d) Valve spring z Inspect the outlook of valve spring z By means of spring tester, and if necessary replace it. 1.0 mm or less measure the tension and free length. Free length z Measure the perpendicularity of z In case that the measured value valve spring. exceeds the limit value, replace it. EFM2039I e) Assembling cylinder head z Clean the cylinder head thoroughly. z Coat the valve stems and valve guides with engine oil and assemble the valves. z Replace the valve stem seals with new ones and insert the stem seals to the valve guides of cylinder head with a special tool. (Be careful for the valve stem seals not to be damaged) z Install the valve spring washer to valve guide.
z After putting on the inside, outside spring, install the valve spring seat on them. NOTE : Install the valve spring seat with “TOP” (painted in yellow) side up. z Pressing the spring down with a special tool, assemble by inserting the valve cotter. z After the valve is assembled, inspect the valve tapping it lightly with an urethane hammer if accurate assembling was done. EFM2040I Inspection - 67 - Inside Spring Free length 65.5 mm When given a regular load (15 ~ 17 kg) 46.3 mm Outside Spring Free length 64 mm When given a regular load (37 ~ 41 kg) 46.3 mm