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At first glance, it looks like other A-series carburetors with automatic choke ([[DCH306]]-series), but it has large electrical connectors | At first glance, it looks like other A-series carburetors with automatic choke ([[DCH306]]-series), but it has large electrical connectors | ||
- | <br><img size=400>http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/wiki/a15_C22-a.jpg</img> | + | <br>{{Photo!|a15_C22-a.jpg}} |
The most obvious feature may be this extended flange, with electric valve on one end, and water-contact area on other end | The most obvious feature may be this extended flange, with electric valve on one end, and water-contact area on other end | ||
- | <br><img size=400>http://datsun1200.com/uploads/photos/10188.jpg</img>[http://datsun1200.com/modules/myalbum/photo.php?lid=10188 album] | + | <br>{{Album|10188}} {{PhotoH|14001-95W00-2.jpg|Datsun%201200/wiki|275}} |
- | + | ||
- | <img size=400>http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/wiki/14001-95W00-2.jpg</img> [http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/wiki/14001-95W00-2.jpg full] | + | |
ID - behind sight-glass | ID - behind sight-glass | ||
- | <br>http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/wiki/DFC306-46e_.jpg | + | <br>{{Photo!|DFC306-46e_.jpg}} |
== Connector 1 == | == Connector 1 == | ||
Lower Valve | Lower Valve | ||
- | <br><img size=368>http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/wiki/4431_7_.jpg</img> <img size=400>http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/wiki/4431_4_.jpg</img> | + | <br>{{Photo!|4431_7_.jpg}} {{Photo!|4431_4_.jpg}} |
- | Mixture Control Solenoid (MCS) Valve | + | Mixture Control Solenoid (MCS) Valve |
- | http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/wiki/4431_6_a.jpg | + | <br>{{Photo!|4431_6_a.jpg}} |
== Connector 2 == | == Connector 2 == | ||
IACV-FICD SOLENOID VALVE | IACV-FICD SOLENOID VALVE | ||
Idle Air Control Valve - [[FICD]] | Idle Air Control Valve - [[FICD]] | ||
- | http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/wiki/4431_6_b.jpg | + | {{Photo!|4431_6_b.jpg}} |
Electric Choke | Electric Choke | ||
- | <img size=400>http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/wiki/DFC306-46d.jpg</img> | + | {{Photo!|DFC306-46d.jpg}} |
= ECU = | = ECU = | ||
Factory Nissan 1200 ECU controls the electronic feedback carb via input from O2 sensor. | Factory Nissan 1200 ECU controls the electronic feedback carb via input from O2 sensor. | ||
- | [http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/wiki/22604-95W00-1.jpg http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/wiki/th_22604-95W00-1.jpg] [http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/wiki/22604-95W00-2.jpg http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/wiki/th_22604-95W00-2.jpg] [http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/wiki/22604-95W00-3.jpg http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/wiki/th_22604-95W00-3.jpg] [http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/wiki/22604-95W00-4.jpg http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/wiki/th_22604-95W00-4.jpg] [http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/wiki/22604-95W00-5.jpg http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/wiki/th_22604-95W00-5.jpg] | + | {{Photo|22604-95W00-1.jpg}} {{Photo|22604-95W00-2.jpg}} {{Photo|22604-95W00-3.jpg}} {{Photo|22604-95W00-4.jpg}} {{Photo|22604-95W00-5.jpg}} |
22604-95W00 | 22604-95W00 | ||
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ECU takes input signals from engine including water temp and O2 sensor and adjust the air/fuel mixture via the carburetor solenoid. | ECU takes input signals from engine including water temp and O2 sensor and adjust the air/fuel mixture via the carburetor solenoid. | ||
- | [http://i297.photobucket.com/albums/mm219/ddgonzal/sightings/forum/manifold-late.jpg http://i297.photobucket.com/albums/mm219/ddgonzal/sightings/forum/manifold-late.jpg] | + | {{Photo|manifold-late.jpg|sightings/forum}} |
Carburetor electrical connector includes the automatic choke wire and Feedback Solenoid wires | Carburetor electrical connector includes the automatic choke wire and Feedback Solenoid wires | ||
- | <br>[http://i297.photobucket.com/albums/mm219/ddgonzal/sightings/forum/carburetor-late.jpg http://i297.photobucket.com/albums/mm219/ddgonzal/sightings/forum/carburetor-late.jpg] | + | <br>{{Photo|carburetor-late.jpg|sightings/forum}} |
= Specifications = | = Specifications = |
Revision as of 02:36, 8 March 2017
Hitachi DFC306 is an electrically controlled feedback carburetor, used on A12 engine for Sunny Truck beginning October 1989.
Contents |
Overview
DFC306 is the carburetor on 1989-1994 JDM A12 engines. It requires a special water heated Intake Manifold.
At first glance, it looks like other A-series carburetors with automatic choke (DCH306-series), but it has large electrical connectors
The most obvious feature may be this extended flange, with electric valve on one end, and water-contact area on other end
ID - behind sight-glass
Connector 1
Lower Valve
Mixture Control Solenoid (MCS) Valve
Connector 2
IACV-FICD SOLENOID VALVE Idle Air Control Valve - FICD
Electric Choke
ECU
Factory Nissan 1200 ECU controls the electronic feedback carb via input from O2 sensor.
22604-95W00 FBM-N13 <4-digit serial number>
ECU Control
ECU takes input signals from engine including water temp and O2 sensor and adjust the air/fuel mixture via the carburetor solenoid.
Carburetor electrical connector includes the automatic choke wire and Feedback Solenoid wires
Specifications
Model: DFC306-26 Air horn entrance (inside diameter - outside diameter) 54-59 mm Primary nozzle system (primary) secondary side (secondary) Zenith Stromberg protruding type Throttle Bore (mm) 26/30 Venturi (mm) 23/27 Venturi in diameter (inner - outer diameter) (mm) - 13-16 Venturi small diameter (inner - outer diameter) (mm) 8-16 7-10 Nozzle diameter (inner diameter - outside diameter) (mm) 2.1-3.0 2.8-4.0 92 main jet size 120 (# engraved) Diameter 43 80 slow jet (# engraved) Economizer diameter bleed 95 140 (# engraved) 90 main jet diameter correction (# engraved) - Slow diameter air bleed correction for 230 (# engraved) - Main air bleed size 70 60 (# engraved) 155 slow air bleed size 80 (# engraved) All 閉角 degree throttle valve 9 20 (degrees) Float chamber fuel pressure (kg/cm2) 0.24 Float level standard (from the top of the float chamber) (mm) 21 Idle port (mm) 1.6 Opening fast idle (dimension G) 1.35 (0.84) (degrees) Auto choke choke system Two-stage diaphragm complete explosion 爆開 complete degree automatic choke at low temperatures * (dimension R) 25 (1.66) (degrees) At high temperatures 33 (2.48) (degrees) Choke set temperature (℃) 16
Manifold
Water-heated carburetor requires a special manifold.
1989-up Datsun 1200 manifold with extended-length carb flange
Applications
DFP306-5
DFC306-3 16010-11M07 Nissan B11 Sunny E15S.MT-(GL,LT).F5 8410-8412 DFC306-3A 16010-11M08 Nissan B11 Sunny E15S.MT-(GL,LT).F5 8412- DFC306-4 16010-12M07 Nissan N12 Pulsar E15S.AT 8403-8412, B11 E15S.AT 8410-8412 DFC306-4A 16010-12M08 Nissan N12 Pulsar E15S.AT 8412-8604, B11 E15S.AT 8412- DFC306-4B 16010-12M09 Nissan N12 Pulsar E15S.AT 8604- DFC306-5 16010-52A00 B12 Sunny E15S.2WD.MT 8509-8601 DFC306-5A 16010-52A01 B12 Sunny E15S.4WD.MT 8509-8601, E15S.MT 8601-8604 DFC306-5B 16010-52A02 B12 Sunny E15S.MT 8604-8709 DFC306-6 16010-52A10 B12 Sunny E15S.2WD.AT 8509-8601 DFC306-6A 16010-52A11 B12 Sunny E15S.4WD.AT 8509-8601, E15S.AT 8601-8604 DFC306-6B 16010-52A12 B12 Sunny E15S.AT 8604-8709 DFZ306-31 16010-47A05 VB11 AD Van E15S.MT 8805- DFC306-46 16010-19B00 Nissan K10 Micra MA12S (MT.F5)
DFC306-46
K10 Micra carburetor
Vanette
C22 Vanette used a similar feedback carburetor, which may be a DFC306 or a DCZ306.