Genuine Mercury Capri Oil Pump

Mercury Capri Oil Pump Parts Questions & Experts Answers

• Oil Pump Assembly
  C2OZ-6600-A
  Q: How to service a oil pump on Mercury Capri?

  A:

  The oil pump for the V6 engine is mounted externally on the timing chain cover. Begin by detaching the oil filter and removing the oil pump cover bolts. After detaching the cover and gasket, remove the gears from the cavity in the timing chain cover and discard the gasket. Clean and inspect the oil pump cavity; if the oil pump gear pocket is damaged or worn, replace the timing chain cover. Remove all traces of gasket material from the oil pump cover and check for warpage with a straightedge and feeler gauges; if warped more than 0.0016-inch, replace it. To remove the pressure relief valve, detach the timing chain cover from the engine, drill a hole in the plug, and pry it out or use a slide hammer and screw adapter. Remove the spring and valve from the bore, ensuring all metal chips are cleared and checking for wear, score marks, and galling; if the bore is worn or damaged, a new timing chain cover is necessary. The valve should fit without noticeable side play or binding, and if the spring appears fatigued or collapsed, replace it. Measure the spring tension against the specifications to assess its condition. Apply clean engine oil to the valve and install it in the bore, followed by the spring and a new plug, tapping it in until it is 0.010-inch below the machined surface of the cover. For the V8 engine, unbolt and lower the oil pan, then remove the oil pick-up tube-to-main bearing cap nut and the oil pump mounting bolts. Lower the oil pump assembly into the oil pan and lift them both out together; if the pump is faulty, install a new one instead of attempting repairs. Prime the oil pump before installation by pouring clean oil into the pickup and turning the pump shaft by hand. If separating the pump from the pickup tube, use a new gasket and securely tighten the bolts upon reattachment. Fit the oil pump driveshaft into the pump, ensuring it seats fully without forcing it; if misaligned, turn the pump slightly and try again. Finally, install the mounting bolts/nut and tighten them to the specified torque.