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EG-20
2. Spark Plug
D Long-reach type iridium-tipped spark plugs are used.
D Long-reach type of spark plugs allows the area of the cylinder head to receive the spark plugs to be made
thick. Thus, the water jacket can be extended near the combustion chamber, which contributes to cooling
performance.
D Iridium-tipped spark plugs are used to realize a 100,000 km (62,500 mile) maintenance-free operation.
By making the center electrode of iridium, the same ignition performance as the platinum-tipped type
spark plug and excellent of durability have been realized.
Iridium Tip
"
A
Specification
DENSO
NGK
Plug Gap
ENGINE - 1NZ-FE ENGINE
Long-Reach Type
SK16R11
IFR5A-11
mm (in.)
1.1 (0.043)
Conventional Type
281EG73
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Do you have a question about the 1NZ-FE and is the answer not in the manual?
Questions and answers
1nz timing marks
What cause the chain to rattle over hill and when start
The chain in a Toyota with the 1NZ-FE engine may rattle due to a stretched timing chain. This usually occurs after 100,000 miles of use and can result in rattling noises, especially during cold starts or under load such as going over hills.
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