Honda Bmw 5 Service Manual
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Cylinder Head Removal - an-]
Fit thrust spacer (A) to intake camshaft (B) and tighten down
with threaded locating studs. Place longer threaded end of
studs into camshaft
(arrows).
Tightening torque
Impulse
wheel studs to intake camshaft) 20 Nm (15 ft-lb)
Fit primary sprocket to primary timing chain and install on ex-
haust camshaft so that pointer on sprocket
(arrow) lines up
with cylinder head sealing surface.
4 Insert BMW special tool 11 4 220 into timing chain tensioner...](http://img.usermanuals.tech/thumb/34/100712/w64_bmw-5-service-manual-1509562501_d-140.png "Page 141
Cylinder Head Removal - an-]
Fit thrust spacer (A) to intake camshaft (B) and tighten down
with threaded locating studs. Place longer threaded end of
studs into camshaft
(arrows).
Tightening torque
Impulse
wheel studs to intake camshaft) 20 Nm (15 ft-lb)
Fit primary sprocket to primary timing chain and install on ex-
haust camshaft so that pointer on sprocket
(arrow) lines up
with cylinder head sealing surface.
4 Insert BMW special tool 11 4 220 into timing chain tensioner...")
Cylinder Head Removal - an-] Fit thrust spacer (A) to intake camshaft (B) and tighten down with threaded locating studs. Place longer threaded end of studs into camshaft (arrows). Tightening torque Impulse wheel studs to intake camshaft) 20 Nm (15 ft-lb) Fit primary sprocket to primary timing chain and install on ex- haust camshaft so that pointer on sprocket (arrow) lines up with cylinder head sealing surface. 4 Insert BMW special tool 11 4 220 into timing chain tensioner bore and bring center spindle into contact with tensioning rail. Tighten until slack is removed, but do not pretension timing chain. NOTE- BMW special tool 11 4 220 is an adjustable primary chain tensioner and simulates the function of the tensioner. - Rechecic arrow on primary sprocket is aligned with upper edge of cylinder head. Reposition sprocket if necessary. Insert and tighten down threaded locating studs (arrows) in end of exhaust camshaft. Note installed position of studs. Tightening torques Exhaust camshaft locating stud 20 Nm (15 ft-lb)
I Cvlinder Head Removal and Installation 4 Install secondary chain tensioner on cylinder head (arrows). Keep tensioner compressed using BMW special tool 11 3 291 or suitable pin. < Install exhaust camshaft splined sleeve. Confirm that gap in sleeve splines aligns with corresponding gap in camshaft splines (arrows). Slide splined shaft onto exhaust camshaft. Be sure that locat- ing tooth of shaft fits into spline gaps of camshaft and splined sleeve (arrows). - Push splined shaft in further to rotate splined sleeve until the three threaded holes in primary chain sprocket are centered in the small slots of the splined sleeve. 4 Place intake and exhaust sprockets in BMW special tool 11 6 180. Position spline gap on intake sprocket (arrow) as shown and place secondary chain on sprockets.
-7 Cylinder Head Removal and lnstallat~on -- -- - - Remove chain and sprockets from tool and slide sprockets on camshafts. Confirm that gap in intake sprocket splines lines up with corresponding gap in camshaft splines (arrow). CAUTIOI\C Do not alter position of sprockets with respect to chain when removing from special tool 11 6 180. < Align locating tooth of splined shaft with gaps on camshaft and sprocket. Slide splined shaft onto intake camshaft until approx. 1 mm (0.04 in) of splines (arrows) are visible. 4 Install intake camshafl spring plate so that FRONT mark is visible. Install mounting nuts (arrows) finger tight. Insert sprocket mounting bolts (arrows) on exhaust side camshaft assembly. Initially tighten to approx. 5 Nm (44 in-lb) and then back off by half a turn.
I Cylinder Head Removal and lnstallatio~ - I 4 Fit thrust spacer (A) on exhaust camshaft. 4 Install spring plate (A) to exhaust camshaft. Malte sure that (F) mark is visible. NOTE- If Fmark is no longer visible, install spring plate as shown in inset. 4 Install exhaust camshaft impulse wheel, aligning pointer (B) with top edge of cylinder head (A). Install mounting nuts (ar- rows) finger tight.
113-51 Cylinder Head Removal and Installation < Pull out exhaust camshaft splined shaft to stop. - Press down on secondary chain tensioner and remove ten- sioner lock-down tool. Preload primary chain: Tighten adjusting screw on BMW special tool 11 4 220 to specified torque. Tightening torque Primary chain tensioner preload 0.7 Nrn (6 in-lb) < Preload exhaust camshaft sprrng plate by pressing on im- pulse wheel while tightening mounting nuts (arrows) finger tight. Install BMW special tool 11 6 150 (VANOS setup bracket) to front of cylinder head timing case. Install nuts (arrows) finger tight, then tighten down uniformly until special tool is in full contact with cylinder head. CAUTION- Make sure all gasket material is removed from face of cylin- der head. Clean sealing face and keep free of oil. If any for- eign material is present on the sealing sudace, the camshait timina will be incorrect.
. .- -- Cylinder Head Removal and Installation Secure camshaft sprockets and impulse wheels: Tighten mounting screws (A) on exhaust camshaft impulse wheel to approx. 5 Nm (44 in-lb). Tighten mounting nuts (8) on exhaust and intake sprocket assemblies to approx. 5 Nm (44 in-lb). Torque down mounting screws (A) and nuts (B) to final specifications. Tightening torques sprocket assembly to camshaft initial torque 5 Nm (44 in-lb) Sprocket assembly wheel to camshaft M7 torx screws (A) 20 Nm (15 ft-lb) M6 mounting nuts (5) 10 Nm (8 ft-lb) - Remove crankshaft locking tool from transmission bell hous- ing so that crankshaft is no longer secured in TDC position. - Remove camshaft locking tools from cylinder head. 4 Turn engine over twice in direction of rotation until cylinder 1 intake and exhaust camshaft lobes (arrows) face each other. - Secure crankshaft in TDC position with BMW special tool 11 2 300. 4 Place BMW special tool set 11 3 240 over camshafts and measure clearances. CAUTION- - If the exhaust side of the tool (A) is not flush with tlie head, camshaft timing is incorrect Reset camshaft timing as de- scribed in 117 Camshaft Timing Chain. * Due to flexible sprocket design, VANOS unit tolerances and play in the VANOS splines, when the camshaft tim- ing is set correctly, the intake side of special tool 11 3 240 (6) may be up to 1 mm (0.04 in.) above the surface of the cylinder head. This is normal. Reassemble en- gine. Othe~lise, reset camshaft timing as described in 11 7 Camshaft Timing Chain. - Remove BMW special tool 11 6 150 from front of cylinder head.
Cylinder Head Removal and Installation / < Clean contact edges of cylinder head face and VANOS unit and apply a thin coat of permanently elastic Three Bond 1209 8 or equivalent to suriaces. CAUTION- Check locating dowel (A) and dowel sleeve (B) at top of cylinder head for damage or incorrect installation. Make sure all gasket material is removed from face of cylinder head. Clean sealing face and keep free of oil. If any foreign material is present on the sealing surface, the camshaft timing will be incorrect. - Install new steel gasket to front of cylinder head and install VANOS unit. NOTE - If VANOS control unit is being replaced, be sure to check and adjust camshaft timing as described in 11 7 Camshaft Tim- ing Chain. - Reinstall engine lifting eye. Tightening torque VANOS unit to cylinder head M6 nut M7 nut lo Nm (89 in-lb) 14 Nrn (10 it-lb) - Reconnect electrical harness connectors to camshaft posi- tion sensors and VANOS solenoid valves. 4 Insert and tighten down VANOS hydraulic piston set screws in splined shafts on intake and exhaust camshafts. CAUJION- Set screws have left hand tliread. Tighten counterclockwise. Tightening torque Hydraulic piston to splined shaft 10 Nm (89 in-lb) < Replace sealing caps inside VANOS unit with short needle nose pliers.
. . . [Cylinder Head Removal and Installation - .. - -1 - 4 Insert and secure VANOS sealing plugs (arrows) with new sealing O-rings. Tightening torque Sealing plug to VANOS 50 Nm (37 ft-lb) 4 Install coolant pipe fasteners at base of cylinder head and tighten fasteners (arrows). NOTE- Use new sealing O-ring on coolant pipe. - lnstall VANOS oil line banjo bolt with new seals. Attach oil line to VANOS unit. Tightening torque Oil line to VANOS unit (banjo bolt) 32 Nm (24 ft-ib) - Remove adjustable timing chain tensioner tool and reinstall chain tensioner. Tightening torque Primary chain tensioner cylinder to cylinder head 70 Nm (52 fi-ib) - Remove flywheel locking tool from transmission bell housing. Replace special tool bore sealing plug. - Remove camshaft locking tools from cylinder head 4 lnstall intake camshaft cover and cylinder head cover. 0 Check for correct seating of half-moon seals (A) in back of cylinder head cover. Use a small amount of Three Bond 1209 8 or equivalent sealant at corners (B) of half-moon cutouts. Seat gasket and seal corners in front of cylinder head at VANOS unit. Tightening torque Cylinder head cover to cylinder head (M6) 10 Nm (89 in-lb)
Cylinder Head Removal and Installation - Install exhaust manifolds using new gaskets and nuts. Coat manifold studs with copper paste prior to installing nuts. Tightening torque Exhaust maniiold to cylinder head (M7) 20 Nm (15 ft-lb) - Install electrical harness connectors for oil pressure sender and coolant temperature sensor before installing intalte man- ifold. 7 Install intake manifold: 1. Manifold mounting nuts: tighten to 15 Nm (1 1 ft-lb) 2. Fuel pipe bracltet 3. Fuel pipe bracltet 4. Vacuum pump bracltet 5. Manifold mounting bracltet 6. Tank venting valve bracltet 7. Mounting bracket to manifold bolt (M6) 8. Mounting bracket to cylinder block nut (MIO), tighten to 47 Nm (33 fi-lb) Intake manifold installation is reverse of removal, noting the following: * Use new fuel injector seals. Carefully check intake manifold gasket and replace if nec- essary. Inspect O-ring seal between mass air flow sensor and air filter housing. To facilitate reassembly, coat seal with acid- free grease. Use new fuel injector seals. Carefully check intake manifold gasket and replace if necessary. CA UTIOPI- When reattaching throttle assembly harness connector, con- nector is fully tightened when arrows on connector andplug line up. Tightening torque lntalte manifold to cylinder head (M7) 15 Nm (1 1 it-lb) ~ ~- Mounting bracket to cylinder bloclt (M10) 47 Nm (33 ft-lb) Mounting bracket to intake manifold (MI?) 10 Nm (89 in-lb)
11 3-56 I Cvlinder Head Removal and Installation - Installation of the remaining parts is reverse or removal, not- ing the following: - Refill cooling system as described in 170 Radiator and Cooling System. Change engine oil and filter as described in 020 Mainte- nance. If necessary, adjust accelerator cable. a Reconnect battery. CAUTION- To prevent damaging the engine electronic systems, installall ground wire previously removed, including the ground wires for the ionition coils. Tightening torque Coolant drain pluq to cylinder bloclc 25 Nm (1 8 ft-lb) Radiator cooling fan to coolant pump 40 Nm (30 ft-lb) - Radiator drain screw to radiator 2.5 Nm (22 in-lb) spark plug to cylinder head 25 Nm (1 8 ft-lb) CYLINDER MEAD REMOVAL AND INSTALLATION (M62 ENGINE) This procedure covers cylinder head removal and installation for the M62 V-8 engine. Procedures forthe M62 TU VANOS engine are not covered in this manual. Intake manifold, left cylinder head, and right cylinder head re- moval and installation are written as separate procedures. The intake manifold must be removed before the cylinder heads can be removed. WARNING - Due to risk of personal injuv be sure the engine is cold be- fore beginning the removal procedure. Cylinder head removal and installation requires multiple spe- cial service tools. Read the entire procedure before beginning the repair. Intake manifold, removal and installation, M62 engine - Disconnect negative (-) battery cable. CAUTION- Prior to disconnecting the batterj read the baitery discon- nection cautions in 001 General Cautions and Warnings.