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FUEL SYSTEM Inspect and overhaul throttle disc 39. Using suitable drift, drive out bushes. 36. Examine throttle shaft for excessive wear CAUTION: Take care not to damage plenum between bushes in plenum chamber and chamber bores shaft. A small amount of clearance is If excessive wear is evident fit new shaft and bushes as follows. 37. Remove two split screws securing throttle disc and withdraw disc. 40. Press in new bushes until flush with throttle disc bore. CAUTION: Ensure that bushes do not protrude will interfere with movement of throttle disc. CAUTION: Take care not to damage shaft. 41. Fit throttle shaft and disc, secure with two split screws. Do not fully tighten screws. 42. Rotate throttle shaft 360° once or twice to centralise disc in bore. Tighten split screws. 43. Rotate shaft. Use screw driver to spread split. 38. Remove shaft and air seal from plenum chamber. REISSUED: FEB 1993 17 |