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Datsun 1200s use a typical paper-type engine air filter in a real metal air cleaner.

1 Overview
2 Tightening
3 Removal
- 3.1 Hot/Cold Air Cleaner
4 Also See
5 Anti-Icing
- 5.1 Automatic Temperature Control
6 Late A-engine
7 Mid-model Pickup
8 Late Sunny Truck
9 B310
10 N13
11 Vanette
12 Part Numbers
13 Photo Index

Overview

North America (Canada)
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Datsun 1200 Warm weather type air cleaner:
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Datsun 1200 Cold Region type (hot/cold type) air cleaner -- has a hose connector for hot air. This is discussed below in Anti-Icing
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Datsun 1200 Cold Region type 2
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Datsun 1200 Cold Region A.T.C. (automatic) type air cleaner is identified by the round flap actuator
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1977 VB210 Japan is similar to Datsun 1200:

Tightening

Turn the wingnut down until it contacts the air cleaner lid. Then tighten the wing nut 3 turns:

Removal

The air cleaner must be removed to inspect the carburetor or vacuum hoses.

Cleaner Removal

IMPORTANT: If you have a warm/cold air cleaner, first remove the hoses as outlined below
Twist and pull the thick breather hose straight up out of the rocker cover
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Remove the two 10mm-headed bolts from the side of the air cleaner away from the engine
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Remove the one 10mm-headed bolt from the bracket next to the rocker cover
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Untwist the wingnut holding the air cleaner top on. Carefully remove the washer & rubber piece
lift the lid off and remove the air filter element
lift the air cleaner body straight up

Hot/Cold Air Cleaner

If you have an warm/cold air type air cleaner do this first before attempting to remove the air cleaner:

Grab the hot air tube just underneath the air cleaner snout. Carefully twist the hot air tube to loosen it. If it won't twist, unscrew the clamp first. Be careful not to damage the cardboard tubing. After it is loose, pull it down off the bottom of the air cleaner snout. Leave the bottom of the tube connected, only separate it from the air cleaner
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If you have the ATC type (vacuum controlled) air cleaner do this:

Twist and pull the ATC vacuum hose out of the intake manifold port
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Disconnect the vacuum hose at the rear of the air cleaner
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Also See

Also see:
* GX Air Cleaner
* Air Intake Systems for upgrades/alternatives, including cold air intakes

Anti-Icing

To prevent ice up in winter, air cleaners for temperate markets have a temperature control. For example, this Japan-market air cleaner draws hot air to prevent icing (carb icing can over at temperatures several degreesn freezing):

The hot air is drawn up from the exhaust manifold

Automatic Temperature Control

Some JDM 1200s and 1972 USA models use an Automatic Temperature Control air cleaner for year-round constant inlet temperature. This protects again carb icing, but also regulates the temperature for consistent jetting. For details, see ATC.

Late A-engine

From 1976, B210 (except VB210) changed to a front bracket type air cleaner. This was to provide more clearance for the EGR valve.

Thin bracket bolts to the very last manifold bolt
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Likewise, B310 Wagon, Sedan & Coupe changed to a front bracket type air cleaner, while VB310 Van stayed similar to the 1200 air cleaner. This applied to A12/A12A as well as A14/A15 engines.

B310
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B310 with TVV bracket on Air Cleaner Stay
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Mid-model Pickup

Ute/Sunny Truck 1979.August-1989.October

Uses the new front-bolt air cleaner -- like the late B210.

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Late Sunny Truck

1989 October brought a new intake manifold so the air cleaner now mounts with thin bracket at rear, and double-bracket at front.

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With air duct

Includes ATC air temp regulator

New type 3-bolt Support bracket
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Charcoal Canister
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B310

27672-H8505 air intake duct

N13

Remote filter, or could modify to fit sidedrafts.

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Vanette

Factory A-series top-hat for use with remote filter.

See main article: Vanette Air Cleaner

Part Numbers

16574-H1001 SUPPORT-AIR CLEANER,FRONT A12
* 08363-61214 M6 MACHINE SCREW WITH LOCK WASHER
[Stud for intake manifold: M8]

16573-H1001 SUPPORT-AIR CLEANER, REAR A12
* 08363-61214 M6 MACHINE SCREW WITH LOCK WASHER (4)

B110 originally used instead of the machine screws:
* 08120-61210 M6 BOLT
* 08915-13610 M6 WASHER-LOCK
* 08915-43610 M6 WASHER-PLAIN

H10 Rear Stay post

H10 Stays (supports) used by
* B110
* B120 -7907
* B210 1973-1975
* VB210 
* B310.VAN(-7909)

B120 Sunny Truck changed to new style intake manifold in 1979

Mid B120 7908-8910 {CHANGE TO NEW STYLE INTAKE MANIFOLD]
AIR CLEANER SUPPORT, FRONT
* 16574-W8501 7908-8109 [same as B310.Van(8011-8109)]
* 16574-G1900 8110-8910 [same as B310.Van(8110-)]
* 77720-89919 BOLT (for Front Support)
AIR CLEANER SUPPORT, REAR
* 16573-W8500 7908-8109 [same as B310.Van(7910-8109)]
* 16573-G1901 8110-8910 [same as B310.Van(8110-)]
* 08120-61262 MACHINE SCREW WITH LOCK WASHER (4)

1981 October 16573-G1901 Support has large clip for EGR VVT valve

Late B120 8910- {CHANGE TO MANIFOLD]
AIR CLEANER SUPPORT [2-BOLT]
* 16574-95W00 8910- [bolts to rearmost manifold bolt]
* 77720-89919 BOLT
AIR CLEANER SUPPORT [3-BOLT]
* 16573-95W00 8910- [bolts to front of  manifold]
* 08120-61262 MACHINE SCREW WITH LOCK WASHER (3)

1989 October 16573-95W00 for new intake manifold thin bracket bolts to last manifold bolt