Camshaft Timing Chain 117-19
7
Camshaft Timing Chain 117-19 VANOS units, removing and installing (N12, N16, N18 engine) 117 Intake camshaft VANOS solenoid valve: • Disconnect electrical connector (A). • Remove fastener (B). • Remove solenoid valve (C). If necessary, valves can be rotated in cylinder head to aid in removal and installation. Exhaust camshaft VANOS solenoid valve: • Disconnect electrical connector. • Remove fastener (A). • Remove solenoid valve (B). If necessary, valves can be rotated in cylinder head to aid in removal and installation. – Installation is the reverse of removal, making sure of the following: • Replace O-ring and coat lightly with oil. • Ensure valves are clean and free of dirt. VANOS units, removing and installing (N12, N16, N18 engine) Engine timing is adjusted when pistons are locked in 90° position. This is an updated procedure that eliminates using top dead center (TDC) when setting camshaft and crankshaft correlation. Special tools and procedures are required to remove and install VANOS units and to time camshafts. – Check camshaft timing. See Camshaft timing, adjusting in this repair group. Tightening torque VANOS solenoid to cylinder head (replace sealing O-ring) 9 Nm (7 ft-lb) WARNING — • To avoid personal injury, be sure engine is cold before beginning the procedure. CAUTION— • Disassembly, removal and assembly of camshafts or VANOS units without special tools poses the risk of damage: Valves may be bent by contact with the piston crowns. • Throughout this procedure, unless otherwise specified, crankshaft and camshafts remain locked against rotation using MINI special tools.
Transcript of Camshaft Timing Chain 117-19
Camshaft Timing Chain 117-19VANOS units, removing and installing (N12, N16, N18 engine)
117
Intake camshaft VANOS solenoid valve:
• Disconnect electrical connector (A).
• Remove fastener (B).
• Remove solenoid valve (C). If necessary, valves can be rotated in
cylinder head to aid in removal and installation.
Exhaust camshaft VANOS solenoid valve:
• Disconnect electrical connector.
• Remove fastener (A).
• Remove solenoid valve (B). If necessary, valves can be rotated in
cylinder head to aid in removal and installation.
– Installation is the reverse of removal, making sure of the following:
• Replace O-ring and coat lightly with oil.
• Ensure valves are clean and free of dirt.
VANOS units, removing and installing(N12, N16, N18 engine)
Engine timing is adjusted when pistons are locked in 90° position.
This is an updated procedure that eliminates using top dead center
(TDC) when setting camshaft and crankshaft correlation.
Special tools and procedures are required to remove and install
VANOS units and to time camshafts.
– Check camshaft timing. See Camshaft timing, adjusting in this
repair group.
Tightening torque
VANOS solenoid to cylinder head
(replace sealing O-ring)
9 Nm (7 ft-lb)
WARNING —
• To avoid personal injury, be sure engine is cold before
beginning the procedure.
CAUTION—
• Disassembly, removal and assembly of camshafts or VANOS
units without special tools poses the risk of damage: Valves
may be bent by contact with the piston crowns.
• Throughout this procedure, unless otherwise specified,
crankshaft and camshafts remain locked against rotation using
MINI special tools.
117-20 Camshaft Timing ChainVANOS units, removing and installing (N12, N16, N18 engine)
VANOS units, removing
– Switch ignition OFF and remove key.
– Disconnect negative (–) cable from battery.
– Raise vehicle and support safely.
– Remove ignition coil cover. See 020 Maintenance.
– Remove spark plugs. See 020 Maintenance.
– Remove cylinder head cover. See 113 Cylinder Head Removal
and Installation.
Using MINI special tool 11 9 590, secure crankshaft in 90° piston
position. Tool remains in place during entire repair process.
Remove fasteners (A), then remove timing chain slide rail (arrow).
CAUTION—
• Prior to disconnecting the battery, read the battery
disconnection cautions in 001 Warnings and Cautions.
WARNING —
• Make sure vehicle is stable and well supported at all times. Use
a professional automotive lift or jack stands. A floor jack is not
adequate support.
CAUTION—
• Holes used to balance engine and for aligning engine can be
mixed up. Verify engine is in 90° position by viewing piston
position through spark plug hole.
Camshaft Timing Chain 117-21VANOS units, removing and installing (N12, N16, N18 engine)
117
N12, N16 engine: Using MINI special tool 11 9 540, lock camshafts
in 90° piston position. Tighten down tool with supplied fasteners (A).
Tool remains in place during entire repair process.
N18 engine: Using MINI special tool 11 7 440, lock camshafts in
90° piston position. Secure with supplied fasteners (A). Tool remains
in place during entire repair process
Remove timing chain tensioner (A). Be prepared to catch any
dripping oil in a shop towel.
117-22 Camshaft Timing ChainVANOS units, removing and installing (N12, N16, N18 engine)
Working at right side front of cylinder head, remove timing chain
guide rail bearing bolt (arrow).
Working at front of camshafts:
• Loosen and remove exhaust and intake VANOS unit mounting
fasteners (arrows). Discard fasteners.
• Disengage timing chain from camshaft adjustment unit sprockets.
– Remove intake VANOS unit (A).
– Remove exhaust VANOS unit (B).
VANOS units can be mixed up. Check markings prior to installation.
• Intake VANOS unit marked IN.
• Exhaust VANOS unit marked EX.
Camshaft Timing Chain 117-23VANOS units, removing and installing (N12, N16, N18 engine)
117
VANOS units, installing
Use new bolt (A) to reattach exhaust VANOS unit (B). VANOS unit
may be installed in any position initially. Finger-tighten mounting
bolts for now.
– Install timing chain on exhaust VANOS unit (B).
Use new bolt (A) to reattach intake VANOS unit (B). VANOS unit
may be installed in any position initially. Finger-tighten mounting
bolts (A, C) for now.
– Install timing chain on intake VANOS unit
Install timing chain slide rail (arrow) and torque fasteners (A).
Tightening torque
Timing chain guide rail to cylinder head
M8 (replace seal) 20 Nm (14.7 ft-lb)
117-24 Camshaft Timing ChainVANOS units, removing and installing (N12, N16, N18 engine)
Install MINI special tool 11 9 340 in timing chain tensioner mounting
hole and pretension timing chain to 0.6 Nm (5.3 in-lb).
Using a torque wrench and angle protractor, torque intake VANOS
unit fastener (A).
Using a torque wrench and angle protractor, torque exhaust VANOS
unit fastener (A).
– Remove dummy tensioner and install timing chain tensioner. Use
new seal.
– Check camshaft timing. See Camshaft timing, adjusting in this
repair group.
– Reassemble engine.
Tightening torque
VANOS unit to camshaft (use new fastener)
• Stage 1
• Stage 2
20 Nm (15 ft-lb)
additional 180°
Tightening torque
VANOS unit to camshaft (use new fastener)
• Stage 1
• Stage 2
20 Nm (15 ft-lb)
additional 180°
Tightening torque
Timing chain tensioner to cylinder head
M22 x 1.5 (replace seal) 65 Nm (48 ft-lb)
CAUTION—
• Be sure to remove crankshaft and camshaft locking tools before
rotating or starting engine.
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MINI Cooper (R55, R56, R57)
Service Manual: 2007-2013Cooper, Cooper S, John Cooper Works (JSW)
including Clubman and Convertible
Price: $139.95Bentley Stock Number: BM13Publication Date: 2014.10.01ISBN: 978-0-8376-1730-5Hardcover, 8 3/8 in. x 11 in.Case quantity: 51064 pages, 1845 photos, illustrations and diagramsIncludes color MINI Cooper familiarization section
The MINI Cooper Service Manual: 2007-2013 is a comprehensive source of service information and specifications for MINI Cooper models from 2007 to 2013 (Mk II). The aim throughout this manual has been simplicity, clarity and completeness, with practical explanations, step-by-step procedures and accurate specifications. Whether you’re a professional or a do-it-yourself MINI owner, this manual will help you understand, care for and repair your car.
Features:
•ProceduresforeverythingfromchangingtheATFtoreplacingadirtycabin microfilter and resetting the CBS (condition based service) system. This manual tells you what to do and how and when to do it.
•Engineandcylinderheadservicewithvariablecamshafttiming(VANOS)setupandadjustment,includingValvetronicserviceonN12,N16, and N18 engines.
•DriveabilitytroubleshootinganddetailedrepairinformationfortheSiemensDMEEngineManagementSystems.
•Turbochargerandintercoolerinformation,includingcomponentremoval and replacement (Cooper S, JCW).
•Drivetrainmaintenance,includingtroubleshooting,adjustmentandrepair of clutch, gearshift linkage and drive axles.
•Suspensionrepairs,includingstrutandcontrolarmreplacementprocedures.
•Manualandautomatictransmissionremoval,installation, seal replacement and external service.
•Systemrepairinformationforantilockbrakes(ABS),automatic stabilitycontrol(ASC)anddynamicstabilitycontrol(DSC).
•Heatingandairconditioningrepair(IHKS/IHKA),including component replacement.
•Bodyadjustmentsandrepairsforsunroofandconvertible,includingresetting of the rollover protection system.
•Electricalsystemservice,includinganeasytouseelectrical component section with detailed illustrations and photos.
•Comprehensivewiringschematics,includingfusesandgrounds.•MINIOBDIIdiagnostictroublecodes,SAE-definedandOBDII
P-Codes,aswellasbasicscantoolinformationandOBDII DiagnosticTroubleCodes(DTCs).
•MINIfactorytolerances,wearlimits,adjustments,andtighteningtorques.
Models & engines covered:
Cooper: 1.6 liter normally aspirated engine (engine codes N12, N16)Cooper S: 1.6 liter supercharged engine (engine codes N14, N18)
Transmissions covered:
Manual: 6-speed Getrag (GS6-55BG for Cooper, GS6-53BG for Cooper S)
Automatic: 6-speed with Agitronic, Aisin (GA6F21WA)
Step-by-step instructions for resetting CBS service items.020 Maintenance
High pressure fuel system service on turbo engine, including replacing HP fuel pump.160 Fuel Tank and Fuel Pump
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bentley_bm13_new.product.announcement.pdf
Detailed engine service, including VANOS camshaft timing adjustment.117 Camshaft Timing Chain
