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Nissan 240SX/Altima 1993-1998 fix GuideTiming Chain and Sprockets * removal & environment 1. Disconnect the an unfavorable battery cable. 2. Drain and also recycle the engine coolant. 3. Drain and recycle the engine oil. 4. Eliminate the engine undercover. 5. Label and also disconnect all suitable vacuum hoses, fuel lines, wires and electrical harnesses. 6. Eliminate the alternator and also bracket, upper radiator hose, wait duct, and front exhaust tube. 7. Remove the input manifold collector supports, input manifold collector, and also exhaust manifold. 8. Set the No. 1 piston in ~ TDC top top its compression stroke. 9. Eliminate the distributor. 10. Place a floor jack with a block of lumber beneath the aluminum oil pan and also remove the passenger"s next engine mount. 11. Remove the cylinder head cover. Eliminate the cylinder head cover bolts in the suitable sequence. 12. Eliminate the camshaft sprockets. The stoppers on the camshaft covers protect against the upper timing chain indigenous disengaging the idler sprocket. 13. Eliminate the electronic came bearing hat in the proper sequence and also remove the camshafts. The camshaft brackets must be loosened in turning back order that the tightening succession to prevent damage to the camshaft. These parts should be reassembled in their original positions. 14. Ease the cylinder head bolts in the turning back order of installation. A warped or cracked cylinder head could an outcome from loosening in an untrue order. The cylinder head bolts need to be loosened in 2 or three steps. 15. Eliminate the electronic came sprocket cover. 16. Eliminate the top chain tensioner and upper chain guides. 17. Eliminate the top timing chain. 18. Eliminate the idler sprocket bolt. The stoppers ~ above the prior cover protect against the reduced timing chain from disengaging the crankshaft sprocket. 19. Remove the cylinder head and also gasket. 20. Eliminate the oil pan. 21. Eliminate the crankshaft damper. 22. Eliminate the former cover. 23. Eliminate the oil pump drive spacer. 24. Remove the reduced timing chain tensioner, stress and anxiety arm, and lower time chain guide. 25. Remove the lower timing chain and idler sprocket. Come install: 26. Install the crankshaft sprocket and oil pump journey spacer. Ensure that the adjustment marks on the crankshaft sprocket confront the former of the engine. 27. Set the No. 1 piston in ~ TDC on its compression stroke. 28. Install the idler sprocket and also lower time chain. 29. Collection the lower timing chain ~ above the sprockets, aligning the adjustment marks. The adjustment marks ~ above the time chain assembly will be silver. 30. Install the chain stress arm and also chain guide. 31. Install the reduced timing chain tensioner. 32. Download a new front covering oil seal. 33. Use a constant bead of fluid gasket, as illustrated, to the prior cover. 34. Download the former cover. Tighten the M6 attaching bolts to 56-66 customs lbs. (6.4-7.5 Nm). Tighten the M8 attaching bolts to 12-14 ft. Lbs. (16-19 Nm). 35. Install the crankshaft damper. 36. Download the oil strainer and also oil pan. 37. When installing the former cover, install the cylinder head. Insert, but do not tighten the cylinder head bolts. Use engine oil to the bolt threads and also seat surfaces. Ensure the the washers between the bolts and cylinder head are properly positioned. 38. In the interim tighten the cylinder head bolts. This is important to prevent damaging the cylinder head gasket. 39. Download the upper timing chain, chain tensioner and chain guide. 40. Set the upper timing chain ~ above the idler sprocket, aligning the mating marks. 41. Apply a constant bead of liquid gasket, as illustrated, come the camer sprocket cover. 42. Download the cam sprocket cover. Be cautious not to damage the cylinder head gasket. Be cautious that the upper timing chain does not slip or jump as soon as installing the video camer sprocket cover. 43. Tighten the cylinder head bolts in the shown sequence come the appropriate specification. 44. Download the camshafts and also camshaft bearing caps. 45. Install the camshaft sprockets (with the chain attached). 46. Download the chain guide in between both camshaft sprockets. The alignment clues on the upper section of the timing chain must now be aligned. 47. Install the distributor. Ensure the the No. 1 piston is set at TDC and also the distributor rotor is collection at No. 1 cylinder spark position. 48. Install the cylinder head cover and also tighten the it is registered bolts in the indicated sequence to the proper specification. 49. Install the input manifold collector, intake manifold collector supports, and exhaust manifold. 50. Download the alternator and also bracket, upper radiator hose, wait duct, and front exhaust tube. 51. Affix all suitable vacuum hoses, fuel lines, wires and electrical harnesses. 52. Install the engine undercover. 53. Refill the engine v the exactly grade and also viscosity of engine oil. 54. Refill and bleed the cooling system. 55. Affix the negative battery cable. 56. Start the engine and make the crucial adjustments. 57. Examine for suitable operation and leaks. | Repair travel guide | Engine mechanically | timing Chain and also Sprockets | AutoZone.comapparently, there"s a concealed cover bolt that calls for engine mount to it is in removed, ~ above the pass side, along with a bracket, come uncover that bolt. Check that attach i posted out.