| Suzuki Engine >> INTAKE MANIFOLD MODS IMPROVE COOLING |
Intake Manifold Modification Improves Cooling On
Suzuki 1.3L Engines
The AERA Technical Committee has recently become aware of a repair procedure on 1985-92 Suzuki 1.3L intake manifolds to improve engine cooling. Beginning in June 1992, a revised intake manifold went into production to supplement engine cooling. The change, effective VIN Code #JS4JC31C-N4102470 also involves a revised thermostat, which is not interchangeable with the older design.
It is possible to modify the older (1985-92) intake manifolds to take advantage of the revised thermostat and provide more effective engine cooling. The modification involves enlarging the water port opening to 1.890 and the thermostat mounting counterbore to 2.224. Refer to the illustrations below to
assist in the machining of the intake manifold.
The revised thermostat now incorporates a rubber O ring on the outside diameter to provide a more effective seal. There are currently two thermostats available, Part #17670-56B00 for 180 degree Fahrenheit opening, and Part #17670-56B10 for 190 degree opening.
The AERA Technical Committee
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