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| - | #REDIRECT [[DCH306#DCR306]] | + | For 1981 North American sunny models, the "new" [[DCH306]] carburetor - the Hitachi DCR306 -- is introduced |
| + | * Vacuum-controlled Secondary Throttle actuator added | ||
| + | * Replaceable fuel bowl sight-glass added | ||
| + | * Vented fuel bowl incorporated | ||
| + | |||
| + | == 1981 == | ||
| + | New type sight-glass introduced. This type is replaceable unlike previous versions. | ||
| + | <br>[http://datsun1200.com/modules/myalbum/photo.php?lid=23419 http://ddgonzal.members.winisp.net/getThumb.aspx?width=400&uri=http://datsun1200.com/uploads/photos/23419.jpg] | ||
| + | <br>Fuel bowl is now externally vented. This goes to a special 5-hose [[Charcoal Canister]]. The canister has a '''Vent Switching Valve''' which is open when the engine is not running, so that vapors from the fuel bowl can go directly to the charcoall filter. When the engine starts, vacuum from the intake manifold closes the VSV. | ||
| + | |||
| + | See main article: [[Carbon Canister]] | ||
| + | |||
| + | Altitude Compensator ports marked 1,2,3 | ||
| + | <br>[http://datsun1200.com/modules/myalbum/photo.php?lid=23418 http://ddgonzal.members.winisp.net/getThumb.aspx?width=400&uri=http://datsun1200.com/uploads/photos/23418.jpg] | ||
| + | <br>Vacuum-Secondary introduced | ||
| + | <br>4, 3, 2 are used on Altitude Compensator models | ||
| + | |||
| + | == 1982 == | ||
| + | [http://datsun1200.com/modules/myalbum/photo.php?lid=24053 http://ddgonzal.members.winisp.net/getThumb.aspx?width=400&uri=http://datsun1200.com/uploads/photos/24053.jpg] | ||
| + | <br>X, 2 are plugged; only used on Altitude Compensator models | ||
| + | |||
| + | [[Category:Fuel System]] | ||
Revision as of 09:13, 10 February 2012
For 1981 North American sunny models, the "new" DCH306 carburetor - the Hitachi DCR306 -- is introduced
- Vacuum-controlled Secondary Throttle actuator added
- Replaceable fuel bowl sight-glass added
- Vented fuel bowl incorporated
1981
New type sight-glass introduced. This type is replaceable unlike previous versions.
Fuel bowl is now externally vented. This goes to a special 5-hose Charcoal Canister. The canister has a Vent Switching Valve which is open when the engine is not running, so that vapors from the fuel bowl can go directly to the charcoall filter. When the engine starts, vacuum from the intake manifold closes the VSV.
See main article: Carbon Canister
Altitude Compensator ports marked 1,2,3
Vacuum-Secondary introduced
4, 3, 2 are used on Altitude Compensator models
1982
X, 2 are plugged; only used on Altitude Compensator models