Geely MR479Q Manual
                                                                                                                                                                                                      | |
Contents
| 
1. Valve tappet (see Section 2 of Chapter 3 for reference)Measure the tappet bore of cylinder head with a caliper and its diameter with a micrometer caliper. The actual oil film clear-ance is deduced by subtracting the tappet diameter from the tappet bore. If the oil film clearance is bigger than themaximum value, the tappet shall be replaced. When necessary, replace the cylinder head.III. Valve Train Assy.1. Check the valve stem and guide2. Check and grind the valve3. Check and clean the valve seat4. Check the valve springIV. Service of Timing Gear, Belt and Tensioner1. Timing beltWhile servicing the timing belt, be sure not to bend, twistor upturn it. Keep the belt away from engine oil, water orsteam. Do not make use of the belt tension whendetaching the bolts of timing pulley of camshaft.Pay attention to direction and position when reinstalling atiming belt undertaking detaching.Therefore, you need tomake a mark during detaching . See Fig. 202.II. Camshaft and bearing seat1. Check the run-out of camshaft. If the radial run-out is larger than the maximum, replace the camshaft.2. Check the peach tip height of cam, and if not up to the standard, replace the camshaft.3. Check the camshaft journal. If the diameter is not up to the standard, check the oil film clearance.4. Check the cam bearing for peeling-off or scorching. If damaged, it is necessary to replace the complete set of bearingand cylinder head.5. Check camshaft gear spring. If the free length is not up to the standard, have the gear spring replaced.6. Check the oil film clearance of camshaft journal, and if it is larger than the maximum value, replace camshaft. If neces-sary, replace the complete set of bearing and cylinder head.7. Check the axial clearance of camshaft. If it is larger than the maximum, replace the camshaft. If necessary, replace thecylinder head.8. Check the camshaft gear clearance. If it is larger than the maximum, replace the camshaft.Section 4 Service of Valve TrainFig. 202 Alignment of compression TDC mark89 |
manualsdatabase
Your AI-powered manual search engine