![[Datsun 1200 encyclopedia]](/wiki/upload/wiki.png)
| Revision as of 10:50, 3 January 2016 ddgonzal (Talk | contribs) (->Redesigned Block) <- Previous diff |
Current revision ddgonzal (Talk | contribs) (->Drain Plug) |
||
| Line 2: | Line 2: | ||
| = Identification = | = Identification = | ||
| - | A12 can be positively identified by looking for the engine Stamped ID - see main article: [[Engine ID Mark]] | + | A12 can be positively identified by looking for the engine Stamped ID. |
| - | http://datsun1200.com/modules/myalbum/photos/thumbs/770.jpg | + | See Main Article: [[Engine ID Mark]] |
| - | = Ventilation = | + | {{Album!|770}} |
| - | [http://datsun1200.com/modules/myalbum/photo.php?lid=18283 http://datsun1200.com/uploads/photos/18283.jpg] | + | |
| + | = Ventilation = | ||
| Under the block [[Breather Tubes|breather pipe]], this steel mesh separates out the oil vapor from [[PCV|crankcase ventilation]] air. | Under the block [[Breather Tubes|breather pipe]], this steel mesh separates out the oil vapor from [[PCV|crankcase ventilation]] air. | ||
| + | <br>{{Album|27096}} {{Album|18283}} | ||
| - | [http://i1085.photobucket.com/albums/j434/Daisblade/510%20waGoon/IMAG0845_zps9096b993.jpg http://i1085.photobucket.com/albums/j434/Daisblade/510%20waGoon/th_IMAG0845_zps9096b993.jpg] [http://i1085.photobucket.com/albums/j434/Daisblade/510%20waGoon/IMAG0847_zps903d3fb8.jpg http://i1085.photobucket.com/albums/j434/Daisblade/510%20waGoon/th_IMAG0847_zps903d3fb8.jpg] | + | [[Block_%26_Pan_Part_Numbers|11037-H1000]] NET-STEEL CRANK CASE A12/A13/A14/A15 |
| + | 08310-61214 SCREW-MACHINE (2) | ||
| + | 11038-H1000 PLATE-BAFFLE CRANK CASE A12/A13S | ||
| + | 11038-H6200 PLATE-BAFFLE CRANK CASE A14 EARLY H72 BLOCK | ||
| + | 11038-H9700 PLATE-BAFFLE CRANK CASE A14 LATE + A15 G34 BLOCK | ||
| = Dimensions = | = Dimensions = | ||
| Line 18: | Line 23: | ||
| Length is the same for a A-series engine blocks. | Length is the same for a A-series engine blocks. | ||
| - | [http://datsun1200.com/modules/myalbum/photo.php?lid=19202 http://datsun1200.com/uploads/thumbs/19202.jpg] | + | {{Album|19202}} |
| + | |||
| + | = Drain Plug = | ||
| + | {{AlbumC|15004|h=50|shape=27205|t=128|l=310}} | ||
| + | |||
| + | Buy at [http://www.datsun1200.asia/category/select/pid/9244 Bprojects] | ||
| + | [[Block & Pan Part Numbers|08931-30410]] PLUG-TAPER THREAD WATER DRAIN | ||
| + | * Fit all A-series block all years | ||
| + | * Size: 1/4 inch NPT | ||
| + | * Wrench Size: 14mm | ||
| + | * Overall length: 18.5mm | ||
| + | |||
| + | {{Album|28804|was=Photo\08931-30410.jpg\Datsun%201200/Parts}} {{Album|28805|was=Photo\08931-30410-.jpg\Datsun%201200/Parts}} | ||
| = Head Locating Dowels = | = Head Locating Dowels = | ||
| Starting with A12 engine for B210 and including later 1200, dowels were used to locate the [[Cylinder Head]]. | Starting with A12 engine for B210 and including later 1200, dowels were used to locate the [[Cylinder Head]]. | ||
| - | <img size=400>http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/wiki/head_dowels.jpg</img> [http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/wiki/head_dowels.jpg full] | + | {{Photo|head_dowels.jpg}} |
| 11053-73400 DOWEL-BLOCK TO HEAD 14 diameter 2 | 11053-73400 DOWEL-BLOCK TO HEAD 14 diameter 2 | ||
| Line 31: | Line 48: | ||
| The block has ~2.5 liter [[Radiator|coolant capacity]]. | The block has ~2.5 liter [[Radiator|coolant capacity]]. | ||
| + | |||
| + | {{Photo|n59975533yoshi_senna-img600x450-1211090038fvol0413765.jpg}} | ||
| == Original Block == | == Original Block == | ||
| Line 37: | Line 56: | ||
| H10 block castings | H10 block castings | ||
| - | <br>[http://datsun1200.com/modules/myalbum/photo.php?lid=19179 http://datsun1200.com/modules/myalbum/photos/thumbs/19179.jpg] | + | <br>{{Album|19179}} |
| == Redesigned Block == | == Redesigned Block == | ||
| Line 46: | Line 65: | ||
| H50 casting, from 1974-1985(?) Datsun 1200 | H50 casting, from 1974-1985(?) Datsun 1200 | ||
| - | <br>[http://datsun1200.com/modules/myalbum/photo.php?lid=20516 http://datsun1200.com/uploads/thumbs/20516.jpg] | + | <br>{{Album|20516}} |
| M79 casting, from 1985-1994 Datsun 1200 | M79 casting, from 1985-1994 Datsun 1200 | ||
| - | <br>[http://datsun1200.com/modules/myalbum/photo.php?lid=21287 http://datsun1200.com/uploads/thumbs/21287.jpg] [http://datsun1200.com/modules/myalbum/photo.php?lid=21288 http://datsun1200.com/uploads/thumbs/21288.jpg] | + | <br>{{Album|21287}} {{Album|21288}} |
| = Overbore = | = Overbore = | ||
| Line 68: | Line 87: | ||
| See main article: [[Connecting Rods]] | See main article: [[Connecting Rods]] | ||
| - | http://datsun1200.com/modules/myalbum/photos/thumbs/15725.jpg | + | {{Album!|15725}} |
| = Pistons = | = Pistons = | ||
| A12 engine came with dished pistons for approximately 9.0:1 compression ration. Standard bore size for the A12 or A13 block is 73mm/2.874". Pistons are cast. Nissan Competition does not recommend forged pistons for street use. | A12 engine came with dished pistons for approximately 9.0:1 compression ration. Standard bore size for the A12 or A13 block is 73mm/2.874". Pistons are cast. Nissan Competition does not recommend forged pistons for street use. | ||
| - | See main article: [[Piston]] | + | See Main Article: [[Piston]] |
| = Main Bearing Caps = | = Main Bearing Caps = | ||
| Line 86: | Line 105: | ||
| * D21 PICKUP with KA24E engine (10) | * D21 PICKUP with KA24E engine (10) | ||
| - | [[Category:Engine Mechanical]] | + | {{UploadPost|174_5ac95f2837b42.jpg|488014}} |
| + | |||
| + | [[Category:Engine Mechanical]]{{End}} | ||
Current revision
The A12 engine of the Datsun 1200 features a modern lightweight cast-iron cylinder block. For an overview of all A-series engines see Block Comparison.
Contents |
[edit]
Identification
A12 can be positively identified by looking for the engine Stamped ID.
See Main Article: Engine ID Mark
[edit]
Ventilation
Under the block breather pipe, this steel mesh separates out the oil vapor from crankcase ventilation air.
11037-H1000 NET-STEEL CRANK CASE A12/A13/A14/A15 08310-61214 SCREW-MACHINE (2) 11038-H1000 PLATE-BAFFLE CRANK CASE A12/A13S 11038-H6200 PLATE-BAFFLE CRANK CASE A14 EARLY H72 BLOCK 11038-H9700 PLATE-BAFFLE CRANK CASE A14 LATE + A15 G34 BLOCK
[edit]
Dimensions
A12 Deck Height is 189.1 mm. A10 engines are 10 mm shorter, and A14 is 15 mm taller. For more details see Block Comparison#Dimensions.
Length is the same for a A-series engine blocks.
[edit]
Drain Plug
Buy at Bprojects 08931-30410 PLUG-TAPER THREAD WATER DRAIN * Fit all A-series block all years * Size: 1/4 inch NPT * Wrench Size: 14mm * Overall length: 18.5mm
[edit]
Head Locating Dowels
Starting with A12 engine for B210 and including later 1200, dowels were used to locate the Cylinder Head.
11053-73400 DOWEL-BLOCK TO HEAD 14 diameter 2
[edit]
Cylinder Blocks
Also see: Block Comparison
The block has ~2.5 liter coolant capacity.
[edit]
Original Block
11010-H2300 A12 BARE BLOCK 73mm/2.87" bore size * running change replaced 11010-H1000
H10 block castings
[edit]
Redesigned Block
* 11010-H5000 A12 B120 From July 1973 (?) * 11010-G1600 A12 B120 From June 1975 (?) * 11010-G1618 A12 B120 7908-8503 * 11010-G1619 A12 B120 8504- (M79 casting)
H50 casting, from 1974-1985(?) Datsun 1200
M79 casting, from 1985-1994 Datsun 1200
[edit]
Overbore
The 1971-1973 A12, the one with the front distributor, can usually be bored to 76mm. This is the same as a stock A14 and will increase HP much more than going to high compression.
See main article: Bored And Stroked
[edit]
Crankshafts
A12 uses a forged crankshaft, so it is plenty strong -- even for 8500 RPM use.
Stroke: 70mm (2.76 in.)
For more details and part numbers, see Crankshaft
[edit]
Connecting Rods
Stock A-series rods are forged, and will last a lifetime in a stock or moderately upgraded performance engine. There is no need to use a heavier duty rod unless you are using a high boost turbo or supercharger, or revving higher than 8500 RPM.
See main article: Connecting Rods
[edit]
Pistons
A12 engine came with dished pistons for approximately 9.0:1 compression ration. Standard bore size for the A12 or A13 block is 73mm/2.874". Pistons are cast. Nissan Competition does not recommend forged pistons for street use.
See Main Article: Piston
[edit]
Main Bearing Caps
Also see: ARP
12293-18001 BOLT-MAIN BEARING CAP (10) L=72.5 <> 12293-01M00 * A12/A14/A15 engine (quantity 10) * L16, L18 and L20B engine (10) * 720,D21,S110 with Z20/Z22/Z24E/Z24I (10) * 910,S130 with L24/L28E (14) * B11, N10/N12 with E15/E16 (10) * D21 PICKUP with KA24E engine (10)
¤