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Home >> Mercury >> 1987 >> Lynx XR3 >> Repair and Diagnosis >> Engine Performance >> System >> Fuel Injection System - 4-CYL Diesel >> Testing >> Cold Start Device Diagnosis >> Notes

Cold Start Device Diagnosis: Notes

  1. Engine must be at normal operating temperature. Rotate CSD lever clockwise to stopper. Use Photoelectric Tachometer (Rotunda 99-0001) to check engine RPM.
  2. Engine speed must be 1450-1550 RPM. If not, check injection pump timing. See Figure . Check cold start device to verify proper operation. See Figure .
  3. Apply 20 in. Hg of vacuum to CSD diaphragm. CSD lever should move 1.1" (28 mm). If not, and vacuum diaphragms are not leaking, replace injection pump.
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