
The cyl inder head and st ructural cams haft  cover are manufactured to form mat ing parts . The part s  are mil led i n a si ngl eoperati on and accurat ely pos it ioned wi th 2 alignment  s leeves. The 2 components  mus t  al ways  be ins tall ed t oget her, andnot renewed as  s eparate component s . The cyl inder head and cams haft  cover are s eal ed to each ot her during manufact urewit h a gas ket and s ili cone bas ed s eal ant, and are s ecured wit h 27 bolt s . An oil s eal i nst all ed at the front  of t he cyl inderhead provides  s eal ing of t he exhaus t camshaft hous ing. The open port s at the rear of the cyli nder head are sealed wit ht he vacuum pump and hi gh-pres s ure fuel pump s eal ing rings .
Two ali gnment  sl eeves  correct ly l ocat e t he cyl inder head and gas ket  to t he cylinder block. The cyli nder head is  secured t ot he cyl inder bl ock wit h 10 deep-s eat ed bolt s .
• NOTE: The cyl inder head bol ts  are not acces si ble wit h the st ruct ural cams haft  cover i nst all ed.
• NOTE: The cyl inder head is  not  t o be reworked.
The cyl inder head is  manufact ured from al uminum alloy, havi ng valve s eats  and guides made of s i nt ered st eel. Thecyl inder head is  precis ely machi ned and mil led t o i ncorporate t he 4 combus ti on chambers, cams haft  l ower beari nghous i ngs , oil  drill ings  and cool ant gal leri es, and t he air i ntake, val ve ti ming and fuel sys t em component  bores  andhous i ngs .
The desi gn of the cyli nder head maximizes air flow and s wi rl  i n the combus ti on chambers. The 2 int ake val ve seat s aremachined wit h rais ed profil es  that act  to promote swi rl  of t he int ake ai r fl ow. Combined wit h t he acti on of the i ntakemanifold heli cal  port , t he s wirl effect of the 2 int ake port profi les  al lows  t he air and i nject ed fuel  t o complet el y mi x, andreach t he outer edge of the combus ti on chamber.
The s truct ural camshaft cover is  manufact ured from alumi num all oy, and i s machined on t he upper s urface wit h t hecamshaft upper bearing hous ings . The cover is  al so formed wi th 4 int ake ai r fi ll ing t racts , fuel  i nject or bores  and ori fi cesfor t he cyl inder head cover PCV components . The i nt ake air t racts  join the i ntake air mani fold to the cyli nder head int akefi ll ing port s .
The cyl inder head al s o provides  t he mounti ng locati ons  for the foll owing:
Front engi ne mounti ngFront and rear engine l ifti ng eyesInt ake and exhaus t manifol dsEGR valve and coolerFuel  fil ter s upport bracketThermal cont rol  moduleVacuum pump and high-press ure fuel pump.
Cylinder Head G asket
ItemPart NumberDescription
1-Engi ne type i dent ificati on
2-Gas ket thi cknes s identi fi cat ion3-Gas ket thi cknes s identi fi cat ion
The cyl inder head gas ket is  made from l aminated metal and is  avail abl e i n 4 di fferent thickness es . Lugs  formed on thes ide of t he gasket are 'dot' marked to i dent ify t he engi ne t ype, and t he thi ckness  of t he gas ket  i nst all ed. A new gasket iss elect ed bas ed on t he pis ton protrusi on meas urement from t he cyl inder block.
For furt her det ail s on cyl inder head gas ket sel ect ion, refer t o t he rel evant  Servi ce Repair Procedures  (SRP) manual .
Camshafts 

ItemPart NumberDescription
1-Exhaus t  cams haft2-Intake cams haft
3-No. 3 bearing (end-fl oat  control)
4-Si ngl e row t imi ng chai n5-Exhaus t  cams haft  pull ey
The int ake and exhaus t cams haft s  are manufactured from cast -iron. The 2 cams haft s  are mount ed between the s t ructuralcamshaft cover and cyl inder head, wit h each camshaft locat ed i n 5 machined beari ng hous i ngs . Shel l bearings  are not  us edin the beari ng housi ngs , t he camshafts  run direct ly in t he alumi num beari ng. Lateral movement  of t he camshaft s  i scont rol led by No. 3 cams haft  beari ng, and i s not adjust able. The bearing is  manufactured on both camshaft s  t o provi de thecorrect  end-float.
• NOTE: In product ion, t he camshaft end-fl oat  i s  0.070 mm t o 0.168 mm (0.003 in t o 0.007 in). In s ervi ce, if t he end-floatis  out  of s peci fi cat ion t he cams haft(s ) and/or cyli nder head and s t ructural  cams haft cover may requi re renewal.
Each cams haft  has  8 machi ned lobes formed in pai rs  al ong the length of t he cams haft. The cams haft  lobes  operat e t heinl et  and exhaust  valves  t hrough hydraulic las h adjus ters and rol ler-t ype finger levers
A s pur gear wi th 19 teet h is  formed on t he front end of each cams haft. The 2 gears are joined by a 40-li nk s ingle rowt imi ng chai n. The 2 cams haft  gears  are marked wit h a ti ming mark t hat coi ncides  wi th the 2 col ored l inks on t he camshaftt imi ng chai n. A dri ve sl ot is  formed in t he rear end of each camshaft  to provi de t he drive to t he flange mounted vacuumpump and high-pres sure fuel  pump. The vacuum pump is  driven by t he inl et  cams haft ; the hi gh-pres s ure fuel pump isdri ven by the exhaust  cams haft .
The exhaus t camshaft is  driven by t he cranks haft  drive gear vi a a toothed t iming belt . The exhaus t camshaft  pul leycont ains  42 t eeth and is  keyed and bol ted to t he front of the exhaust  cams haft . The int ake cams haft  i s dri ven by theexhaus t camshaft vi a t he s ingle row chain.
The exhaus t camshaft pul ley i s manufactured wit h cut-out s  and a not ch in the center hub. The cut -out s form t he t argetarea for the CMP s ens or. The not ch provides the locat ion for a cams haft t imi ng pin speci al tool. The s peci al tool is  us ed i nconjunct ion wi th other s pecial  t ool s t o s et  the exhaus t  cams haft duri ng engi ne ti ming.
For furt her det ail s on s ett ing t he engine valve t imi ng, refer t o t he rel evant Service Repair Procedures  (SRP) manual.
Engi ne Valve Ti ming
The valve t imi ng val ues are s hown i n t he fol lowing t able:
ValvePositionInlet val ve opens15 degrees  BTDC
Inlet val ve clos es12 degrees  ABDC
Exhaus t  valve opens23 degrees  BBDCExhaus t  valve clos es17 degrees  ATDC
Key:
BTDC = Before Top Dead Cent erABDC = Aft er Bot t om Dead CenterBBDC = Before Bot t om Dead CenterATDC = Aft er Top Dead Cent er.
Camshaft Position (CMP) Sensor 

ItemPart NumberDescription
1-Connecti on t o brake boost er2-Vacuum pump
3-Connecti on t o port  de-act ivati on val ve
The vacuum pump is  mount ed wi th 3 bol ts  to the rear LH s ide of t he cyl inder head, and is  driven by t he int ake cams haft .The pump housi ng is  manufact ured wit h a flanged face and a cyli ndrical hous ing that cont ains  t he pump drive s haft . Thedri ve s haft hous ing protrudes  into the cyli nder head housi ng and is  sealed wit h an O-ri ng. The end of t he dri ve s haft isformed wi th a dri ve lug t hat locat es  i n a corresponding s lot  formed in t he end of the intake cams haft .
The vacuum pump is  us ed for brake boos t er operat ion, and actuati on of the intake mani fold port de-acti vat ion device. Foraddi ti onal  i nformat ion, refer to:
Brake Boost er (206-07 Power Brake Act uat ion, Des cript ion and Operat ion),Elect roni c Engi ne Cont rol s  (303-14 Electroni c Engi ne Controls  - 2.2L Duratorq - Td4, Descri pti on and Operat ion),Int ake Air Dis t ri but ion and Fi lt ering (303-12B Intake Ai r Dis tributi on and Fil tering - TD4 2.2L Dies el, Des cript ion andOperati on).
High-Pressure Fuel Pump
• NOTE: HP pump protecti ve cras h s hield not  s hown. 

ItemPart NumberDescription
1-High-press ure fuel pump2-Bol t (3 off)
The high-press ure fuel pump i s mounted wi th 3 bolt s t o the rear RH s ide of t he cylinder head, and i s dri ven by the exhaus tcamshaft. The pump hous ing i s manufactured wit h a flanged face, and a cyli ndrical hous ing contai ni ng t he pump dri ves haft. The drive s haft  hous ing prot rudes  i nt o t he cyl inder head hous ing and i s  s ealed wi th an O-ring.
A drive plat e i s ins tal led over the drive s haft  end, and connect s  t o a corres ponding sl ot formed in the end of t he exhaus tcamshaft.
A cras h s hiel d is  ins tal led t o t he front  of t he HP fuel pump to provide prot ect ion during a front al impact.
The fuel  pump i s a 3 radial pis t on type t hat  del ivers  fuel t o t he common fuel  rail , under the cont rol of the ECM. Foraddi ti onal  i nformat ion, refer to:
Fuel  Charging and Cont rols (303-04B Fuel Charging and Controls  - TD4 2.2L Di es el, Des cri pt ion and Operati on),Elect roni c Engi ne Cont rol s  (303-14 Electroni c Engi ne Controls  - 2.2L Duratorq - Td4, Descri pti on and Operat ion).
High-Pressure Common Fuel Rail 

ItemPart NumberDescription
1-High-pres sure common fuel  rail2-Bolt  (2 off)
The common fuel  rail is  manufact ured from forged s teel and is  s ecured wi th 2 bolt s to the cyli nder head, above t he li ne oft he exhaus t cams haft . The fuel rai l st ores  press uri zed fuel from t he high-pres sure fuel  pump and deli vers  t he fuel t o thefuel  inject ors .
The fuel  rai l pres sure is  regulat ed by a Pres s ure Cont rol Valve (PCV) l ocat ed at the fuel pump end of the fuel rail , undert he cont rol of the ECM. A fuel pres sure s ensor i ns t alled in t he oppos i te end of t he fuel  rai l provides  t he act ual fuelpres s ure s ignal to the ECM. For addi ti onal  i nformat ion, refer to:
Fuel  Charging and Cont rols (303-04B Fuel Charging and Controls  - TD4 2.2L Di es el, Des cri pt ion and Operati on),Elect roni c Engi ne Cont rol s  (303-14 Electroni c Engi ne Controls  - 2.2L Duratorq - Td4, Descri pti on and Operat ion).
Fuel Injectors 

The lubricat ion sys tem is  a wet  s ump, pres sure fed type. The oil lubri cat es  t he engine s lidi ng s urfaces , di s si pat es  heat,absorbs fuel combus t ion resi due and seal s off t he gap between t he cyl inder and pis ton.
The engi ne is  lubri cat ed by a force-fed oil  circul at ion sys tem compri si ng a full-fl ow oi l fil ter and cooler ass embly. The oilfi lt er and cooler form an int egral ass embly mount ed on t he LH s i de of the cyli nder block, in clos e proxi mit y t o t he oilpump. Engi ne oil is  cooled by the engine cooli ng s ys t em, and eliminates  t he requi rement for an addit ional remot elymounted engine oi l cooler.
Oil  i s  drawn out  of t he oil  pan and pres s uri zed by the cranks haft dri ven oi l pump. The out put  from t he oil pump i s fi lt eredand cool ed before bei ng dis t ribut ed to the cyli nder bl ock mai n oil  gall ery. Dri ll ings and galleries  connect ed to the mai n oilgallery deli ver pres s uri zed oi l to the cyli nder block and cyl inder head reciprocal component bearings. A dri lli ng above No. 3main bearing cap direct s  pres s uri zed oi l to a port  at  t he rear RH si de of the cyli nder block. The port provides  pres s uri zedoil  t hrough a banjo connect ion and pi pe to the t urbocharger bearings.
All  t he engi ne moving parts  are l ubricated by press ure or spl as h oi l. Pres s uri zed oil is  al so provided for operat ion of t hehydraulic las h adjus ters and ti ming chain tens ioner.
Oil  i s  ret urned t o t he oil  pan under gravi ty. Large drain holes  cas t in the cyli nder head and cyl inder bl ock al low a quickret urn of t he oil .
The lubricat ion sys tem is  replenis hed t hrough the oi l fi ll er cap, locat ed on t he engine acous t ic cover. An oil  l evel  gage islocated on the LH si de of the oi l pan. Two marks  at t he end of the gage i ndi cat e t he mini mum and maxi mum oi l levels .The difference between the minimum and maximum marks  is  approximat ely 1.5 l it ers  (1.58 US quarts ) of oil .
Oil Pump 

Publi s hed: 11-May-2011
Engine - TD4 2.2L Diesel - Engine
Diagnosi s  and Tes ti ng
Principle of Operation
For a detail ed descripti on of the 2.2L Dies el engi ne, refer t o the relevant Descri pti on and Operat ion s ect ion in t heworks hop manual .REFER to: Engine (303-01B Engine - TD4 2.2L Dies el, Des cript ion and Operat ion).
Inspection and Verification
CAUTION: Di agnos is  by s ubs ti tut ion from a donor vehicle is  NO T acceptabl e. Subs ti tut ion of cont rol  modules  doesnot guarant ee confirmat ion of a faul t, and may als o caus e addit ional fault s  i n t he vehi cl e being t est ed and/or t he donorvehi cl e.
• NOTE: If the control modul e or a component  i s s us pect and the vehicle remains  under manufacturer warrant y, refer t o theW arranty Pol icy and Procedures  manual (s ect ion B1.2), or determine i f any pri or approval programme is  in operat ion, pri ort o the ins tall ati on of a new module/component.
1. Verify t he cus t omer concern. Concerns  have been s eparated i nto Leaks and Noise Vibration and Harshness(NVH) for ease of us e.1.
2. Vis ually ins pect  for obvious  s igns  of mechani cal  or electrical damage.2.
Visual Inspection
MechanicalIntake air s ys tem leaks/damageFuel l eaksCoolant levelCoolant leaks.REFER to: Engine Cooli ng (303-03B Engi ne Cool ing - TD4 2.2L Di es el, Di agnos is  and Tes t ing).Oi l levelOi l leaksVis i bl y damaged or worn partsLoose or mis s ing nuts  or bol ts
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 ep.3.
4. If t he concern is  not  vis uall y evi dent , verify t he s ymptom and refer t o t he Symptom Chart .4.
Symptom Charts
Symptom C hart, LeaksSymptomPossible CauseAction
External  coolant leaksDamaged hos e(s )Damaged expans iont ankDamaged radi atorLeaki ngs eals /gas ket sCracked/damagedcas ings
For cool ing s ys tem checks.REFER t o: Engi ne Cool ing (303-03B Engine Cooli ng - TD42.2L Dies el, Di agnos is  and Tes ti ng).
Internal  cool ant  leaks . Note: T hismay be indicated by theproduction of w hite smoke fromthe exhaust
Leaki ngs eals /gas ket sCracked/damagedcas ings
Check for cros s  contami nat ion of cooli ng sys t em andengine oi l. Check for exhaus t gases  bei ng emit tedt hrough header t ank. For addi ti onal  cooling sys temchecks .REFER t o: Engi ne Cool ing (303-03B Engine Cooli ng - TD42.2L Dies el, Di agnos is  and Tes ti ng).
Engine overheatsInsuffi ci ent  coolantInsuffi ci ent  engineoi lCooli ng s ys t empres s ure cap faultThermos t at notopeningCoolant  pump failureCooli ng fan fail ure
Check for correct  coolant/engi ne oil  l evels . For cool ings ys tem checks.REFER t o: Engi ne Cool ing (303-03B Engine Cooli ng - TD42.2L Dies el, Di agnos is  and Tes ti ng).
Engine t akes  t oo l ong to reachoperat ing t emperatureThermos t at st uckopenFor cool ing s ys tem checks.REFER t o: Engi ne Cool ing (303-03B Engine Cooli ng - TD42.2L Dies el, Di agnos is  and Tes ti ng).External  oil  l eaksGas ket sSealsHos esOi l fi lt erOi l coolerDamaged/Cracked
Cl ean and confirm t he area of t he l eak. Vis uall y check t hecondit ion of oil  carryi ng component s. Check the crankcaseventi lat ion s ys tem.REFER t o: Engi ne Emis s ion Cont rol (303-08B EngineEmis si on Control - TD4 2.2L Di es el, Di agnos is  andTes ti ng). 

SymptomPossible CauseAction
cas ingsCrankcaseventi lat ion s yst emPi st on ring blow-by
Carry out  a compres s ion tes t, GO to Pinpoint Test  A.
Internal  oil  l eaks  (leaks int o cool antor combus t ion chamber) Note: T hismay be indicated by theproduction of blue smoke from theexhaust
Gas ket sSealsHos esDamaged/Crackedcas ingsW orn valve gui desW orn cyli nderbores /pi s tonsBroken pi st on rings
Check for t races of oil in the coolant. Check for evidenceof oi l i n t he combus t ion chambers  (depos it s  on t he glowpl ugs , et c). Confirm oi l cons umpti on and vehi cl e us agewit h the owner/driver. Carry out an oil  consumpt ion t es t,GO  t o Pinpoint  Test  B.
• NOTE: As  t he checks s ugges ted here are open to i nterpretat ion, they s hould be us ed as  a gui de only. Descripti ons  ofnois es, et c, are i n general t erms, s o depend on a degree of experi ence on t he part  of t he t echnician.
Symptom C hart, NVHSymptomPossible CauseAction
Ratt le/ti cki ng from t op ofengineVal ve gear noi seCamshaft bearing nois eCamshaft chain noi s eTens ioner nois eVacuum pump noi s eHigh pres s ure fuel pumpnoi s eInject or leaki ng
Check t he engi ne oil  l evel and pres s ure, GO t o Pi npoint  Tes tC. . Check t he functi on of the hydrauli c t appet s and condit ionof cams haft  l obes  and beari ngs. Check the cams haft  chainsand tens ioners , vacuum pump and high pres s ure fuel pump.Carry out  i njector l eak t es t
Squeaking/Creaking/Squealfrom front  of engineAcces sory dri ve bel tAcces sory dri ve bel ttens ionerDri ven component s  onaccess ory dri ve bel t
Check t he acces sory dri ve belt  and dri ven components .REFER t o: Acces s ory Drive (303-05B Acces sory Drive - TD42.2L Di es el, Di agnos is  and Tes t ing).
W hi ne/Slap/Growl fromfront of engi neAcces sory dri ve bel tAcces sory dri ve bel ttens ionerDri ven component s  onaccess ory dri ve bel tTimi ng bel t nois eTimi ng bel t t ens ionernoi s e
Check t he acces sory dri ve belt  and dri ven components .REFER t o: Acces s ory Drive (303-05B Acces sory Drive - TD42.2L Di es el, Di agnos is  and Tes t ing).Check t he t imi ng bel t and t ens ioners  for nois e/damage
Knock from l ower half ofengine (oft en wors e wi th acold engine)
Engi ne oil level/pres surelowPis ton s l apPis ton pi n nois eConnecti ng rod beari ngnoi s e
Check t he engi ne oil  l evel and pres s ure, GO t o Pi npoint  Tes tC. . Check for debri s  i n the engi ne oil, check condit ion ofengi ne components
Knock/Rumble from lowerhalf of engine (oft en wors eon overrun)
Engi ne oil level/pres surelowMain beari ng nois e
Check t he engi ne oil  l evel and pres s ure, GO t o Pi npoint  Tes tC. . Check for debri s  i n the engi ne oil, check condit ion ofengi ne components
W hi ne/W hi st leInt ake ai r s ys t em l eaksDamaged turbocharger(when nois e emanat ingfrom rear of engine)
Check for loose/damaged intake ai r sys tem components .Check for excess i ve turbocharger shaft fl oat  Note: a smallamount of turbocharger shaft float is normal/acceptable.Check for general  damage t o t urbocharger
Mi sfire/Rough runningElect roni c engi ne cont rol sFuel  charging andcont rolsInt ake ai r s ys t em l eaksExhaus t gas  recirculat ion(EGR) s yst emBurnt/s ti cki ng val vesW orn val ve guidesW orn cyl inderbores/pis t onsBroken pis ton ri ngsDamaged/Cracked cas ings
For el ect ronic engine controls .REFER t o: Electroni c Engine Controls (303-14B ElectronicEngi ne Cont rol s - TD4 2.2L Dies el , Diagnosi s  and Test ing).For fuel  charging and cont rols  sys tems  tes ts .REFER t o: Fuel  Chargi ng and Cont rol s (303-04B Fuel  Chargingand Cont rol s - TD4 2.2L Dies el , Diagnosi s and Test ing).Check i nt ake air s yst em for damage/leaks . For EGR s ys temtes ts .REFER t o: Engi ne Emi ss ion Cont rol (303-08B Engi ne Emis s ionCont rol  - TD4 2.2L Dies el, Diagnos is  and Tes ti ng).Check for damaged engine component s . Carry out  acompress i on tes t, GO  t o Pinpoint  Test  A.
Pinpoint Tests
• NOTE: W here reference is  made to 's uit abl e equi pment', this  refers  t o s tandard workshop equipment . Refer to theoperati ng ins t ructi ons  for your own equipment  when performing any t es t s .
PINPOINT TEST A : CHECK THE CYLINDER COMPRESSIONS
W ARNING: Only compres s ion t es ters  abl e t o read the hi gher compres si on pres s ures  found i n dies el engi nes  shouldbe us ed. Fai lure to foll ow t his  i ns t ructi on may resul t in personal injury.