Mazda 2006 MX-5 - Engine Specification [Lf]

OUTLINE
01–00–3
01–00
ENGINE SPECIFICATION [LF]
E5U010002000N03
Specification
Item
Specification
LF (2.0L)
MECHANICAL
Ty p e DOHC-16V in-line, 4-cylinder
Combustion chamber Pentroof
Displacement (ml {cc, cu in})
1,999
{1,999, 122.0}
Bore × stroke (mm {in})
87.5 × 83.1
{3.44 ×3.27}
Compression ratio 10:8
Compression pressure
(kPa {kgf/cm
2
, psi} [rpm])
1,720
{17.54, 249.5} [300]
Valve
timing
IN
Open BTDC (°)0—30
Close ABDC (°) 32—62
EX
Open BBDC (°)42
Close ATDC (°)5
Valve clearance (mm {in})
IN 0.22—0.28 {0.0087—0.011} [Engine cold]
EX 0.27—0.33 {0.0107—0.0129} [Engine cold]
LUBRICATION SYSTEM
Ty p e Force-fed type
Oil pressure (reference value)
[oil temperature: 100°C {212°F}]
(kPa {kgf/cm
2
, psi} [rpm])
337—591 {3.44—6.03, 49.0—85.8}
[3,000]
Oil pump
Type Trochoid gear type
Relief valve opening
pressure
(reference value)
(kPa {kgf/cm
2
, psi}
420—520 {4.28—5.30, 60.9—75.4}
Oil filter
Type Full-flow, paper element
Bypass pressure
(kPa {kgf/cm
2
, psi})
80—120 {0.82—1.22, 11.6—17.4}
Oil
capacity
(approx.
quantity)
Total (dry engine) (L {US qt, lmp qt}) 4.6 {4.9, 4.0}
Oil replacement (L {US qt, lmp qt}) 3.9 {4.1, 3.4}
Oil and oil filter
replacement
(L {US qt, lmp qt}) 4.3 {4.5, 3.8}
COOLING SYSTEM
Ty p e Water-cooled, Electromotive
Coolant capacity (approx. quantity) (L {US qt, lmp qt}) 7.5 {7.9, 6.6}
Water
pump
Type Centrifugal, V-ribbed belt-driven
Thermostat
Type Wax, bottom-bypass
Opening
temperatur
e
(°C {°F}) 80—84 {176—183}
Full-open temperature (°C {°F}) 97 {207}
Full-open lift (mm {in}) 8.0 {0.31} or more
Radiator Type Corrugated fin
Cooling system cap
Cap valve
opening
pressure
(kPa {kgf/cm
2
, psi})
93.2—122.6 {0.95—1.25, 13.5—17.8}
Cooling fan
Type Electric
Number of blades 5
Outer
diameter
(mm {in}) 360 {14.2}
Fan motor
output
(W) 120