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ItemPart NumberDescription
A-Rear vi ew of exhaus t camshaft pul ley1-CMP s ensor
2-CMP t arget area
3-Cams haft pulley key s l ot4-Cams haft t imi ng pin l ocat ion
The CMP s ensor i s mounted at t he front of the engine behind the exhaus t cams haft drive pulley. The s ens or t ip prot rudest hrough a hole i n t he cyl inder head cover, and i s pos i ti oned cl os e t o t he cams haft pulley t arget area. The pos it ion of t hes ens or t o the cams haft pull ey is adjust able.
For furt her det ail s on s ett ing t he CMP s ens or gap, refer to t he relevant Servi ce Repair Procedures (SRP) manual .
The s ens or is a variabl e rel uct ance s ens or t hat provides a s ignal of No. 1 cyl inder cams haft pos it ion t o t he ECM. Theinformat ion i s us ed by the ECM to det ermine t he precis e moment for inject ion duri ng engi ne cranking.For addit ional informat ion, refer t o: Electroni c Engi ne Controls (303-14 Electronic Engine Controls - 2.2L Durat orq - Td4,Des cript ion and Operat ion).
Intake and Exhaust Valves
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6-Hydraul ic l ash adjust er
7-Pl unger s pri ng
8-High-pres s ure chamber9-Bal l val ve
10-Pl unger
11-Res ervoir chamber12-Oil pass age
13-Hydraul ic l ash adjust er body
14-Pl unger capMovement of t he cams haft lobe pres s es down on t he fi nger rocker rol ler, and cons equentl y, t he hydrauli c las h adjus ter andvalve mechani sm are forced down together. The res pecti ve valve is forced down against valve s pri ng pres sure, and thehydraulic pl unger i s als o forced int o an oil chamber in t he cyl inder head. This t ype of val ve act uati on mini mizes fri ct ionbetween t he valve operat ing component s, and al so eliminates t he requi rement for manual adjust ment .
The body of the hydrauli c las h adjus t er contai ns a plunger, and 2 chambers for oil feed and press uri zed oil. Thepres s urized oi l i s s uppl ied t o t he las h adjus t er vi a t he cyl inder head oi l gal lery, and t hrough a hole in t he s ide of t he las hadjus ter body. The oi l pas s es int o a feed chamber wi thin the l ash adjus ter, and t hen t hrough to a s eparate press urechamber via a one-way ball valve.
Oil flow from t he pres s ure chamber is det ermi ned by the clearance bet ween the l ash adjust er outer body and the centerplunger. Oi l es capes up the s i de of the pl unger each ti me t he las h adjus t er i s operated. The downward press ure on t heplunger forces a corres ponding amount of oil i n the las h adjus ter body to be dis placed.
As t he camshaft lobe rot ates furt her, downward press ure on the cams haft and finger rocker i s removed. The las h adjus t erplunger is forced up by t he oil pres s ure contai ned in t he pres s ure chamber. The press ure i s not s uffi cient to affect valveoperati on, but i s s uffi cient to el iminate the clearance between the finger rocker and t op of the val ve st em.
Cylinder Head Cover
ItemPart NumberDescription
1-PCV valve2-Crankcas e venti lat ion hos e connecti on
3-Engi ne cover fixing
4-CMP s ensor l ocat ionThe 'L' s haped cyli nder head cover is ins tall ed over t he s t ructural cams haft cover and encl oses t he exhaus t cams haft, andt he int ake and exhaust cams haft dri ve openi ngs . A preformed gasket and t he PCV component O-ri ngs provi de t he sealbetween t he 2 covers .
The cyl inder head cover is manufact ured from compos it e mat eri al s , and incorporates the Pos it ive Crankcase Vent il at ionValve (PCV), s afet y val ve and crankcas e vent il ati on connecti ons .For addit ional informat ion, refer t o: Engi ne Emis s ion Cont rol (303-08B Engi ne Emis s ion Cont rol - TD4 2.2L Di esel ,Des cript ion and Operat ion).
The cyl inder head cover provides the locat ion for the CMP s ens or, and 3 of the acoust ic engine cover fi xi ngs .
Thermal Control Module
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ItemPart NumberDescription
1-Thermal control modul e2-Securi ng bol t (2 off)
3-Securi ng s tud and nut (2 off)
The cool ing s ys tem thermal control modul e i s s ecured to t he rear of t he cyl inder head by 2 s tuds wi th nut s and 2 bol ts ,and is sealed to the head wi th an O-ring. The module contai ns the cooli ng s ys t em t hermos tat and forms the junct ion fort he cooli ng s yst em hos es.For addit ional informat ion, refer t o: Engi ne Cooling (303-03B Engine Cooli ng - TD4 2.2L Dies el , Descripti on and Operat ion).
Vacuum Pump
Page 795 of 3229
ItemPart NumberDescription
1-Gl ow plug2-Gl ow plug harnes s
The 4 gl ow plugs are ins tal led at t he lower RH s i de of the cyli nder head, adjacent to each i ntake heli cal port . Each gl owplug s eats in a formed dri ll ing wi th the t ip protruding i nt o t he combus t ion chamber. The glow plugs are connect ed by acommon electrical harness , and are cont roll ed by t he ECM.
The glow pl ugs pre-heat t he combus t ion chamber before and duri ng engine cranking t o promot e combus ti on. The glowplugs are ess enti al for aiding engine st art ing, and als o reduce emi s si ons and engi ne noi s e of a cold engine. For addit ionalinformat ion, refer t o:
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),Glow Pl ug Syst em (303-07B Gl ow Plug Sys tem, Des cri pt ion and Operati on).
Exhaust Gas Recirculation (EG R) Valve and Cooler Assembly
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ItemPart NumberDescription
1-Fixi ng to cams haft cover2-EGR cooler
3-Bolt (3 off)
4-EGR valveThe EGR valve and cooler ass embl y is l ocat ed on t he RH s ide of t he cylinder head above t he exhaus t manifold, ands ecured wit h 4 fixi ngs . An i nl et pipe connects the EGR cooler t o t he exhaus t manifold. A gas t rans fer t ube is rout ed acros st he engi ne and connect s t he EGR valve out let t o the intake mani fold hous ing.
A pi pe on t he EGR cool er body connect s to the cl imat e cont rol heater outl et hos e, and provides t he cool ant s upply t o t heEGR cooler. The EGR cooler outl et connect s t o t he cool ant rail , locat ed on t he RH s ide of the engine. The cool ant rail isconnected bet ween the t hermal control modul e and the coolant pump rear hous ing.For addit ional informat ion, refer t o: Engi ne Cooling (303-03B Engine Cooli ng - TD4 2.2L Dies el , Descripti on and Operat ion).
The EGR i s cont rol led by t he ECM, and is enabled when t he engine i s at normal operati ng t emperature and under crui si ngcondi ti ons .For addit ional informat ion, refer t o: Engi ne Emis s ion Cont rol (303-08B Engi ne Emis s ion Cont rol - TD4 2.2L Di esel ,Des cript ion and Operat ion).
Intake Manifold
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ItemPart NumberDescription
1-Int ake manifol d2-Bolt (7 off)
The int ake manifol d i s located on t he LH s i de of the engine, and att ached t o t he cylinder head wit h 7 bol ts . The 4 l owerhelical s wirl ports and 4 upper fil ling ports are s ealed t o t he cyl inder head and s tructural cams haft cover wi th a s hapeds eal ing ring. Care must be taken when ins t al li ng the intake mani fold that t he s eal ing rings are correctl y s eat ed wi thi n theport s.
• NOTE: A s mal l quant it y of grease may be us ed t o ret ain t he s ealing rings i n t he int ake manifol d port s duri ng ins tal lati onof the intake mani fold.
The int ake manifol d provides t he l ocati on for t he electronic t hrot tl e ass embl y, and t he port de-act ivati on devi cecomponents . A port on t he RH s ide of t he i nt ake manifold provi des the connect ion for t he EGR gas t rans fer t ube. Foraddi ti onal i nformat ion, refer to:
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).
Exhaust Manifold
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ItemPart NumberDescription
1-Exhaust mani fold2-St ud and nut (9 off)
3-Turbocharger mounti ng fl ange
4-Spacer (9 off)5-Exhaust heat s hield
6-Exhaust heat s hield fixi ng (4 off)
The exhaus t manifold i s att ached t o t he RH si de of the cyli nder head wi th a gas ket and 9 fixings . Spacers are i ns t alled ont he fi xi ngs to al low for expans ion and contract ion of t he manifold, whil e mai nt aini ng the cl ampi ng loads .
The manifold provi des the mount ing l ocat ion for the Variable Geomet ry Turbocharger (VGT) as s embl y, and a connecti on tot he EGR gas transfer tube. A heat s hi eld i s ins t al led wit h 4 fixings over the exhaust mani fold and VGT t o prot ect ot hercomponents , and t o prevent accidental contact wit h t he hot exhaust component s .
The electroni cal ly controll ed VGT is at t ached t o t he exhaus t manifol d outl et fl ange wit h 3 bolt s . For addit ional informati on,refer to:
Turbocharger (303-04C Fuel Charging and Cont rol s - Turbocharger - TD4 2.2L Dies el, Des cript ion and Operat ion),Engi ne Emis s ion Cont rol (303-08B Engine Emis s ion Control - TD4 2.2L Di esel , Des cri pti on 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).
LUBRICATION SYSTEM
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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