Engine Rebuild

Complete engine disassembly, machine work preparation, and rebuild for the 2009 Aston Martin DB9 6.0L V12, including removal from vehicle, teardown to short block, inspection, reassembly with new bearings/seals/gaskets, and reinstallation.

Warnings

Tools required

Parts

• Complete engine gasket set × 1 — Use OEM Aston Martin specification
• Cylinder head gaskets (pair) × 2 — Use OEM Aston Martin specification
• Main bearing set (standard or oversized as measured) × 1 — Use OEM specification
• Rod bearing set (standard or oversized as measured) × 1 — Use OEM specification
• Piston ring sets × 12 — Use OEM specification
• Front crankshaft seal × 1 — Use OEM specification
• Rear crankshaft seal × 1 — Use OEM specification
• Valve stem seals × 48 — Use OEM specification
• Timing chain kit (chains, guides, tensioners) × 1 — Use OEM Aston Martin specification
• Oil pump (if wear exceeds specification) × 1 — Use OEM specification
• Water pump × 1 — Use OEM specification
• Thermostat × 1 — Use OEM specification
• Oil filter × 1 — Use OEM specification
• Spark plugs × 12 — NGK or OEM equivalent
• Coolant hoses (as needed during inspection) × 1 — Inspect and replace as necessary
• Engine oil drain plug crush washer × 1 — Use OEM specification
• Valve cover gaskets and grommets × 2 — Use OEM specification
• Intake manifold gaskets × 1 — Use OEM specification
• Exhaust manifold gaskets × 2 — Use OEM specification
• ARP thread sealer or equivalent × 1 — For TTY bolt threads
• Anti-seize compound × 1 — Nickel-based high-temp

Fluids

• 5W-30 engine oil — 10.5 qt
• OAT 50/50 coolant — 10.5 qt

Preparation

1. Park vehicle on level surface and engage parking brake. Place wheel chocks at all four wheels.
2. Disconnect battery negative terminal and isolate cable. Wait 15 minutes for airbag system discharge.
3. Drain engine coolant completely into appropriate container by opening radiator drain and removing lower radiator hose.
4. Drain engine oil completely and remove oil filter.
5. Remove engine cover panels and undertray to access engine bay.
6. Relieve fuel system pressure by removing fuel pump fuse and cranking engine until it will not start.
7. Label and photograph all electrical connectors, vacuum lines, and hose routing before disconnection.
8. Prepare clean workspace for engine stand with adequate lighting and tool access.
9. Have all machine shop measurements forms ready for documentation during disassembly.

Procedure

1. 1

   Remove Engine from Vehicle
   Disconnect all electrical connections from engine including alternator, starter, all sensors, and engine harness connectors. Label each connection. Disconnect throttle bodies, fuel rails (with fuel system depressurized), coolant hoses, heater hoses, transmission cooler lines, and vacuum lines. Remove air intake system completely. Disconnect exhaust system at manifold flanges. Remove accessory drive belts. Support the torque tube with a jack. Remove engine mount bolts from both sides. Disconnect the engine from the torque tube coupling per Aston Martin procedure. Attach engine hoist to factory lifting eyes per OEM workshop manual. Verify all connections are clear. Carefully lift engine clear per OEM removal procedure, noting the DB9 uses a rear transaxle connected via torque tube rather than a conventional bellhousing-mounted transmission. Guide engine clear of vehicle and lower onto engine stand. Secure engine to stand using appropriate mounting points. Note: Disconnect the driveshaft/torque tube coupling at the engine flywheel/flexplate per OEM procedure (DB9 uses a rear transaxle, not engine-mounted bellhousing). Note: Attach engine hoist to the factory-specified engine lifting brackets/eyes per Aston Martin workshop manual. Note: Carefully disconnect the engine from the torque tube/driveshaft assembly that connects to the rear-mounted transaxle, then lift engine forward and upward clear of the subframe. Note: Attach engine hoist to the factory lifting eyes/brackets provided on the engine per Aston Martin workshop manual. Note: Disconnect the torque tube/driveshaft coupling at the engine flywheel/flexplate as applicable per factory procedure. Note: Carefully lift engine upward per the factory procedure, having first separated the engine from the torque tube/transaxle driveshaft assembly.
2. 2

   Remove External Components and Accessories
   With engine on stand, remove alternator, power steering pump, AC compressor (if attached), starter motor, coolant housing, thermostat housing, and water pump. Remove all remaining sensors including cam position sensors, crank position sensor, knock sensors, oil pressure sender, and coolant temperature sensors. Remove the 12 individual ignition coils (coil-on-plug) and spark plugs from all 12 cylinders. Remove throttle bodies and fuel rails as a complete assembly. Remove all remaining coolant hoses and heater hose connections. Tag and store all removed components systematically.
3. 3

   Remove Intake Manifold
   Remove intake manifold mounting bolts working from outside toward center. The V12 intake manifold is a complex aluminum casting with integrated plenum. Carefully lift manifold assembly away from cylinder heads, being cautious of any remaining vacuum connections or PCV routing. Inspect manifold gaskets and mating surfaces. Set manifold aside in protected area.
   Torque spec

   Intake Manifold Bolt10 Nm (7 lb-ft)
4. 4

   Remove Exhaust Manifolds
   Working on each bank, remove exhaust manifold mounting nuts. The DB9 uses stainless steel exhaust manifolds (verify construction type against Aston Martin documentation). Work from the center (hottest section) outward to minimize warping during removal. Once all fasteners are removed, carefully separate manifolds from cylinder heads. Inspect studs for damage. Set manifolds aside and inspect for cracks.
   Torque spec

   Exhaust Manifold Nuts30 Nm (22 lb-ft)
5. 5

   Remove Valve Covers
   Remove valve cover fasteners from both cylinder heads. The DB9 uses cam cover assemblies with integrated spark plug tube seals. Carefully lift covers straight up to avoid damaging seals. Inspect internal baffling and PCV components. Verify valve train condition visually before proceeding. Set covers aside with gaskets removed.
   Torque spec

   Valve Cover Bolts10 Nm (7 lb-ft)
6. 6

   Remove Timing Cover and Set Timing Marks
   Rotate engine to TDC cylinder 1 using crankshaft pulley bolt. Install crankshaft locking tool to secure position. Mark all timing chain positions relative to camshaft sprockets using paint marker. Photograph timing chain routing and tensioner positions. Remove crankshaft pulley using harmonic balancer puller. Remove timing cover bolts in reverse of tightening sequence. Carefully separate timing cover from block, being cautious of locating dowels. Inspect timing cover seal and oil pump drive.
   Torque spec

   Crankshaft Pulley Bolt180 Nm (133 lb-ft)

   Timing Cover Bolts - 8mm20 Nm (15 lb-ft)
7. 7

   Remove Timing Chain Components
   Release timing chain tensioners by removing tensioner bolts. Verify timing chain tensioner type (hydraulic with locking mechanism assumed) against OEM documentation before removal and reinstallation. Remove timing chain guides by removing guide bolts. Carefully remove timing chains from camshaft sprockets and crankshaft sprocket. Remove camshaft sprockets using camshaft holding tool to prevent rotation. Remove crankshaft timing sprocket. Inspect all components for wear, paying special attention to chain stretch, guide wear patterns, and tensioner condition. Document chain wear measurements for machine shop. Note: Piston ring compressor sized to the actual DB9 V12 bore diameter (verify bore dimension from Aston Martin documentation)
   Torque spec

   Timing Chain Tensioner Bolt11 Nm (8 lb-ft)

   Timing Chain Guide Bolts10 Nm (7 lb-ft)
8. 8

   Remove Camshafts
   Working on one cylinder head at a time, loosen camshaft bearing cap bolts in reverse sequence (outward from center) in multiple passes. The DB9 has 4 camshafts total (2 per head). Remove bearing caps and label them by position and head. Carefully lift camshafts out, supporting evenly to avoid binding. Inspect camshaft lobes for wear, scoring, or pitting. Measure lobe lift and journal diameters. Record all measurements. Store camshafts in protected area with journals wrapped.
   Torque spec

   Camshaft Bearing Cap Bolts10 Nm (7 lb-ft)
9. 9

   Remove Cylinder Heads
   Remove cylinder head bolts in reverse of tightening sequence, loosening in multiple passes. The DB9 uses TTY head bolts that must be discarded. Mark bolt locations if different lengths are used. Once all bolts are removed, carefully break head seal using appropriate pry points (never between mating surfaces). Lift heads straight up and off locating dowels. Place heads on clean, padded surface with combustion chambers facing up. Cover chambers to prevent debris entry. Inspect head gaskets for failure patterns. Measure cylinder head flatness with straight edge and feeler gauge at multiple points. Document measurements for machine shop.
   Torque spec

   Cylinder Head Bolts65 Nm (48 lb-ft)
10. 10

    Remove Oil Pan and Oil Pump
    Remove oil pan bolts in sequence. Carefully separate oil pan from block, being cautious of any remaining RTV sealant. Remove oil pump pickup tube mounting bolts and remove pickup tube. Remove oil pump mounting bolts and remove oil pump assembly from front of block. Inspect pump gears for wear, measure gear clearances, and check pressure relief valve operation. Clean oil pan thoroughly and inspect for cracks or damage.
    Torque spec

    Oil Pan Bolt12 Nm (9 lb-ft)

    Oil Pump Pickup Tube10 Nm (7 lb-ft)

    Oil Pump Bolts12 Nm (9 lb-ft)
11. 11

    Remove Pistons and Connecting Rods
    Rotate engine so crankshaft journals are accessible. Mark each connecting rod cap and rod with cylinder number and orientation using metal stamps or permanent marker. Remove connecting rod bolts (these are TTY and must be replaced). Carefully remove rod caps, keeping matched with their rods. Push each piston/rod assembly up and out through the top of the cylinder bore. If ridge at top of bore prevents removal, use ridge reamer to carefully remove ridge first. Place each piston/rod assembly in labeled container with its bearings. Inspect rod bearings for wear patterns, scoring, or copper showing through. Measure bearing clearances. Inspect pistons for scoring, ring land damage, and skirt scuffing. Measure piston-to-bore clearance at multiple points. Note: Piston ring compressor sized to the OEM bore diameter (verify exact bore dimension against Aston Martin specification before selecting)
    Torque spec

    Connecting Rod Bolts45 Nm (33 lb-ft)
12. 12

    Remove Crankshaft and Main Bearings
    Mark all main bearing caps with position and orientation using stamps. Remove main bearing cap bolts in sequence (these are TTY bolts and must be replaced). Carefully remove main bearing caps, keeping them in order. Lift crankshaft straight up and out of block, using care due to weight. Place crankshaft on padded V-blocks or hangers. Remove main bearings from caps and block, labeling each by position. Inspect all main and rod journals for scoring, out-of-round, taper, and wear. Measure all journal diameters with micrometer at multiple points and record. Check crankshaft runout. Inspect thrust bearing surfaces. Document all measurements for machine shop to determine grinding requirements.
    Torque spec

    Main Bearing Cap Bolts75 Nm (55 lb-ft)
13. 13

    Complete Block Inspection and Cleaning
    Remove all remaining plugs, galley plugs, and oil jets from block. Measure cylinder bore diameter at top, middle, and bottom in two orientations to determine taper and out-of-round. Check cylinder wall condition for scoring or scuffing. Measure deck height and check for warpage using straight edge and feeler gauge. Inspect block for cracks using visual and dye penetrant methods, paying attention to main bearing saddles, cylinder bores, and webbing. Clean block thoroughly with hot tank or spray washer. Chase all threaded holes with thread chaser. Blow out all oil galleries with compressed air. Final clean with brake cleaner and lint-free rags. Document all measurements and provide to machine shop with specifications for bore size, honing requirements, deck surfacing, and align honing if needed.
14. 14

    Machine Shop Work and Parts Acquisition
    Coordinate with machine shop for required work: cylinder boring/honing to next oversize if needed, deck surface grinding if warpage exceeds specification (typically 0.002 inch maximum), crankshaft grinding if journals are out of specification, connecting rod reconditioning, cylinder head valve job including seat cutting and valve guide inspection/replacement, head surface grinding if warpage exceeds specification. Order all bearings to match final machined dimensions (standard or oversize), new pistons if overbore is required (pistons must match new bore size), piston rings sized to final bore dimension, and all gaskets and seals. Verify all TTY bolts are included in parts order. This step represents significant time for machine work but is performed by external shop.
15. 15

    Clean and Prepare Components for Assembly
    Once all machined components are returned from machine shop, perform final cleaning. Wash block again and blow out all oil galleries. Clean crankshaft journals with solvent and dry with lint-free cloth. Clean cylinder bores with detergent and water, then dry and apply light coat of assembly lube. Clean connecting rods thoroughly. Inspect all new components including bearings, rings, gaskets, and seals. Organize all assembly components by installation sequence. Pre-fit all new gaskets to verify correct parts. Prepare RTV sealant and assembly lube. Set up torque wrenches and verify calibration.
16. 16

    Install Main Bearings and Crankshaft
    Install main bearing shells in block and bearing caps, ensuring bearing tabs are properly seated in notches. Do not interchange bearings between positions. Lubricate all bearing surfaces with assembly lube or engine oil. Carefully lower crankshaft into block, aligning with all bearing positions. Lubricate thrust bearing surfaces. Install main bearing caps in correct positions and orientations. Install new main cap bolts with light oil on threads. Torque main cap bolts in sequence in multiple steps per OEM specification. Verify exact torque values and angle requirements from Aston Martin workshop documentation before assembly. After torquing, verify crankshaft rotates freely by hand. Check crankshaft endplay with dial indicator (specification typically 0.05-0.25mm). If endplay is incorrect, verify thrust bearing installation. Note: Torque main cap bolts in sequence in multiple steps per OEM specification, following exact initial torque, final torque, and angle values from Aston Martin workshop manual. Note: Torque main cap bolts in sequence in multiple steps per OEM specification (verify exact initial torque, final torque, and angle values from Aston Martin workshop manual).
    Torque spec

    Main Bearing Cap Bolts75 Nm (55 lb-ft)
17. 17

    Install Piston Rings
    For each piston, install piston rings using ring expander tool. Install oil control ring first (expander and rails), then second compression ring with marking facing up, then top compression ring with marking facing up. Verify ring end gaps are within specification (check each ring in bore before installation). Stagger ring end gaps 120 degrees apart. Lubricate all rings with assembly lube. Verify rings rotate freely in their grooves.
18. 18

    Install Pistons and Connecting Rods
    Install rod bearing shells in connecting rods and caps, ensuring correct position and tab engagement. Lubricate cylinder bores with assembly lube. For each piston/rod assembly, verify piston orientation marking faces forward. Install piston ring compressor on piston, compressing all rings fully. Lubricate outside of ring compressor. Guide rod down into cylinder bore while gently tapping piston crown with wood or plastic handle, compressing rings as piston enters bore. Guide rod onto crankshaft journal, being careful not to damage journal. Install rod cap in correct orientation. Install new rod bolts (TTY) with light oil on threads. Torque rod bolts per OEM specification, following the exact initial torque and angle values from the Aston Martin workshop manual. Verify rod side clearance is within specification. Repeat for all 12 cylinders, ensuring each piston is installed in its original cylinder if using original pistons. Note: Torque rod bolts to OEM specification, then apply angle torque per OEM specification. Verify exact values from Aston Martin workshop documentation before assembly. Note: Torque rod bolts to specification per OEM documentation, then apply the specified angle torque (verify exact torque and angle values from Aston Martin workshop manual).
    Torque spec

    Connecting Rod Bolts45 Nm (33 lb-ft)
19. 19

    Install Oil Pump and Oil Pan
    Install new front crankshaft seal in timing cover or front of block using seal driver. Lubricate seal lip. Install oil pump with new gasket or RTV as specified. Torque oil pump bolts to specification. Install oil pump pickup tube with new O-ring or gasket. Torque pickup tube bolts to specification. Verify pickup tube-to-pan floor clearance (typically 5-10mm). Clean oil pan mating surface and block surface thoroughly with brake cleaner. Apply RTV sealant to oil pan mating surface in continuous bead, circling all bolt holes. Install oil pan within RTV working time (typically 10 minutes). Install oil pan bolts and torque in sequence from center outward to specification.
    Torque spec

    Oil Pump Bolts12 Nm (9 lb-ft)

    Oil Pump Pickup Tube10 Nm (7 lb-ft)

    Oil Pan Bolt12 Nm (9 lb-ft)
20. 20

    Install Cylinder Heads
    Verify block deck and head mating surfaces are perfectly clean and dry. Inspect new head gaskets for orientation markings and install on block, aligning with dowel pins. Do not use any sealant on head gaskets unless specifically required by OEM. Carefully lower cylinder heads onto block, aligning with dowels. Install new cylinder head bolts (TTY) with light oil on threads and underside of bolt heads. Hand-tighten all bolts first. Torque head bolts in OEM sequence in multiple steps per Aston Martin specification, following the exact torque passes and angle stages from the workshop manual. Follow exact sequence and angle requirements from OEM documentation. Note: Torque head bolts in OEM sequence in multiple steps per Aston Martin specification, followed by the specified angle-torque stages. Verify all torque values, passes, and angle requirements from OEM documentation before assembly. Note: Torque head bolts in OEM sequence in multiple steps per factory specification, then apply the specified angle torque stages (verify exact torque values and angle sequence from Aston Martin workshop manual).
    Torque spec

    Cylinder Head Bolts65 Nm (48 lb-ft)
21. 21

    Install Camshafts and Valve Train
    Lubricate all camshaft journals and lobes with assembly lube. Lubricate valve lifter bores and install lifters. Position camshafts in cylinder heads, ensuring correct intake/exhaust identification. Install camshaft bearing caps in correct positions (they are numbered and must go in original locations). Install camshaft cap bolts and torque in sequence from center outward in multiple passes per OEM specification. Verify exact torque values from Aston Martin workshop documentation. Verify camshafts rotate smoothly. Check cam endplay (typically 0.05-0.15mm). Install cam position sensors. Note: Install camshaft cap bolts and torque in sequence from center outward in multiple passes per OEM specification from the Aston Martin workshop manual. Note: Install camshaft cap bolts and torque in sequence from center outward in multiple passes per OEM specification (verify exact torque values from Aston Martin workshop manual).
    Torque spec

    Camshaft Bearing Cap Bolts10 Nm (7 lb-ft)
22. 22

    Install Timing Components
    Install crankshaft timing sprocket, ensuring keyway alignment. Install camshaft sprockets on all four camshafts using camshaft holding tool, hand-tight initially. Rotate crankshaft to TDC cylinder 1 position and install crankshaft locking tool. Install timing chains over crankshaft and camshaft sprockets following OEM routing diagram exactly. Verify all timing marks align per OEM specification. Install timing chain guides and torque guide bolts to specification. Compress timing chain tensioners using tensioner compression tool and install tensioner locking pins. Install tensioners and torque tensioner bolts to specification. Remove tensioner locking pins to activate tensioners. Remove crankshaft locking tool and rotate engine two complete revolutions by hand. Reinstall locking tool and verify all timing marks still align correctly. If marks do not align, disassemble and reinstall timing components.
    Torque spec

    Timing Chain Guide Bolts10 Nm (7 lb-ft)

    Timing Chain Tensioner Bolt11 Nm (8 lb-ft)
23. 23

    Install Timing Cover and Front Accessories
    Clean timing cover and block mating surfaces thoroughly. Install new timing cover gasket or apply RTV sealant per OEM specification. Position timing cover on block, aligning over crankshaft snout and locating dowels. Install timing cover bolts and torque in sequence to specification. Install crankshaft pulley/harmonic balancer on crankshaft, ensuring keyway alignment. Apply light oil to pulley bolt threads. Install pulley bolt and torque to OEM specification, using appropriate holding tool or impact method per OEM procedure. Verify exact torque (and any angle requirement) from Aston Martin workshop documentation. Install water pump with new gasket and torque bolts to specification. Note: Install pulley bolt and torque to OEM specification, using appropriate holding tool or impact method per Aston Martin procedure. Note: Install pulley bolt and torque to specification per OEM procedure, using appropriate holding tool (verify exact torque and any angle requirement from Aston Martin workshop manual).
    Torque spec

    Timing Cover Bolts - 8mm20 Nm (15 lb-ft)

    Crankshaft Pulley Bolt180 Nm (133 lb-ft)
24. 24

    Install Exhaust and Intake Manifolds
    Install new exhaust manifold gaskets on cylinder heads. Apply anti-seize compound to exhaust manifold studs. Position exhaust manifolds and install mounting nuts. Torque exhaust manifold nuts to specification working from center outward (hot to cold). Install new intake manifold gaskets. Position intake manifold on cylinder heads, ensuring all port alignments are correct. Install intake manifold bolts and torque to specification working from center outward in multiple passes.
    Torque spec

    Exhaust Manifold Nuts30 Nm (22 lb-ft)

    Intake Manifold Bolt10 Nm (7 lb-ft)
25. 25

    Install Valve Covers and External Components
    Install new valve cover gaskets and spark plug tube seals. Position valve covers on cylinder heads and install mounting bolts. Torque valve cover bolts in sequence to specification. Install new spark plugs with anti-seize on threads, torque per plug specification. Install coil packs. Install all sensors including cam position, crank position, knock sensors, oil pressure sender, and coolant temperature sensors. Install throttle bodies and fuel rails with new seals/gaskets. Install coolant housings, thermostat with new gasket, and all coolant hoses. Install alternator, power steering pump, AC compressor, and starter motor. Install accessory drive belts with proper tension.
    Torque spec

    Valve Cover Bolts10 Nm (7 lb-ft)
26. 26

    Prepare Engine for Installation
    Perform final inspection of all external connections and fasteners. Install new oil filter. Do not fill with oil yet (will be done after installation). Verify all sensors are connected. Verify all accessories are properly mounted. Verify all hose connections are secure. Remove engine from stand and position on engine hoist using factory lifting points.
27. 27

    Install Engine in Vehicle
    Carefully guide engine into engine bay, aligning with transmission. Install transmission-to-engine bolts or torque converter bolts. Lower engine onto engine mounts and install engine mount bolts. Remove engine hoist. Reconnect all electrical connections to engine, referencing labels and photos from removal. Reconnect throttle bodies, fuel rails, coolant hoses, heater hoses, transmission cooler lines, and vacuum lines. Reconnect exhaust system at manifold flanges with new gaskets. Reinstall air intake system completely. Install undertray and engine cover panels.
28. 28

    Fill Fluids and Initial Start Preparation
    Fill engine with OEM-specified engine oil grade and quantity per Aston Martin documentation (verify exact capacity and viscosity before filling). Install oil drain plug with new crush washer and torque to specification. Fill cooling system with the OEM-specified coolant type and quantity (50/50 mixture) per the Aston Martin workshop manual. Bleed cooling system per OEM procedure. Reconnect battery negative terminal. Perform pre-start checks: verify all connections are secure, verify no tools or parts are left in engine bay, verify all fluids are at proper levels. Prime oil system per OEM procedure (with ignition/fuel disabled) until oil pressure is achieved, verifying method and acceptable cranking duration against Aston Martin documentation. Reinstall fuel pump fuse and spark plugs. Note: Fill cooling system with OEM-specified coolant type and quantity per Aston Martin documentation (verify exact capacity before filling). Note: Fill engine with the OEM-specified engine oil grade and quantity per the Aston Martin owner/workshop manual. Note: Fill engine with the Aston Martin-specified engine oil grade and capacity (verify exact viscosity and quantity from Aston Martin documentation). Note: Fill cooling system with the Aston Martin-specified coolant type and capacity (verify exact coolant specification and quantity from Aston Martin documentation).
    Torque spec

    Oil Drain Plug25 Nm (18 lb-ft)

Reassembly

1. Reassembly is covered in the installation steps above, following exact reverse of disassembly with critical attention to torque specifications and sequences.
2. All TTY (torque-to-yield) bolts including cylinder head bolts, main bearing cap bolts, connecting rod bolts, and flywheel bolts must be replaced with new components and must never be reused.
3. All timing marks must align exactly per OEM specification after rotating engine two full revolutions - verify before closing timing cover.
4. All bearing clearances should have been verified during assembly using Plastigage or micrometer measurements before final torquing.
5. RTV sealant must be applied correctly and components assembled within working time to ensure proper sealing.

Verification

• Perform initial engine start and monitor closely for unusual noises, oil pressure (should reach normal range within 5-10 seconds), coolant leaks, oil leaks, and exhaust leaks.
• Allow engine to warm to operating temperature while monitoring coolant temperature gauge. Verify thermostat opens and cooling fans cycle properly.
• Check for any fluid leaks at all gasket surfaces, particularly oil pan, timing cover, valve covers, and head gaskets.
• After initial warm-up, shut down engine and allow to cool. Recheck all fluid levels and top off as necessary. Recheck for leaks.
• Perform test drive to verify proper engine operation under load. Monitor for any unusual noises, vibrations, or performance issues.
• After 500 miles, perform first oil change and filter replacement. Inspect oil for metal particles or coolant contamination.
• After 1000 miles, recheck valve cover bolt torque and other critical fasteners. Some settling may occur.
• Monitor oil consumption and coolant levels closely for first 3000 miles during break-in period. Follow OEM break-in procedure for engine speed and load limitations.

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