
ItemPart NumberDescription1-ValveBecause the damper is locat ed in an environment where t he normal operat ing temperat ure can reach approximat ely 140°C (284°F),coupled wit h t he fact that t he damper also generates it s own heat, it is neces sary for it t o be oil cooled. A s eparat e oil circuitroutes oil from the engine's oil cooler t o a valve in t he engine block, which opens at approximat ely 2 bar. The oil t hen flows t o 3jet s, located on t he cranks haft vibrat ion damper cooling pipe, which then directs the oil t o the lower s ect ion of t he damper.
The oil flows t hrough the jets at approximately 12 lit ers per minute.
At high t emperat ures , oil cooling reduces t he damper t emperat ure by approximat ely 7°C (45°F).
Bedplate

ItemPart NumberDescription1-O-ring2-Oil cooler3-Oil filt er housingThe oil filter and cooler ass embly is located at the front of the LH s ide of t he cylinder block. The oil filt er housing cont ains aseparat e single oil filt er element . The oil filter supplies clean oil t o t he oil cooler, which is connect ed t o t he coolant s yst em, and isfurther dist ribut ed to the various engine sys tems (For more informat ion refer t o t he lubrication s ect ion).
Oil Pump Assembly

ItemPart NumberDescription1-Oil level/t emperat ure sensorThe engine oil drain plug is locat ed on t he exhaus t s ide of the engine, t owards t he bot t om of the oil pan.
Oil Level Gage

ItemPart NumberDescription1-Oil level gage2-Oil level gage t ube3-Bolt4-O-ring s ealThe oil level gauge locat es along t he int ake s ide of t he engine and is s upport ed in a t ube ins t alled in t he oil pan. A bolt s ecurelyat t aches the t ube to t he engine oil cooler via a bracket . Two holes in t he end of t he gauge indicate the minimum and maximum oillevels . The difference between the dips t ick markings , minimum and maximum, corresponds t o 0.8 lit res .
Starter Motor

6-Hydraulic chain t ens ioner7-Cams haft chain gear8-Cams haft chain lubricat ion noz zle9-Chain guideThe t iming chain for t he cams haft s is locat ed in a hous ing at t he rear of t he engine.
ItemPart NumberDescription1-Dowel (us ed t o align gas ket and t iming case)2-Gas ket3-Front t iming cas e4-Seal5-O -ring
ItemPart NumberDescription

To ensure t hat the air is releas ed from t he oil sys tem, a valve is locat ed in t he oil pump on t he pres sure s ide. During t he build-upof press ure, air is routed out into the crankcas e. This cont inues unt il t he valve clos es at approximat ely 0.2 bar.
Oil Filter and Cooler Assembly
The majorit y of oil is routed t o the oil filter, which is a s eparat e s ingle filt er element locat ed in t he housing. The over-flow valvefor t he blocked filt er is in t he cover. The valve opens at approximat ely 2 bar.
There is a valve at t he bot t om of t he hous ing. The t ask of t he valve is t o drain t he housing of oil when t he oil filter is removed.W hen the oil filter is ins t alled, the valve is closed. A spring loaded ring at the bott om of t he filt er hous ing is affect ed by t heact ual filt er. The ring is , in t urn, mechanically connected t o the valve.
W hen the filter is removed, the s pring lifts the ring, which, in turn, opens t he valve whereupon t he oil drains to t he oil pan.
ItemPart NumberDescription1-Oil pan2-Oil pump3-Oil press ure pipe4-Oil level/t emperat ure s ensor5-Oil cooler6-Oil level gage7-Oil filt er cover8-Vibrat ion damper pipe wit h jet s9-Pis t on cooling jet (6 off)10-Supply line wit h st rainer11-Bleed valveThe oil pas s es a non-ret urn valve before it reaches t he oil cooler/filt er housing. The non-return valve ens ures that t he oil filt erhous ing is not drained of oil when the engine is s wit ched off. The valve opens at approximat ely 0.2 bar.
The oil first pas ses t he oil cooler, a plat e oil cooler. The chamber for oil and coolant is split alternat ely between the plat es. Thereare 20 plat es used in tot al. The first 16 plat es are us ed for oil, which is routed through the engine's normal lubricat ion circuit , i.e.the oil is routed t o t he oil filt er.
The 4 las t plat es are us ed t o provide a proport ion of the oil with ext ra cooling before it is rout ed onwards to cool t he vibrat iondamper. The circuit is calibrat ed t o achieve correct flow.
There is a by-pas s valve parallel t o t he oil cooler. The valve ens ures an oil flow to t he oil filt er even if the oil cooler is blocked.The valve opens at approximat ely 2 bar.
Intake Valve (Piston Cooling)
The oil is also rout ed to the duct for oil cooling, which is parallel to t he ducts for main bearings and connect ing rod bearings .
The oil first pas ses a valve that opens/clos es at approximately 2.0 bar. Thereaft er, t he oil is rout ed to the jet s for pis t on cooling:
If the valve has t oo high an opening pres s ure, t his means that t he oil flow t o t he pis t ons reduces , which can caus e enginedamageIf the valve has t oo low an opening press ure, this produces an increas ed flow t o piston cooling. It can, in certain s ituat ions(before the relief valve is opened) result in t he engine's oil pres s ure being t oo low causing engine damage
The jets direct the oil t owards the underneath of t he pis tons. Each cylinder has it s own jet .

Publi s hed: 11-May-2011
Engine - I6 3.2L Petrol - Engine
Diagnosi s and Tes ti ng
Principles of Operation
For a detail ed descripti on of the engine sys tem, refer t o t he rel evant Des cript ion and Operat ion s ecti on in the works hopmanual.REFER to: Engine (303-01A Engine - I6 3.2L Pet rol , Des cri pti on and Operati on).
Inspection and Verification
1. Verify t he cus t omer concern.1.
2. Vis ually ins pect for obvious s igns of mechani cal or electrical damage.2.
Visual Inspection
MechanicalElectrical
Coolant leaksOi l leaksLeaks in t he fuel s yst emVis i bl y damaged or worn partsLoose or mis s ing fixings
Fus esLoos e or corroded el ect ri cal connectorsHarnes sesSens ors
3. If an obvious cause for an obs erved or report ed concern is found, correct t he caus e (if pos s ible) beforeproceeding t o t he next s t ep3.
4. If t he caus e is not vis ually evi dent , verify t he sympt om and refer t o t he Sympt om Chart.4.
Symptom Chart
• NOTE: If an engi ne is sus pect , when the vehicl e remai ns under t he Manufact urers warranty refer t o t he W arranty Pol icyand Procedure manual (s ect ion B1.2), or determine if any pri or approval programme is in operat ion, pri or t o t he i ns t allat ionof a new engine.
• NOTE: Due t o t he poss ibi li ty of l oos e carbon, that has become trapped bet ween t he val ve face and s eat, effect ing thepres s ure readi ngs , when carryi ng out a compres s ion t est and s ome cyli nders are found t o have low press ures , i ns t all thes park plugs , road t est the vehicle and re-t es t the s us pect cylinders . If the correct pres sures are rest ored, no furt her acti onis required.
SymptomAction
All engine relat ed is s uesCheck ECM for Di agnos t ic Trouble Codes (DTCs) and refer t o DTC Index.REFER t o: El ect ronic Engi ne Cont rol s (303-14A El ect roni c Engi ne Cont rol s - I6 3.2LPet rol, Di agnos is and Tes ti ng).
Di fficul t t o s tart hot andcoldCarry out general engi ne checks :- Compress ion tes t. Refer t o component t es ts i n t his s ect ion.- Val ve cl earances .REFER t o: Val ve Clearance Check (303-01A Engine - I6 3.2L Pet rol , GeneralProcedures ).- Spark pl ug condi ti on and col or
Poor idleEns ure t he air i ntake s yst em is free from leaksCarry out general engi ne checks :- Compress ion tes t. Refer t o component t es ts i n t his s ect ion.- Val ve cl earances .REFER t o: Val ve Clearance Check (303-01A Engine - I6 3.2L Pet rol , GeneralProcedures ).- Spark pl ug condi ti on and col orCheck for collaps ed catalyt ic converter/blocked exhaus t s ys t emCheck long and s hort t erm fuel t rim datal ogger s ignals- Readings up t o 10%: may be cons idered as acceptable if t he readings are equalbank t o bank- Pos it ive readi ngs of bet ween 10-20%: check for air leaks i n air i nt ake s ys t em- Negati ve readings of between 10-20%: check for over fuell ing e.g. leaki ngi njectors , high fuel pres sure- Readings above 20%: check for DTCs and refer t o DTC Index.REFER t o: El ect ronic Engi ne Cont rol s (303-14A El ect roni c Engi ne Cont rol s - I6 3.2LPet rol, Di agnos is and Tes ti ng).Carry out a vacuum gauge check. Refer to component t es ts i n t his s ecti on.
Insuffi ci entpower/Ins ufficientcompres s ion
Ens ure t he air i ntake s yst em is free from leaksCarry out general engi ne checks :- Compress ion tes t. Refer t o component t es ts i n t his s ect ion.- Val ve cl earances .REFER t o: Val ve Clearance Check (303-01A Engine - I6 3.2L Pet rol , GeneralProcedures ).- Spark pl ug condi ti on and col orCheck for collaps ed catalyt ic converter/blocked exhaus t s ys t emCheck long and s hort t erm fuel t rim datal ogger s ignals- Readings up t o 10%: may be cons idered as acceptable if t he readings are equalbank t o bank

SymptomAction
- Pos it ive readi ngs of bet ween 10-20%: check for air leaks i n air i nt ake s ys t em- Negati ve readings of between 10-20%: check for over fuell ing e.g. leaki ngi njectors , high fuel pres sure- Readings above 20%: check for DTCs and refer t o DTC Index.REFER t o: El ect ronic Engi ne Cont rol s (303-14A El ect roni c Engi ne Cont rol s - I6 3.2LPet rol, Di agnos is and Tes ti ng).Carry out a vacuum gauge check. Refer to component t es ts i n t his s ecti on.
Oi l cons umpti onCarry out oil l eak check fol lowed by an oi l cons umpt ion tes t. Refer t o t he componentt est s i n t hi s s ect ionIf oil cons umpt ion i s exces si ve:Check the integrit y of the engine breat her sys t emCarry out general engi ne checks :- Compress ion tes t. Refer t o component t es ts i n t his s ect ion.- Val ve cl earances .REFER t o: Val ve Clearance Check (303-01A Engine - I6 3.2L Pet rol , GeneralProcedures ).- Spark pl ug condi ti on and col or
Nois eRefer t o t he Speci al Servi ce Mess ages on t he Electroni c Product Q ual it y Report (EPQR)s ys tem for s ound fi les . If t he s ympt om does NOT compare t o any of the s ound files ,contact Deal er Technical Support (DTS).
Component Tests
Engine Oil Leaks
• NOTE: Before ins t al li ng new gasket s or oil s eal s, make sure t hat t he faul t is cl early es t abl is hed.
If the oi l l eak cannot be ident ifi ed clearl y by a vi sual ins pect ion, carry out an Ult raviolet t est :
Fluorescent Oil Additive Method
1. Clean t he engi ne wit h a sui table cl eani ng fl uid (brake cleaner).1.
2. Drai n the engi ne oil and refil l wit h recommended oil , premixed wi th Dies el Engine Oil Dye or equi val ent . Us e aminimum 14.8 ml (0.5 ounce) t o a maxi mum 29.6 ml (1 ounce) of fl uores cent addit ive to all engines. If oil i s notpremixed, fl uorescent addi ti ve mus t fi rs t be added to the crankcas e.
2.
3. Run engi ne for 15 minutes . Stop the engine and i nspect all s eal and gas ket areas for leaks us ing a 12 Vol tMas t er UV Diagnost ic Ins pect ion Ki t or equivalent . A clear bri ght yell ow or orange area wil l i dent ify l eak. Forext remely smal l leaks, s everal hours may be required for t he leak t o appear.
3.
4. As neces s ary, pres surize t he main oil gallery s yst em t o l ocat e leaks due t o incorrect ly sealed, loos e or cockedpl ugs . If the flywheel bol ts l eak oil, l ook for s ealer on t he threads .4.
5. Repai r al l leaks as neces s ary.5.
Compression Test
General Remarks
• NOTE: Removing fuses and di sconnect ing elect rical components may caus e t he Engine Control Modul e (ECM) t o l ogDiagnost ic Troubl e Codes (DTCs ). Aft er t he meas urements have been carried out , DTCs should be cl eared from memory byconnecti ng to the Manufact urer Approved Diagnos t ic Sys tem.
• NOTE: Only check the compress ion pres sure wit h t he valves s et to the pres cri bed clearance (i f thi s can be adjus ted).
The compres si on pres s ure s hould be checked wi th the engine at operat ing temperat ure.
Check the Comp ression Pressure
W ARNING: Move gear s elector lever to 'P' pos i ti on. Fail ure t o follow thi s ins t ructi on may res ult i n pers onal injury.
1. Remove the fuel pump rel ay.1.
2. Start the engine - the engine wi ll s t art, run for a few seconds then s t op.2.
3. Remove the s park pl ugs.3.
4. Ins t al l the compres s ion t es ter.4.
5. Ins t al l an auxi li ary s tarter s wit ch in the st art ing circui t. W it h t he ignit ion swi tch O FF, us ing t he auxi li ary s t arters wi tch, crank the engine a mi ni mum of five compres s ion st rokes and record the hi ghest reading. Not e theapproximat e number of compress i on s trokes requi red t o obt ai n t he highest readi ng.
5.
6. Repeat t he tes t on each cyl inder, cranking t he engine approximat ely t he s ame number of compress i on st rokes .6.
7. Ins t al l the removed components in reverse order, obs erving t he s peci fi ed ti ght ening t orques.7.
8. Clear all DTCs from the ECM.8.