Mazda engine L8, LF, L3. Manual — part 17
TD–2
TECHNICAL DATA
ENGINE TECHNICAL DATA
A6E931001001E01
TECHNICAL DATA
Item
Engine
L8
LF
L3,
L3 (with variable
valve timing
mechanism)
Cylinder head
Cylinder head gasket
contact surfaces distortion
(mm {in}) Maximum
0.10 {0.004}
Manifold contact surfaces
distortion
(mm {in})
Maximum
0.10 {0.004}
Maximum grinding
0.15 {0.006}
Valve clearance [Engine cold]
(mm {in})
IN
0.22—0.28 {0.0087—0.0110}
EX
0.27—0.33 {0.0106—0.0130}
Valve and valve guide
Valve stem diameter
(mm {in})
Standard
IN
5.470—5.485 {0.2154—0.2159}
EX
5.465—5.480 {0.2152—0.2157}
Minimum
IN
5.440 {0.2142}
EX
5.435 {0.2140}
Valve stem to guide
clearance
(mm {in})
Standard
IN
0.024—0.069 {0.0009—0.0027}
EX
0.029—0.074 {0.0012—0.0029}
Maximum
IN
0.10 {0.004}
EX
0.10 {0.004}
Valve length
(mm {in})
Standard
IN
102.99—103.79 {4.055—4.086}
EX
104.25—105.05 {4.105—4.135}
Minimum
IN
102.99 {4.055}
EX
103.79 {4.086}
Valve guide inner diameter
(mm {in}) Standard
IN
5.509—5.539 {0.2169—0.2180}
EX
5.509—5.539 {0.2169—0.2180}
Valve guide protrusion
height
(mm {in})
IN
EX
12.2—12.8 {0.481—0.503}
12.2—12.8 {0.481—0.503}
Valve head margin thickness
(mm {in}) Minimum
IN
1.62 {0.0637}
EX
1.82 {0.0716}
Valve seat
Valve seat contact width
(mm {in}) Standard
IN
1.2—1.6 {0.048—0.062}
EX
1.2—1.6 {0.048—0.062}
Valve seat angle
(
°
)
IN
45
EX
45
Valve seat sinking
(Valve protrusion height)
(mm {in}) Standard
IN
40.64—42.24 {1.600—1.662}
EX
40.50—42.10{1.595—1.657}
Valve spring
Out-of-square
(mm {in}) Maximum
1% (2.10 {0.082})
Pressing force at valve
spring height H
(N {kgf, lbf})
H: 27.8 mm
{1.094 in}
494.9 {50.47,111.2}
OCV (Oil control valve)
Coil resistance [20
°
C{68
°
F}]
(ohm) Standard
–
6.9—7.9
*
TECHNICAL DATA
TD–3
TD
Camshaft
Camshaft runout
(mm {in}) Maximum
0.03 {0.0012}
Cam lobe height
(mm {in})
Standard
IN
40.79 {1.606}
42.12{1.659}
42.12 {1.659}
42.44{1.671}
*
EX
41.08 {1.618}
41.08{1.618}
41.08 {1.618}
41.18 {1.622}
*
Minimum
IN
40.692{1.603}
42.022{1.655}
42.022{1.655}
42.342 {1.667}
*
EX
40.982 {1.614}
40.982{1.614}
40.982 {1.614}
41.082 {1.618}
*
Journal diameter
(mm {in})
Standard
24.96—24.98 {0.9827—0.9834}
Minimum
24.95 {0.982}
Journal oil clearance
(mm {in})
Standard
0.04—0.08 {0.002—0.003}
Maximum
0.09 {0.0035}
End play
(mm {in})
Standard
0.09—0.24 {0.0035—0.0094}
Maximum
0.25 {0.009}
Tappet
Tappet bore diameter
(mm {in}) Standard
31.000—31.030 {1.2205—1.2216}
Tappet diameter
(mm {in}) Standard
30.970—30.980 {1.2193—1.2196}
Tappet-to-Tappet bore oil
clearance
(mm {in})
Standard
0.02—0.06{0.0008—0.0023}
Maximum
0.15 {0.006}
Cylinder block
Cylinder head gasket
contact surfaces distortion
(mm {in}) Maximum
0.10 {0.004}
Cylinder bore diameter
[Measure the cylinder bore
at 42 mm
{1.65 in} below the top
surface]
(mm {in}) Standard
83.000—83.030
{3.2677—3.2689}
87.500—87.530 {3.4449—3.4460}
Minimum / maximum bore
diameter Limit
(mm {in})
82.940—83.090
{3.2653—3.2712}
87.440—87.590 {3.4425—3.4484}
Piston
Piston diameter
(mm {in}) Standard
82.965—82.995
{3.2664—3.2675}
87.465—87.495 {3.4435—3.4446}
Piston-to-cylinder clearance
(mm {in})
Standard
0.025—0.045 {0.0010—0.0017}
Maximum
0.11 {0.0043}
Piston ring
Piston ring-to-ring groove
clearance
(mm {in})
Standard
Top
0.03—0.08 {0.0012—0.0031}
Second
0.03—0.07 {0.0012—0.0027}
Oil (rail)
0.03—0.07 {0.0012—0.0027}
Maximum
Top
0.17 {0.0067}
Second
0.15 {0.0059}
Oil (rail)
0.15 {0.0059}
End gap
(measured in cylinder)
(mm {in})
Standard
Top
0.16—0.31 {0.0063—0.0122}
Second
0.33—0.48 {0.0130—0.0189}
Oil (rail)
0.20—0.70 {0.0079—0.0275}
Maximum
Top
1.0 {0.0393}
Second
1.0 {0.0393}
Oil (rail)
1.0 {0.0393}
Item
Engine
L8
LF
L3,
L3 (with variable
valve timing
mechanism)
TD–4
TECHNICAL DATA
*:
With variable valve timing mechanism
End Of Sie
Connecting rod and connecting rod bearing
Connecting rod side
clearance
(mm {in})
Standard
0.14—0.36 {0.0056—0.0141}
Maximum
0.435 {0.0172}
Connecting rod bearing size
(mm {in})
Standard
1.496—1.502 {0.0589—0.0591}
0.25 {0.01} Oversize
1.623—1.629 {0.0639—0.0641}
0.50 {0.02} Oversize
1.748—1.754 {0.0688—0.0690}
Connecting rod bearing oil
clearance
(mm {in})
Standard
0.026—0.052{0.0011—0.0020}
Maximum
0.10{0.0039}
Crankshaft
Crankshaft runout
(mm {in}) Maximum
0.05 {0.0019}
Main journal diameter
(mm {in})
Standard
51.980—52.000 {2.0464—2.0472}
0.25 {0.01}
undersize
51.730—51.750 {2.0366—2.0373}
Main journal oil clearance
(mm {in})
Standard
0.019—0.035{0.0007—0.0013}
Maximum
0.10 {0.0039}
Main journal out of round
(mm {in}) Maximum
0.05 {0.0019}
Main bearing size
(mm {in})
Standard
2.506—2.509 {0.0987—0.0988}
0.25 {0.01} Oversize
2.628—2.634 {0.1034—0.1037}
0.50 {0.02} Oversize
2.753—2.759 {0.1084—0.1086}
Crank pin journal diameter
(mm {in})
Standard
49.980—50.000 {1.9677—1.9685}
0.25 {0.01}
undersize
49.730—49.750 {1.9579—1.9586}
Crank pin out of round
(mm {in}) Maximum
0.05 {0.022}
Crankshaft end play
(mm {in})
Standard
0.22—0.45{0.0087—0.0177}
Maximum
0.55 {0.0216}
Front oil seal
Pushing distance of the front oil seal
[from the edge of the engine front cover]
(mm {in})
0—0.5 {0—0.019}
Bolt
Cylinder head bolt length
Standard
149.0—150.0 {5.86—5.90}
Maximum
150.5 {5.92}
Connecting rod bolt length
Standard
44.7—45.3 {1.75—1.78}
Maximum
46.0 {1.81}
Main bearing cap bolt length
Standard
110.0—110.6 {4.33—4.35}
Maximum
111.3 {4.38}
Balance shaft
Gear backlash
(mm {in}) Maximum
–
0.005-0.101
{0.00019—
0.0039}
Item
Engine
L8
LF
L3,
L3 (with variable
valve timing
mechanism)
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