Genuine Mazda MPV Rocker Arm

Mazda MPV Rocker Arm Parts and Q&A

• Rocker Arms
  G601-12-150A
  Q: How to remove and inspect the camshaft bearing caps and rocker arm assembly on Mazda MPV?

  A:

  The camshaft bearing caps are also taken out and the rocker arm assembly. To ensure that the other end of the camshaft does not pop-up with tension of the timing chain after the assembly has been lifted off, an assistant should also keep the opposite end down by holding the opposite end bearing cap in place until reassembled. Check the caps and the camshaft bearing journals whilst the caps have been removed. First, loosen the lid of the Valve Cover and place the Piston with the number one on Top Dead Center. Hold the transmission end of the camshaft in place with an assistant, loosen the camshaft bearing cap bolts one or two steps at a time but leave the bolts in place. Install the bearing cap at the transmission end to hold the camshaft in place, and then remove the rocker arms and shaft assembly out of the cylinder head. Should it be desired to disassemble and examine the rocker arm assemblies, loosen the retaining bolts and then take the rocker arms, springs and bearing caps off the shafts, making note of their relative positions so that they can be reassembled. Wipe off and check the wear and damages including checking the faces, tips and surfaces of rocker arms and shafts on scoring and excessive wear and replacing damaged parts. Assemble all the parts with either assembly lube or engine oil, before reassembling the shafts, ensuring that the markings on the shafts and caps are oriented. Installation lubricant should be applied to the cam lobes and journals, anaerobic sealant to the contact surfaces of the cylinder head of the bearing caps, and the rocker arm assembly should be installed. Install the camshaft bearing cap bolts to the recommended amount in a series of small steps and reinstall in that order of removal. Lastly, bring the engine to test, oil leakage, and correct functioning.