Mazda 2006 MX-5 - Timing Chain, Chain Tensioner Construction [Lf]

MECHANICAL
01–10–13
01–10
TIMING CHAIN, CHAIN TENSIONER CONSTRUCTION [LF]
E5U011012040N01
• A silent chain (link grounding type) type has been adopted for the timing chain to reduce tapping noise caused
by matching each sprocket.
• Engine oil inside the engine front cover lubricates the timing chain and each sprocket. The pin part of the timing
chain is nitrite-treated to improve abrasion resistance.
Timing Chain Specification.
• Oil pressure type chain tensioner has been adopted for the timing chain tensioner. The tension of the timing
chain is maintained constant, using the oil pressure and the spring force in the chain tensioner.
• The oil pressure type chain tensioner consists of the following parts: Piston spring, which depresses the
tensioner arm, check ball which maintains pressure to the tensioner arm.
End Of Sie
item Specification
Pitch size (mm {in}) 8 {0.32}
CAMSHAFT SPROCKET
CHAIN TENSIONER
CHAIN GUIDE
PIN
PITCH SIZE
TIMING CHAIN
CRANKSHAFT SPROCKET
TENSIONER ARM
E5U110ZT5006
OIL SUPPLY HOLE
CHECK BALL
PISTON SPRING
PISTON
RACK
RATCHET
RATCHET SPRING
CROSS-SECTION
HOLE FOR A RATCHET LOCK
E5U110ZT5019