1990 Nissan Cylinder Head Assembly: Service and Repair Installation

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Filed Under (Nissan) by admin on 27-08-2010

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When installing camshafts, camshaft bracket, oil seals, or other sliding parts, lubricate contacting surfaces with new engine oil. – Apply new engine oil to threads and seat surfaces when installing cylinder head, camshaft sprocket, and camshaft bracket. Do not put hydraulic lash adjusters (HLA) upside down, otherwise air will enter HLA, causing it to make a noise. Do not disassemble HLA. Attach tags to HLA so as not to mix them up. HLA should be immersed in engine oil. Installation 1. Set No.1 piston at TDC on its compression stroke as follows: a. Align crankshaft sprocket aligning mark with mark on oil pump body. b. Align camshaft sprocket aligning mark with mark on timing belt rear cover. 2. Install cylinder head with new gasket. Caution: – Be sure to install washers between bolts and cylinder head. – Do not rotate crankshaft and camshaft separately, or valves will hit piston heads. 3. Install cylinder head bolts. Install short bolts “L2″ into the correct holes of cylinders #1 and #6 as shown in image of step 4 f. Apply engine oil to threads and seating surfaces of cylinder head bolts before installing them.

2001 Nissan-Datsun Quest Minivan SE Timing Belt: Service and Repair

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Filed Under (Nissan) by admin on 09-08-2010

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CAUTION: – Do not bend or twist timing belt. – After removing timing belt, do not turn crankshaft and camshaft separately because valves will strike piston heads. – Make sure that timing belt, camshaft sprocket, crankshaft sprocket and belt tensioner are clean and free from oil and water. – Installation should be carried out when engine is cold. Removal 1. Jack up the vehicle front and support with safety stand. 2. Remove engine under cover. 3. Remove front RH wheel and engine side cover. 4. Drain engine coolant from radiator. 5. Remove the following belts. – Compressor drive belt – Generator drive belt – Power steering pump drive belt Timing Marks 6. Set No. 1 piston at TDC of its compression stroke. 7. Loosen crankshaft pulley bolt. 8. Remove crankshaft pulley using a suitable puller. 9. 10. 11. 12. 13. Remove radiator upper hose and water inlet hose. Remove compressor drive belt idler bracket. Remove water pump pulley. Remove breather pipe from timing belt front upper cover. Remove timing belt front covers.