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TM-9-2815-200-35 Maintenance Manual for AVDS-1790-2M AVDS-1790-2A and AVDS-1790-2AM Engines Download

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Disassemble Note. The right and left manifold heater assemblies are similar except for the position of the spark plug and heater housing plug. The two parts are reversed for the left heater assembly. 1. Remove spark plug (A). Remove and discard spark plug gasket. 2. Remove pipe elbow (B). 3. Remove pipe elbow (C). 4. Remove bushing (D). 5. Remove manifold heater spray nozzle and holder assembly (E). 6. Remove two flat head screws (F) and remove baffle. Note. The two screws (F) are staked in place. It may be necessary to remove the stake marks before attempting to remove screws. 7. Remove heater housing plug (G). Remove and discard plug gasket. Remove 1. Loosen two hose clamps (A). 2. Remove right turbosupercharger air outlet elbow (B). 3. Remove rubber hose (C) and clamps. Separate two clamps from hose. 4. Loosen two hose clamps (D). 5. Remove air outlet tube (E) from hose. 6. Remove rubber hose (F) and clamps. Separate two clamps from hose. Install 1. Position two hose clamps (D) on rubber hose (F). Position hose on heater tube. 2. Position air outlet tube (E) in hose. 3. Tighten two hose clamps (D). 4. Position two hose clamps (A) on rubber hose(C). Position hose on air outlet tube. 5. Position right turbosupercharger air outlet elbow (B) in hose. 6. Tighten two hose clamps (A). Note. Instruction covering housing plug (G) Figure 6-230. Removing or installing air is applicable only to engines equipped with a outlet tube and associated parts. plug. Assemble 1. On engines equipped with a plug, position a new plug gasket on heater housing plug (G) and install plug in manifold heater housing. 2. Position baffle in housing and install two flat head screws (F). Stake screws in place. 3. Install manifold heater spray nozzle and holder assembly (E) 4. Install bushing (D) in holder assembly. 5. Install pipe elbow (C) in bushing. 6. Install pipe elbow (B) in holder assembly. 7. Position a new spark plug gasket on spark plug (A). Install spark plug in housing. Figure 6-229. Disassembling or assembling manifold heater assembly. 6-195