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[Datsun 1200 encyclopedia]

Exhaust Manifold

From Datsun 1200 Club

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Categories: Engine Mechanical | Manifold

Datsun 1200 uses a single-outlet cast-iron exhaust manifold. It has a two-bolt flange to the Exhaust Piping. They can be replaced with tubular headers.

Contents

Overview

The standard Datsun 1200 exhaust manifold features a Heat Riser to deflect hot exhaust towards the bottom of the intake manifold. Since it bolts to the intake, it requires a matching Intake Manifold.

See main article: Heat Riser

GX exmani for Datsun 1200 is a divorced type -- not connected to the intake manifold

Divorced type is used with a water-heated Intake Manifold.

Heating the intake plenum is important for part-throttle performance/driveability and fuel-economy. For more information, see Heat Riser.

Gasket

Dual-outlet exhaust manifolds (Twin Carb engines + A15E) used a flat packing (gasket).

A12 made from 1990- used a different manifold that used a flat packing (A12 with 3-bolt flange). See #95W Late 1200.
95Wc.jpg

For all other single-outlet exhaust manifolds, there is no packing (gasket) between exhaust manifold and exhaust pipe. Instead the pipe has a flaring that seals it.
SAM_0269.jpg

If the original exhaust pipe is not available, an aftermarket donut gasket can be fitted to plain 1.5 inch exhaust pipe. This is a donut seal (compression type) such as used by MGs and Austins and 1960s American cars. It is made of an asbestos-like material.
exh_seal.jpg

Alternatively, an exhaust shop can weld a flange to the exhaust pipe and a flat gasket can be used.

22644.jpgAlbum 22644

Single Outlet

Early A12s used a two-bolt exhaust pipe flange. A14/A15 and late A12 have three-bolt exhaust pipe flange.

2-Bolt Outlet

Datsun 1200

B110 manifold has heat riser for bottom of intake manifold.

  • 3-bolt stove gasket
  • Datsun 1000 manifold is similar, but with a smaller 30mm outlet. A12 engine has 34mm outlet. Also the exhaust pipe joint is reshaped for performance increase.

B110 | B10
22135.jpgAlbum 22135 22136.jpgAlbum 22136

14004-H1030 MANIFOLD-EXHAUST 1 A12 CRANK -273 USA,JDM NLA 
14002.jpgAlbum 14002
14004-H1930 MANIFOLD-EXHAUST 1 A12 EXHAUST USA - superceded 
14004-H3950 MANIFOLD-EXHAUST 1 A12 0671 USA - superceded 
14004-H3930 MANIFOLD-EXHAUST 1 A12 -273 USA 14004-H3950 superceded
14004-H3931 MANIFOLD-EXHAUST 1 A12 0373- USA 14004-H3930 $203.14 
22134.jpgAlbum 22134
26853.jpgAlbum 26853
14004-H1031 MANIFOLD-exhaust, with heat control (from '73-3) JDM, also B120 -7908
08213-82810 STUD (fixing manifold to exhaust tube and cylinder head) (11) 
14064-H5001 STUD B120 7510-8910
14005-18000 GASKET (fixing intake manifold to to exhaust manifold)

7892.jpg 21212.jpg 21214.jpg 21217.jpg 22133.jpg

08213-82810 STUD FIXING EXHAUST MANIFOLD TO EXHAUST 2
14005-18001 GASKET-INTAKE TO EXHAUT MANIFOLD 14005-18000
14005-18000 GASKET-INTAKE TO EXHAUT MANIFOLD
08110-63210 BOLT INTAKE TO EXHAUT MANIFOLD 2	 
01111-00032 BOLT	
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	
14035-K7700 GASKET-MANIFOLD TO CYLINDER HEAD 14035-18000
14035-18000 GASKET-MANIFOLD TO CYLINDER HEAD	
14022-18000 SPRING-HEAT CONTROL THERMS
14025-85061 KEY-HEAT CONTROL VALVE
14026-18001 WEIGHT-COUNTER VALVE
14027-36700 WASHER-HEAT CONTROL
14047-36700 SPRING-STOPPER HEAT CONTROL

The optional heated-air cleaner duct clamps on (later manifolds used a bolt-on heated air duct):
exhaust-manifold-2.jpg exhaust-manifold-1.jpg exhaust-manifold-3.jpg

exmani-1.jpg exmani-2.jpg exmani-3.jpg

Datsun 1000

Heat Riser flap was used starting in mid-1967. B10 manifold look like the 1200 manifold, but the heat riser area is smooth, without the two vertical standups of the 1200 exmani.
22136.jpgAlbum 22136

1000 Coupe used a dual-outlet exhaust manifold (see #Double-Outlet section below)
22131.jpg 14857.jpg

14000-18000 ASS'Y-MANIFOLD, intake & exhaust (up to E/# A10-200838)
14000-25700 ASS'Y-MANIFOLD, intake & exhaust Coupe
14003-18000 MANIFOLD-intake 
14003-18001 MANIFOLD-intake (from E/# A10-200839) (exc. Coupe)
14005-18000 GASKET (fixing intake manifold to to exhaust manifold)
14004-18000 MANIFOLD-exhaust
14004-18050 ASS'Y-MANIFOLD, exhaust [has heat riser flap]
* 82-16828 STUD (fixing manifold to exhaust tube) 2 
* 82-13828 STUD (fixing manifold to exhaust tube) 2 (from E/# A10-59060)
14004-25700 MANIFOLD-exhaust Coupe
* 82-16822 STUD (fixing manifold to exhaust tube) 3 Coupe
14035-18000 GASKET-manifold to cylinder head

B210 JDM

14064-H5000 STUD (2)
14064-H5001 STUD (from '74-1) (2)
14004-H1031 MANIFOLD-exhaust [same as 1973 B110] A12 1974/1975 & A12 Van
 14005-18000 GASKET-INT to EXT manifold
14004-H7431 MANIFOLD-EXHAUST A14S Van
14004-H8231 MANIFOLD-EXHAUST A12,A14S Coupe,Sedan
 14097-U9500 GASKET-STOVE
14064-U6700 STUD-EXHAUST TUBE (3)

1974 A13

Larger passages
EGR port
4-bolt square heat riser (stove) gasket
14004-H6230 MANIFOLD-EXHAUST
14004-H6232 MANIFOLD-EXHAUST code-5

Mid B120

B120 7907-8910 2-bolt outlet, similar to the old B10 manifold.

22142.jpg th_exmani-a.jpg
14064-H5001 STUD (2)
14004-G2536 MANIFOLD-EXHAUST 7908-8109
 14005-18000 GASKET-INTAKE TO EXHAUST MANIFOLD 7908-8109
14004-G2561 MANIFOLD-EXHAUST 8110-8910
 14005-G2560 GASKET-INTAKE TO EXHAUST MANIFOLD 8110-8910

H74

* heat riser, 4-bolt
* 2-bolt outlet

MANIFOLD-EXHAUST
14004-H7431 B210 JDM A14S Van
14004-H7431 B310 JDM A14S.Van -7909
14004-H7432 C120 A14 1078-0679 > 14004-H7431

3-bolt Single Outlet

When swapping from a 2-bolt outlet to 3-bolt outlet you will also need a new exhaust pipe flange.
22644.jpgAlbum 22644

HEAT-RISER TYPE (bolts to inlet manifold)
H72, H74, H82, H95, H99, G25
DIVORCED TYPE (does not bolt to inlet manifold)
* #H89 #H84 #H85 plain manifold
* #H92 Adds EGR tube on front
* #H86 #A12A_USA Adds EAI ports on runners #1 and #4
* #A15 (C22) Adds provision for O2 sensor
* #95W_Late_1200 plain manifold with 02 Sensor
* #LDV plain manifold 4-into-1 style

95W Late 1200

A12 late style (8910-) 3-bolt with O2 sensor with heat shield. Uses an actual gasket.

14004-95W00 MANIFOLD-EXHAUST SB B120 
14004-95W01 MANIFOLD-EXHAUST LB B120 
14064-11M00 STUD (3)

15860.jpg 15861.jpg th_95Wb.jpg

full full

16590-G5100 COVER-MANIFOLD
* Heat shield with hot-air tube connector and cutout for the Oxygen sensor
26066.jpg

A14 USA

1975 A14
14004-H7230 MANIFOLD-EXHAUST -0775 B210 USA
14064-U6700 STUD FIXING EXHAUST MANIFOLDTO EXHAUST (3)
New heat riser (stove) design borrowed from 610/620/710
larger exhaust ports (?)
heat shield added
3 stud outlet
14097-U9500 GASKET-STOVE 0476-
superceded 14097-U6701


1976-1978
14004-H7330 MANIFOLD-EXHAUST A14(USA) 0875-0776
14004-H7235 MANIFOLD-EXHAUST A14(USA) 0876-
14004-H7330 MANIFOLD-EXHAUST A14(CAN) 0875-0777
14004-H7235 MANIFOLD-EXHAUST A14(CAN) 0877-
14004-H7239 MANIFOLD-EXHAUST A14(FED)(GFU) 1276- B210
19876.jpg 19797.jpg 


B310 FED KFU
14004-H7239 MANIFOLD-EXHAUST A14 FED(KFU) -0779
14004-H9900 MANIFOLD-EXHAUST A14 FED(KFU) 0879-
14097-U9500 GASKET-STOVE 
14064-U6700 STUD-EXHAUST TUBE FIXING (3)
B310 except FED KFU
14004-H7235 MANIFOLD-EXHAUST A14/A15 -0779
14004-H7235 MANIFOLD-EXHAUST A14 CAN 0879-0780
14004-H99O0 MANIFOLD-EXHAUST A14,A15 FED 0879-0780
14004-H9910 MANIFOLD-EXHAUST A14,A15 CAL 0879-0780
14004-H9501 MANIFOLD-EXHAUST A14,A15 USA 0880-
14097-U9500 GASKET-STOVE 
14064-U6700 STUD-EXHAUST TUBE FIXING (3)

A12A Canada

with heat riser
14004-H7239 MANIFOLD-EXHAUST A12A B310 CAN 
14064-U6700 STUD FIXING EXHAUST MANIFOLDTO EXHAUST (3)
14097-U9500 GASKET-STOVE

A12A USA

without heat riser
14004-H9900 MANIFOLD-EXHAUST A12A B310 FED 0879-0780
14004-H9910 MANIFOLD-EXHAUST A12A B310 CAL 0879-0780
14004-H9501 MANIFOLD-EXHAUST A12A B310 USA 0880-
14064-U6700 STUD-EXHAUST TUBE FIX (3)

H95 with air injection tubes
22143.jpgAlbum 22143

B210 JDM

without heat riser
14004-H7431 MANIFOLD-EXHAUST A14S.V B210
14064-U6700 STUD-EXHAUST TUBE (3)
with heat riser
14004-H8231 MANIFOLD-EXHAUST A14S,A12S Coupe,Sedan B210
14064-U6700 STUD-EXHAUST TUBE (3)
14097-U9500 GASKET-STOVE
th_A14IntakeExhaust.jpg

B310 JDM

14064-U6700 STUD-EXHAUST TUBE (3)
without heat riser
14004-H8501 MANIFOLD-EXHAUST A12S, A14S S,K+AT -8010 B310
14004-H8660 MANIFOLD-EXHAUST A13S, A15S 8011- B310
with 4-bolt heat riser
14004-H7431 MANIFOLD-EXHAUST A14S.V -7909 B310
with 3-bolt heat riser
14004-G2536 MANIFOLD-EXHAUST VAN 7910-

H84

H84 A14T twin-carb manifold without heat riser, 5-boss

14004-H8400 MANIFOLD-EXHAUST 

18760.jpg
10704.jpg 10705.jpg 10706.jpg 10707.jpg 10708.jpg

H86

H89-style but with added Air Injection ports on front and rear runners

14001-H8660 JPN B310 A13s,A15S

24781.jpgAlbum 24781 A13exmani1.jpg A13exman21.jpg

H89

H89 A14/A15 manifold without heat riser
21689.jpg

This is probably
14004-H8501 MANIFOLD-EXHAUST A12S, A14S S,K+AT -8010 B310
14004-H8660 MANIFOLD-EXHAUST A13S, A15S 8011- B310

A15

A15 Late without heat riser, with EGR port, with undrilled O2 boss, and additional undrilled boss to rear of Port 4
18700.jpg

C22 Vanette A15
th_a15_C22-EX-a.jpg th_a15_C22-EX-b.jpg th_a15_C22-EX-c.jpg

H92

14004-H9200 MANIFOLD-EXHAUST A14E
21832.jpg 21846.jpg 21847.jpg

14004-H9260 Exhaust Manifold A15E dual-outlet (cast 'H926')
25592.jpg 25593.jpg 25594.jpg

LDV

Late 1400 LDV "bakkie" manifold appears to be a 1-into-4 design

26022.jpgAlbum 26022 1400_engine.jpg

Dual Outlet

Shorty Headers

"Shorty" tubular headers which are a direct replacement for the cast iron version

See main article: Headers

th_shorty-1.jpg th_shorty-2.jpg th_shorty-3.jpg

Datsun 1000 Coupe

KB10 used a dual-outlet manifold with(?) a standard heat riser to keep the bottom of the intake manifold warm.

14000-25700 ASS'Y-MANIFOLD, intake & exhaust Coupe
14003-18000 MANIFOLD-intake (same as early non-Coupe)
14004-25700 MANIFOLD-exhaust Coupe
14005-18000 GASKET (fixing intake manifold to to exhaust manifold)
82-16822 STUD (fixing manifold to exhaust tube) (3) Coupe

22131.jpgAlbum 22131 14857.jpgAlbum 14857

A12 GX

A12GX Engine used a dual-outlet manifold that is not connected to the intake manifold (has no heat riser).

14004-H2300 MANIFOLD-exhaust
08213-82800 STUD-fixing exhaust tube 3

12371_4bb2a0bf36ee6.jpgUpload click to view 26910.jpgAlbum 26910

3947.jpg 8995.jpg9261.jpg 9262.jpg 10728.jpg 11077.jpg 11086.jpg 21884.jpg 22132.jpg

25465.jpg

2585.jpg

9764_4a2ba6141c6da.jpgUpload click to view 9764_4a2e4569e9fbb.jpgUpload click to view 9764_4a2e45a04b14c.jpgUpload click to view 9665_4bdeb5ec2e45a.jpgUpload click to view 9665_4bde9c7c55582.jpgUpload click to view

27133.jpgAlbum 27133 27134.jpgAlbum 27134 27135.jpgAlbum 27135

A15E Manifold

A15E

14004-H9260 MANIFOLD-EXHAUST A15E 
20711-H9200 GASKET-EXHAUST 

4084.jpg

Vanette

14004-H7432 C120 A14 1078-0679 oval port, heat riser > 14004-H7431
14004-G2556 C120 A14 0779-0581 round port, heat riser > 14004-G2536
14004-G5200 GC22 A15S 0986-

with Oxygen Sensor
A15_vanette_nz.jpg

Forklift Manifold

See Main Article: Forklift#1200 Parts Donor
1679.jpg

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