Genuine Mitsubishi Galant Valve Lifter

Mitsubishi Galant Valve Lifter Parts Questions & Experts Answers

• Valve Lifters
  MD377054
  Q: How to inspect and replace Valve Lifter(s) in the 2.4L DOHC and SOHC engines on Mitsubishi Galant?

  A:

  To disassemble the 2.4L DOHC engine, remove the camshafts first, then remove the Rocker Arms. If the Valve Lifters are still in the head, lift them out, ensuring you keep them in order. Check each Valve Lifter for wear and damage particularly on the ball tip that contacts the rocker arm. If there are concerns about condition or if valve "tapping" noises are happening consider replacing them. Partially filling the Valve Lifters with engine oil will show that plunger doesn't move much when pressed. If the plunger's travel is excessive, immerse the Valve Lifter in clean engine oil, then pump the plunger until the travel is eliminated; if it still travels when full of oil, replace it. After replacing the Valve Lifters, expect tapping sounds when the engine is restarted. If the noise persists after warming up the machine when it has been set at 3000 rpm for 1 minute, change the faulty adjusters. The Valve Lifter on the 2.4L SOHC engine is a part of each rocker arm and cannot be replaced. Detach the rocker arm shafts without removing the rocker arms. Examine each Valve Lifter for signs of wear and damage especially at the surface which contacts the valve tip. If in doubt, or if valve "tapping" noise is evident, consider replacing the complete rocker arm/Valve Lifter. If Valve Lifters were removed, refit rocker arms onto their shafts. It's recommended to partially fill the Valve Lifters with engine oil. If you see excessive plunger travel, fully submerge the rocker arm assembly in quality engine oil. Then, pump the plunger until the excessive travel has been eliminated. If it travels when completely full of oil, then replace it. Once the rocker arm/Valve Lifters have been replaced, restart the engine. You should hear some "tapping" noises. After warm-up, run the engine at 3,000 rpm for one minute; if the noises do not stop, replace the defective assemblies.
• Valve Lifters
  MD377560
  Q: How to remove and reinstall the Rocker Arm assembly and Valve Lifter in the V6 engine on Mitsubishi Galant?

  A:

  To disconnect the rocker arm assembly first, detach the cable from the negative battery terminal before bringing the number one piston to TDC. Remove the valve cover(s) and mark each rocker arm and shaft in its proper position, not to mix up their respective places or will wear prematurely. Gradually loosen the rocker arm shaft bolts until they can be handled by hand and leave them in place to prevent disassembly during removal. Each Valve Lifter must be fitted with a special hydraulic actuator holder in order to avoid dropping into the engine. Alternatively, use vinyl tape. Remove the rocker arms and shaft assemblies from the cylinder head and place them aside, keeping the parts organized. Using your eyes look at the rocker arms for excessive wear or damage. Check each Valve Lifter for wear on the contact surface with the valve tip. If the Valve Lifter are blocked or you suspect they're faulty, replace the rocker arm/Valve Lifter assembly. Check all components of the rocker arm shaft for cracks or excessive wear, replacing as necessary. Prior to fitting the unit check that the Valve Lifters are partially filled with engine oil and if necessary pump plunger to remove excessive travel. Position the camshaft lobes down and away from each other to make installation easier. The rocker arms and shaft springs should be replaced in their original locations. Then fit the rocker shaft clips. Place the rocker arm assemblies with the notches in the correct position. Tighten the bolts in the order specified in three stages to the specified torque. Reverse the removal steps to finish installing, then check for leaks and functioning of oil by running the engine. Following the replacement of the rocker arm/Valve Lifter, noise can be detected. The noise is caused by air in the system. A quick rev will help bleed the system. Start the engine and let it warm up to operating temperature. Gradually increase the speed from idle to 3000 and back to idle. If you make several attempts and the adjusters stay noisy replace the assembly.