Genuine 2012 Nissan Juke Cylinder Head

2012 Nissan Juke Cylinder Head Parts Questions & Experts Answers

• Q: What are the steps involved in removing and refitting the cylinder head with a diesel particulate filter on 1.5L diesel 2012 Nissan Juke?

  A: On all Type 2 engines and Type 1 engines with a diesel particulate filter mounted behind the cylinder head in the engine compartment, the engine/transmission assembly must be removed for this operation due to insufficient clearance for cylinder head removal and refitting. This procedure applies only to Type 1 engines with a diesel particulate filter in the exhaust system front pipe. A new cylinder head gasket must be fitted, and all cylinder head bolts must be renewed, along with sealant for the cylinder head cover. Before starting work, allow the engine to cool to minimize fuel pressure and temperature. Disconnect the battery negative lead, drain the cooling system, and remove the cylinder head cover. Disconnect the quick-release vacuum pipe from the brake vacuum pump, remove hoses and coolant temperature sensor wiring, and take off the timing belt and camshaft sprocket if necessary. Unbolt and remove the timing belt tensioner roller, inner timing cover, high-pressure fuel pump, and turbocharger, disconnecting any remaining wiring from the cylinder head. Seek assistance if needed to lift the heavy cylinder head assembly. Before removal, turn the crankshaft anti-clockwise by a quarter turn to position all four pistons halfway down their bores, then progressively slacken and remove the cylinder head bolts, lifting the head off the block carefully. Ensure the mating faces of the cylinder head and block are clean before refitting, using a scraper to remove gasket and carbon, and sealing oil and water channels to prevent debris entry. Check for damage on the block and head, and if warpage is suspected, use a straight-edge to check for distortion. Clean out the cylinder head bolt holes and examine the threads for damage, renewing the bolts each time they are removed without oiling them. Refit the cam followers, camshaft, and camshaft sprocket, ensuring the cylinder head locating dowels are fitted and the new gasket is placed correctly. Lower the cylinder head onto the dowels and gasket, hand-tightening the new bolts without oiling them, then tighten in sequence. Turn the crankshaft clockwise until the internal web contacts the TDC timing pin, refit the inner timing cover, auxiliary drivebelt tensioner, timing belt tensioner roller, timing belt, turbocharger, fuel rail, and high-pressure fuel pump. Reconnect hoses and coolant temperature sensor wiring, the quick-release vacuum pipe, and the cylinder head cover, then reconnect the battery negative lead. Finally, prime and bleed the fuel system and refill and bleed the cooling system.