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take out the cylinder head bolts
The intake is larger on virtually all internal combustion engines.
You can adjust the camshaft on your 1997 Mazda 626 with the camshaft adjustment bolts. You can access the camshaft adjustment bolts by removing the cylinder heads.
To remove the cylinder heads from a 2002 Isuzu Rodeo, first disconnect the battery and drain the engine coolant. Next, remove the intake and exhaust manifolds, along with any accessories obstructing access to the cylinder heads, such as the timing belt or chain. Unbolt the cylinder head bolts in the correct sequence to avoid warping, and carefully lift the cylinder heads off the engine block. Be sure to clean the surfaces before installing new gaskets or components.
Cylinder heads are installed on a Chevy 454 big block engine by placing the gasket down on the engine block and positioning the heads over the marking tabs. The bolts are then installed and torqued to specs in sequence.
Cylinder heads can be bought in bulk from Sportflo in South Africa or try American Cylinder heads if based in the US. For other buyers try Bridge Cylinder Heads in Cheshire, UK.
You use a torque wrench for tightening bolts to an exact pressure. This is particularly important in things where many bolts must all be the same tightness, such as cylinder heads in engines, and parts of transmissions.
The lifters are in the cylinder heads.The lifters are in the cylinder heads.
There are two cylinder heads on a V6 3.1L engine.
When removing cylinder heads, the fasteners should be removed in a specific sequence to avoid warping the head. Typically, this involves loosening the bolts in a crisscross pattern, starting from the center and working outward. This helps evenly distribute the stress across the head as the bolts are loosened. Always consult the specific vehicle's service manual for the correct order and specifications.
The intake valve is larger. This is true on virtually all internal combustion engines. The reason for this is that it is far easier to get the spent exhaust gasses out of the cylinder since they are still under high pressure due to expansion from burning (80+psi), than it is to get the fresh mixture into the cylinder using only atmospheric pressure (14.7psi). If you are referring to traditional Pontiac V8s the intake valve was usually 2.11" the exhaust was 1.77" or 1.66" on later "smog" heads.