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[Datsun 1200 encyclopedia]

Intake Manifold

Revision as of 04:20, 2 August 2015; view current revision
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Categories: Engine Mechanical | Manifold


Datsun 1200 was equipped with a round-port inlet manifold. USA got one with accessories fitings, while Japan, Canada and other countries got a plain intake manifold. For other A-series engines, manifolds differ by country and year.

Contents

Datsun 1200

Datsun 1200 was equpped with a round-port, dry, original bolt-patten inlet manifold. It looks like the Datsun 1000 manifold but it slanted 2 degrees different. USA manifolds came with extra fittings, while Japan, Canada and other countries got a plain manifold.

24971.jpg 24972.jpg

21212.jpg 21213.jpg 21214.jpg
Plain: only fittings are for PCV and one port (seen here with a plug)

New bolt-pattern VS original bolt-pattern
982.jpg
Datsun 1200 is always the original bolt pattern.

Intake and exhaust manifold are bolted together:
7892.jpg

A12 GX Engine

See A12 GX Engine for details on the GX intake manifold.

Sidedraught Comparo

A12GX vs A12T - Manifolds are nearly identical, but A12T has two extra fittings
24759.jpg
Center fitting (yellow arrow) is for IMS speed screw assembly.
Far left fitting (no arrow) is for power brake booster. NOTE: Early Nissan Cherry A12T may be missing this fitting

A12T/A12GX versus A14T port size
18268.jpg
A12T: 30x35 mm
A14T: 28x34 mm

A14T identification
24760.jpg

Datsun 1200 SSS

Datsun 1200 SSS was fitted with a New-Zealand built manifold and twin Dellorto carburetors.

Will not suit an A14 or A15 as those engines have oval inlet ports. These suit SSS motors with round inlet ports.

6260.jpg 5468.jpg

The inlet manifolds were Kiwi cast by Dennis Marwood to get them to match the head ports it is necessary to drill the mounting holes oversize to lift the manifold upwards to locate it better.

As of 2002, Autoquip Marketing in Auckland was still selling the manifolds.

Fitment with Exhaust Manifold

A12 intake and exhaust manifolds are a matched set -- they bolt together.

21214.jpg

Extractors

When using a tubular exhaust header (extractors) you can unbolt the intake from the exhaust manifold. Then fit shorter bolts to hold the Heat Riser block-off plate on. The A12 intake manifold comes with a block-off plate standard. This will fit over at least some big-tube header/extractors.
23090.jpg

Detached Manifold

Non-attaching exhaust manifold
21689.jpg

If fitting a detached Exhaust Manifold, the bottom of the intake will hit the exhaust. In this case you can either 1) source a different, more compatible intake or 2) grind the bottom for clearance and weld the opening shut.
24263.jpg

USA

  • 14003-H3901 MANIFOLD-INTAKE A12,AUTO 0771-
  • 14003-H3900 MANIFOLD-INTAKE A12,MANUAL 0771-
    21216.jpg
  • 14003-H1901 MANIFOLD-INTAKE A12,CALIFORNIA 0671-0771
  • 14003-H1900 MANIFOLD-INTAKE A12 EXHAUST -0571
  • 14003-H1000 MANIFOLD-INTAKE A12 CRANK [Canada]
    21215.jpg 21217.jpg


INTAKE GASKET

  • 14035-K7700 GASKET-MANIFOLD TO CYLINDER HEAD
    • 14035-18000 GASKET-MANIFOLD TO CYLINDER HEAD

OTHER

  • 14005-18001 GASKET-INTAKE TO EXHAUT MANIFOLD
    • 14005-18000 GASKET-INTAKE TO EXHAUT MANIFOLD
  • 08216-62210 STUD FIXING CARBURETOR 4
  • 08110-63210 BOLT INTAKE TO EXHAUT MANIFOLD 2
  • 01111-00032 BOLT 1
  • 08915-13610 WASHER-LOCK INTAKE TO EXHAUT MANIFOLD 3
  • 08911-10810 NUT CYLINDER HEAD TO MANIFOLD 9
  • 08915-13810 WASHER-LOCK 5
  • 14037-32200 YOKE-MANIFOLD 4

H19

H19 casting

25598.jpg 25599.jpg 25600.jpg

Oval Port Comparo

15739.jpg

Part Numbers

Gasket

GASKET-MANIFOLD TO CYLINDER HEAD

Round Port, No water ports, Original bolt pattern

  • 14035-18000 B10, B110, B210 A12S early, B210 A12S V late, B310 A12S V -7909 (Select Use)
  • 14035-18010 B310 A12S V -7909 (Select Use)

GX - Large Oval Port, Wet Intake

  • 14035-H2300 A12GX, A12T

Round Port, No water ports, New bolt pattern (both patterns?)

  • 14035-H7200 B310 A14S Van -7909 (Select Use)
  • 14035-H7210 B310 A14S Van -7909 (Select Use)
  • 14035-H7400 B310 Van 7910- (Select Use), supercedes H7200
  • 14035-H7410 B310 Van 7910- (Select Use), supercedes H7210

Round Port, Water Ports, New bolt pattern

  • 14035-H8501 B310 A12S S,K -8010, A13 8011-

Oval Port, Water Ports, New bolt pattern

  • 14035-H8901 B310 A14S S,K + AT -8010, A15S 8011-

Medium Oval Port, EFI Head

  • 14035-H9201 B310 A14E -8010, A15E

B210 Early

From the Nov 1976 JDM catalog

*Single Carb
* Gasket 14035-18000
14003-H1900 M/T w/o Mastervac
14003-H5101 A/T, M/T with Mastervac
*Twin Carb (A12T)
* Gasket 14035-H2300
14003-H5731 A12T
14003-H5732 A12T from '75-3 ^H5731

B210 Late

From the B210 Japanese Domestic Model parts catalog (Jul 1978)

1975 VB210 manifold (Showa 50)
th_S50_VB210_manifold-a.jpg th_S50_VB210_manifold-b.jpg th_S50_VB210_manifold-c.jpg

A12

14003-H5101 V

A12S

14003-H7400 S,K

A14

14003-H7200 V
14003-H7860 V

A14T

14003-M2450 A14T

F10

2nd generation Nissan Cherry.

Canada 1977 manifold A14
23746.jpg

Canada 1978 manifold A14
23747.jpg

B120

  • 14003-H1000 MANIFOLD-intake 1971-1974 [old bolt pattern, D-shaped heater gasket]
  • 14003-H5111 MANIFOLD-INTAKE 7510-7803 [old bolt pattern, triangular heater gasket]
  • 14003-H8110 MANIFOLD-INTAKE 7804-7907
  • 14003-G2561 MANIFOLD-INTAKE 7908-8109 [new bolt pattern, D-shaped heater gasket]
  • 14003-G2600 MANIFOLD-INTAKE 8110-8910
  • 14001-95W00 MANIFOLD-INTAKE 8910- [late-model water-heated carb]

Late Sunny Truck

1989-up B122 manifold: Round-port, wet style, new bolt-pattern, with extended-length carb flange.
7887.jpg

18698.jpg 18699.jpg 18697.jpg

19111.jpg 19113.jpg 19114.jpg

th_14001-95W00-1.jpg th_14001-95W00-2.jpg th_14001-95W00-3.jpg th_14001-95W00-4.jpg th_14001-95W00-5.jpg

New-bolt pattern (like an A14):
21288.jpg

th_manifold-late.jpg th_carburetor-late.jpg

B310

USA A14/A15 FEDERAL (except California)

  • 14003-H9500 MANIFOLD-INTAKE FED 0880- 0 14003-H9950 [1981-1982 small oval]
    21218.jpg
  • 14003-H9950 MANIFOLD-INTAKE FED -0780 2 14003-H9900
    • 14003-H9900 MANIFOLD-INTAKE FED 0879- 0 14003-H9100
  • 14003-H9100 MANIFOLD-INTAKE FED (EXC KFU) 0878-0779 0 14003-H7200
    14885.jpg 17233.jpg
  • 14003-H7202 MANIFOLD-INTAKE FED (EXC KFU) replaced 14003-H7200
    • 14003-H7200 MANIFOLD-INTAKE FED (EXC KFU)


FED KFU (A14 round port)
wet & dry types
19876.jpg

  • 14003-H7400 MANIFOLD-INTAKE FED(KFU) -0778
    14810.jpg
  • 14003-H9160 MANIFOLD-INTAKE FED(KFU) replaced 14003-H7400
    19797.jpg


USA CALIFORNIA A14/A15

  • 14003-H9160 MANIFOLD-INTAKE CAL A14 replaced 14003-H7400
  • 14003-H7400 MANIFOLD-INTAKE CAL A14 -0778
  • 14003-H9550 MANIFOLD-INTAKE CAL 0678-0779
  • 14003-H9950 MANIFOLD-INTAKE CAL -0780 superceeded 14003-H9900
    • 14003-H9900 MANIFOLD-INTAKE CAL 0879- replaced 14003-H9160


CANADA A14/A15

  • 14003-H7400 MANIFOLD-INTAKE A14 CAN -0778
  • 14003-H9160 MANIFOLD-INTAKE CAN 0879-

Vanette

C22 A15
th_C22_A15_intake-1.jpg th_C22_A15_intake-2.jpg th_C22_A15_intake-3.jpg

Custom/Aftermarket Manifold

Weber

A12 40 DCOE X1 99003.822 $165 @ Pierce Manifolds
A12 40 DCOE X2 99003.110 $250 @ Pierce Manifolds
A14 40 DCOE X1 99003.821 $215 @ Pierce Manifolds

99003.110-2T.jpg


Suppliers

  • TWM
  • Lynx single (PN M041) and dual (PN M042) DCOE/DHLA manifolds, dual SU manifold (M137)
  • TWM Induction intakes, carbs, etc
  • Ramflo
  • Lynx manifolds & Kay C (KC) adapter, Ramflo filters and Weber carbs
  • Ram intake downdraft manifold
  • Cannon Industries, apparently no longer in business
    5611 208th Ave S.W.
    Lynnwood, WA 98036
  • Redline Auto (Australia) makes single and dual DCOE manifolds and linkage, for A12 through A15 motors.
  • Same parts are available from Holley (Australia).
  • Stewart Wilkins GX manifold - only $260 AUD
  • eBay


CUSTOM MANIFOLDS
Steel manifold is difficult to make. You need to form steel to ovals to round to tapered out. When used with a turbocharger, Steel won't break and would be ported to your cylinder head.

  • "Mammi Motors" on the Peninsula in Victoria (40 mins from Melbourne).
    Ph: (03) 5977 7973
    • Steel manifold for maybe $250 for Weber 40s or 45s. ** They also do nice head work for around $300 which includes porting and 1600 exhaust valves


Aftermarket manifold finish quality can be really poor so check for flat flanges, port overlap. See Jason's Weber page.

Single Sidedraughts

3461.jpg80.JPG650.JPG 3503.jpg 7766.jpg

Cannon

Cannon manifolds are very low profile, so you can fit inlet trumpets or a tall air cleaner.

821 single DCOE oval port (A14/A15)
16231.jpg 16232.jpg
Thickness 2-13/16 to 2-10/16 inch

822 single-DCOE round port A12 (old bolt pattern)

Lynx

  • M041 MANIF DATSUN 1200 1 X DCOE/DHLA
  • M042 MANIF DATSUN 1200 2 X HS4 SU
  • M137 MANIF DATSUN 1200 2 X HS4 SU

D1000

Round port, pre-emission (no provision for PCV valve) for SU or Hitachi sidedraughts.

2272.jpg 5795.jpg 7359.jpg 18303.jpg

D1200 SU

Lynx D1200 for A12 engine, twin SU HS4 pattern, round port with crossover design.

Does this exist?

These do:

Lynx M042 MANIF DATSUN 1200 2 X HS4 SU 
Lynx M137 MANIF DATSUN 1200 2 X HS4 SU

D1200 Single

Lynx D1200 for A12 engine, single-DCOE pattern, round port with crossover design.

20476.jpg

Crossover puts the runners in firing order. lynxmanifolds.jpg


20477.jpg

12903_4b651727796b1.jpg

click for larger pic

174_4bca6a40bbb90.jpg

174_4bca6a475987a.jpg

174_4bca6a4ebe69f.jpg

174_4bca6a55bf5f4.jpg

D1200 Twin

Lynx D1200 (model M041) Round port for Twin Weber DCOE 40 style.

LynxD12002676.jpg

LynxD12002677.jpg

2676.jpg 2677.jpg

20480.jpg

20478.jpg

20479.jpg

SSS

Oval port twin DCOE manifold marked 'SSS'. This is not for the Datsun 1200 SSS model which had round port heads.

7599.jpg

Redline Australia

Redline Performance/Hardiman: http://www.redlineauto.com.au

12-18 Manifold 2 X DCOE fit Datsun A14/A15
I_12_18_TN.jpg

12-3060 Manifold Datsun 1 & 1.2L 2XDCOE Weber
I_12_3060_TN.jpg

12-3114 MANIFOLD DATSUN 120Y 1x40DCOE WEB
I_12_3114_TN.jpg

Rowland

Out of South Africa, Rowland made manifolds for the A14. http://www.manifolds.co.za

M028: Nissan 1400 36 Weber DCD down draught
* use gasket 14035-H7200
th_DGV-rowland-1.jpg th_DGV-rowland-3.jpg
th_DGV-rowland-2.jpg th_DGV-rowland-4.jpg
M030: Nissan 1400 Twin sidedraugt
* use gasket 14035-H7200

Warneford

16422.jpg 16423.jpg 16424.jpg

EFI

For EFI manifolds, see EFI Manifold