit. of boost and runs at 950 or less EGT. Dec 3, 2010 · Generates about 27-30 lbs. OEM Reference : Caterpillar N/A. Release all air pressure from the fuel ratio control. Searches here showed how to check diaphragm and adjust if it was ok. Turn the shutoff valve "OFF" and check the leak down rate. . Sep 17, 2016 · I have been working on a 88 3406b in a ford 9000 and it has been really sluggish to spool turbo at low rpm. c. Remove tube (1). Start at 900 rpm and rapidly move the governor control shaft to the full FUEL ON position and note the reading on the indicator. Apply 70 kPa (10 psi) air pressure to the fuel ratio control. Remove the two bolts that hold fuel ratio control to the governor. Smokes a little more than I like at take off and when accelerating after gear change. Contents below. b. Air / Fuel Ratio Repair Kit. hqmjg usjlny rsnrpio wkpbg lcei mgyfg ruopq rhkgs jponr edkag