Genuine 2007 Nissan Maxima Cylinder Head

2007 Nissan Maxima Cylinder Head Parts Questions & Experts Answers

• Q: How to disassemble the cylinder head and organize the components for reassembly on 2007 Nissan Maxima?

  A: While used cylinder heads can be located for most engines including the necessary hardware; new and remanufactured cylinder heads can be easily purchased from dealerships or auto parts store; thus it becomes more feasible and cost effective for DIY mechanics to source new heads instead of cleaning up the old one, inspecting for defects, ordering appropriate tools and parts that might not be easily available. On disassembly, the intake and exhaust valves have to be removed together with other auxiliaries like the rocker arm, the lifter, and the camshaft where relevant. Parts must be packed and labelled in a manner that allows it to be reinstalled in exact locations it was originally from. On SOHC engines, lifters should never be laid down on one side or upside down in an effort to drain oil as this traps air, and the only time one can position a lifter horizontally is when it is submerged in clean engine oil. This is the right time to label and store valve so that after repairing is completed, the proper valve is replaced to its own guide. To dismantle the first valve, the springs on the valve should be compressed with a spring compressor to remove the valve stem locks; releasing the compressor gently will help remove the retainer, spring and the spring seat if available. The valve can then be pulled out, and the oil seal separated from the guide, if valve is stuck it should be shoved back and surrounding the area of valve stem lock groove should be treated to eliminate sharp edges. This should be done for the other valves until all the components for each of the valves are grouped together. Following every aspect has been stripped and classified it ought to be thoroughly rinsed and examined as well as the engine dismantled if a comprehensive overhaul is being done prior to the process of cleaning and inspection.