Mazda engine L8, LF, L3. Manual - part 17

 

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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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