Jeep Cherokee 1999 Electronic Service Manual page 1071

9 - 54 2.5L ENGINE
SPECI FI CAT I ON S (Cont inue d)
P ist on Rin g Gr oove Dia m et er —Com pr ession Rin g
#2 . . . . . . . 87.63 t o 87.88 m m (3.45 t o 3.4599 in .)
P ist on Rin g Gr oove Dia m et er —
Oil Con t r ol Rin g . . . . . . . . . . . 89.66 t o 89.92 m m
P ist on P in Bor e Dia m et er . . 23.650 t o 23.658 m m
P ist on P in Dia m et er . . . . . . 23.637 t o 23.640 m m
P ist on -t o-P in Clea r a n ce . . . . 0.0102 t o 0.0208 m m
P ist on -t o-P in Con n ect in g Rod (P r ess F it ) . . 8.9 kN
P is to n Rin g s
Rin g Ga p Clea r a n ce—Top Com pr ession
Rin g . . . 0.229 t o 0.610 m m (0.0090 t o 0.0240 in .)
Rin g Ga p Clea r a n ce—2n d Com pr ession
Rin g . . . 0.483 t o 0.965 m m (0.0190 t o 0.0380 in .)
Rin g Ga p Clea r a n ce—Oil Con t r ol St eel
Ra ils . . . . . 0.254 t o 1.500 m m (0.010 t o 0.060 in .)
Rin g Side Clea r a n ce—Com pr ession
Rin gs . . 0.042 t o 0.084 m m (0.0017 t o 0.0033 in .)
Rin g Side Clea r a n ce—Oil Con t r ol
Rin g . . . . . 0.06 t o 0.21 m m (0.0024 t o 0.0083 in .)
Oil P u m p
Gea r-t o-Body Clea r a n ce
(Ra dia l) . . . 0.051 t o 0.102 m m (0.002 t o 0.004 in .)
Gea r-t o-Body Clea r a n ce (Ra dia l)
(P r efer r ed) . . . . . . . . . . . . . . 0.051 m m (0.002 in .)
Gea r E n d Clea r a n ce—
P la st iga ge . 0.051 t o 0.152 m m (0.002 t o 0.006 in .)
Gea r E n d Clea r a n ce—
P la st iga ge (P r efer r ed) . . . . . 0.051 m m (0.002 in .)
Gea r E n d Clea r a n ce—F eeler
Ga u ge . . 0.1016 t o 0.2032 m m (0.004 t o 0.008 in .)
Gea r E n d Clea r a n ce—F eeler
Ga u ge (P r efer r ed) . . . . . . . 0.1778 m m (0.007 in .)
Oil P re s s u re
Min . P r essu r e (600 r pm ) . . . . . . 89.6 kP a (13 psi)
At Idle Speed (800 r pm ) . . . . . . . . 172 t o 241 kP a
At 1600 r pm & H igh er . . . . . . . . . 255 t o 517 kP a
Oil P r essu r e Relief . . . . . . . . . . . 517 kP a (75 psi)
2.5L TORQUE SPECIFICA TIONS
D ES CRIP TION
A/C Co m p re s s o r B ra c k e t-to -En g in e
Bolt s . . . . . . . . . . . . . . . . . . . . 34 N·m (25 ft . lbs.)
A/C Co m p re s s o r
Mou n t in g Bolt s . . . . . . . . . . . . 27 N·m (20 ft . lbs.)
B lo c k He a te r
Nu t . . . . . . . . . . . . . . . . . . . . 1.8 N·m (16 in . lbs.)
(3.53 t o 3.54 in .)
(0.9312 t o 0.9315 in .)
(0.9306 t o 0.9307 in .)
(0.0005 t o 0.0009 in .)
(2000 lbf.)
(25 t o 35 psi)
(37 t o 75 psi)
TORQU E
D ES CRIP TION
Ca m s h a ft S p ro c k e t
Bolt . . . . . . . . . . . . . . . . . . . . 108 N·m (80 ft . lbs.)
Clu tc h Co v e r to F ly w h e e l
Bolt s . . . . . . . . . . . . . . . . . . . . 31 N·m (23 ft . lbs.)
Co n n e c tin g Ro d Ca p
Nu t s . . . . . . . . . . . . . . . . . . . . 45 N·m (33 ft . lbs.)
Cy lin d e r B lo c k
Dr a in P lu gs . . . . . . . . . . . . . . . 41 N·m (30 ft . lbs.)
Cy lin d e r He a d
Bolt s #1–10 & #12–14 . . . . . 149 N·m (110 ft . lbs.)
Bolt #11 . . . . . . . . . . . . . . . . 135 N·m (100 ft . lbs.)
Cy lin d e r He a d Co v e r
Bolt s . . . . . . . . . . . . . . . . . . . 13 N·m (115 in . lbs.)
D ip s tic k Tu be B ra c k e t to Cy lin d e r B lo c k
Bolt . . . . . . . . . . . . . . . . . . . 19 N·m (168 in . lbs.)
D is tribu to r Ho ld -D o w n Cla m p
Bolt . . . . . . . . . . . . . . . . . . . 23 N·m (204 in . lbs.)
En g in e Mo u n ts —F ro n t
In su la t or Br a cket Bolt s . . . . . . 81 N·m (60 ft . lbs.)
In su la t or Br a cket Nu t s . . . . . . 47 N·m (35 ft . lbs.)
In su la t or Th r u -Bolt . . . . . . . . . 81 N·m (60 ft . lbs.)
En g in e Mo u n ts —Re a r
Su ppor t Cu sh ion /Cr ossm em ber Nu t s . . . . 22 N·m
Su ppor t Cu sh ion /Br a cket Nu t s . . . . . . . . . 46 N·m
Tr a n sm ission Su ppor t Br a cket Bolt s . . . . . 43 N·m
Tr a n sm ission Su ppor t Br a cket /
Cu sh ion Bolt . . . . . . . . . . . . . 75 N·m (55 ft . lbs.)
Tr a n sm ission Su ppor t Ada pt or Br a cket
Bolt s . . . . . . . . . . . . . . . . . . . . 75 N·m (55 ft . lbs.)
Ex h a u s t Ma n ifo ld /P ip e
Nu t s . . . . . . . . . . . . . . . . . . . . 27 N·m (20 ft . lbs.)
F ly w h e e l/Co n v e rte r Ho u s in g
Bolt s . . . . . . . . . . . . . . . . . . . . 38 N·m (28 ft . lbs.)
F ly w h e e l to Cra n k s h a ft
Bolt s . . . . . . . . . . . . . . . . . . 143 N·m (105 ft . lbs.)
F ro n t Co v e r to B lo c k
Bolt s 1/4–20 . . . . . . . . . . . . . . . 7 N·m (60 in . lbs.)
Bolt s 5/16–18 . . . . . . . . . . . . 22 N·m (192 in . lbs.)
Ge n e ra to r
Adju st in g Bolt . . . . . . . . . . . . . 24 N·m (18 ft . lbs.)
P ivot Bolt /Nu t . . . . . . . . . . . . . 38 N·m (28 ft . lbs.)
Mou n t in g Br a cket -t o–E n gin e Bolt s . . . . . . 38 N·m
Mou n t in g/H ea d Bolt s . . . . . . . 45 N·m (33 ft . lbs.)
Ma in B e a rin g Ca p
Bolt s . . . . . . . . . . . . . . . . . . . 108 N·m (80 ft . lbs.)
Oil F ilte r
Ada pt or Bolt . . . . . . . . . . . . . 102 N·m (75 ft . lbs.)
Con n ect or . . . . . . . . . . . . . . . . 68 N·m (50 ft . lbs.)
F ilt er . . . . . . . . . . . . . . . . . . . . 18 N·m (13 ft . lbs.)
X J
TORQU E
(192 in . lbs.)
(34 ft . lbs.)
(32 ft . lbs.)
(28 ft . lbs.)