Engine block

(Difference between revisions)

Datsun 1200 encyclopedia | Recent changes | Edit this page | Page history | Switch to MediaWiki mode

Special pages Double redirects Broken redirects Disambiguation pages Log in / create account Preferences My watchlist Recent changes Upload file File list Gallery of new files User list Statistics Random page Orphaned pages Uncategorized pages Uncategorized categories Unused categories Unused files Wanted pages Wanted categories Most linked to pages Most linked to categories Articles with the most categories Most linked to images Articles with the most revisions Short pages Long pages New pages Oldest pages Dead-end pages All pages Prefix index List of blocked IP addresses and usernames Book sources Categories Export pages Version System messages Logs MIME search List redirects Popular pages Search

Printable version | Disclaimers | Privacy policy | Current revision
Category: Engine Mechanical

---

Revision as of 03:45, 12 January 2007 Ddgonzal (Talk | contribs) <- Previous diff		Current revision ddgonzal (Talk | contribs) (->Ventilation)
Line 1:		Line 1:
-	== Cylinder Blocks ==	+	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]].
-	* 11010-H2300 A12 BARE BLOCK 73mm/2.87" bore size	+
-	* 11010-H9960 A12A BARE BLOCK 75mm/2.95" bore size	+
-	* 11010-H6200 [1974] A13 BARE BLOCK 73mm/2.87" bore size	+
-	* 11010-H9700 A14/A15 BARE BLOCK 76mm/2.99" bore size	+
		+	= Identification =
		+	A12 can be positively identified by looking for the engine Stamped ID.
-	== Crankshafts ==	+	See Main Article: [[Engine ID Mark]]
-	* 12200-H8515 A12/A12A CRANKSHAFT 70mm/2.76" stroke	+
-	* 12200-H5720 A12 COMPETITION CRANKSHAFT 70mm/2.76" stroke	+
-	* 12200-H8915 A13/A14 CRANKSHAFT 77mm/3.03" stroke	+
-	* 12200-G3400 A15 CRANKSHAFT 82mm/3.23" stroke	+
		+	{{Album!|770}}
-	MAIN BEARING (#1/#5, SHELL THICKNESS)	+	= Ventilation =
-	<br>4 each required	+	Under the block [[Breather Tubes|breather pipe]], this steel mesh separates out the oil vapor from [[PCV|crankcase ventilation]] air.
-	* 12215-H2310 .0720"	+	<br>{{Album|18283}} {{Album|27096}}
-	* 12215-H2311 .0718"	+
-	* 12215-H2312 .0715"	+
		+	[[Block_%26_Pan_Part_Numbers|Part Numbers]]
		+	{{searchPart|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
-	MAIN BEARING (#2/#4, SHELL THICKNESS)	+	H97 baffle plate
-	<br>4 each required	+	<br>{{Album|30364}}
-	* 12231-H2310 .0720"	+
-	* 12231-H2311 .0718"	+
-	* 12231-12312 .0715"	+
		+	baffle plate bolts in rear portion of the engine block
		+	<br>{{UploadPost|174_67b163d1d47cf.jpg|498788}}
-	MAIN BEARING (CENTER, SHELL THICKNESS)	+	&#26085;&#29987; A&#22411; &#12502;&#12525;&#12483;&#12463;&#25563;&#27671;&#12496;&#12483;&#12501;&#12523;
-	<br>2 required	+
-	* 12247-H2310 .0720"	+
-	* 12247-H2311 .0718"	+
-	* 12247-H2312 .0715"	+
		+	= 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.
-	== Connecting Rods ==	+	{{Album|19202}}
-	4 of each required:	+
-	* 12100-H1000 A12 CONNECTING ROD 121.5mm/4.78" center-to-center	+
-	* 12100-18500 A12A CONNECTING ROD 121.5mm/4.78" center-to-center	+
-	* 12100-16200 [1974] A13 CONNECTING ROD 133mm/5.24" center-to-center	+
-	* 12100-17200 A14/A15 CONNECTING ROD 133mm/5.24" center-to-center	+
		+	= Drain Plug =
		+	{{AlbumC|15004|h=50|shape=27205|t=128|l=310}}
-	ROD BOLT	+	Buy at [http://www.datsun1200.asia/category/select/pid/9244 Bprojects]
-	The Datsun rod bolt is a true stretch bolt and should be torqued only once. New bolts should be installed at every disassembly. 8 each required:	+	[[Block & Pan Part Numbers|08931-30410]] PLUG-TAPER THREAD WATER DRAIN
-	* 12109-H1001 CONNECTING ROD BOLT	+	* Fit all A-series block all years
-	* 12112-H1000 CONNECTING ROD NUT	+	* 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}}
-	CONNECTING ROD BEARINGS	+	= Head Locating Dowels =
-	The -25720/-H2310 bearing shell produces the most desirable bearing clearance for racing purposes when applied to a standard size crankshaft. The other shells exist in order to obtain proper clearance when compensating for the variations in the crankshaft or connecting rod journals.	+	Starting with A12 engine for B210 and including later 1200, dowels were used to locate the [[Cylinder Head]].
-	8 each required:	+	{{Photo|head_dowels.jpg}}
-	* 12111-25720 .0590"	+
-	* 12111-25721 .0588"	+
-	* 12111-25722 .0585"	+
-	* 12111-25723 .0592"	+
-	* 12111-25724 .0583"	+
-	== Pistons ==	+	11053-73400 DOWEL-BLOCK TO HEAD 14 diameter 2
-	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".	+
		+	= Cylinder Blocks =
		+	Also see: [[Block Comparison]]
-	[[A12GX engine]] came with two kinds of pistons:	+	The block has ~2.5 liter [[Radiator|coolant capacity]].
-	* dished for low-gas (regular octane) engine	+
-	* flat-top for high-gas (high octane) engine	+
		+	{{Photo|n59975533yoshi_senna-img600x450-1211090038fvol0413765.jpg}}
-	A12/A13 FACTORY CAST FLAT-TOP PISTONS	+	== Original Block ==
-	Cylinder wall thickness should be checked by sonic testing when increasing initial bore size in excess of 1 mm/.03937". Standard bore size for the A12 or A13 block is 73mm/2.874".	+	11010-H2300 A12 BARE BLOCK 73mm/2.87" bore size
-	* 12010-H2361 73MM/2.874" PISTON	+	* running change replaced 11010-H1000
		+	H10 block castings
		+	<br>{{Album|19179}}
-	PISTON RING SET	+	== Redesigned Block ==
-	* 12033-H6200 RING SET FOR 12010-H2361	+	* 11010-H5000 A12 [[B120]] From July 1973 (?)
-	* 12010-12364 73.5/2.894" PISTON	+	* 11010-G1600 A12 B120 From June 1975 (?)
-	* 12035-H6200 RING SET FOR 12010-H2364 1	+	* 11010-G1618 A12 B120 7908-8503
-	12010-H2366 74mm/2.913" PISTON 4	+	* 11010-G1619 A12 B120 8504- (M79 casting)
-	y:Engi12037-H6200 RING SET FOR 12010?	+
-	H2366 1	+
-	12010-H2310 73MM/2.874" PISTON Similar to 12010-12361 except for valve reliefs	+
-	for increased piston-to-valve clearance. 4	+
-	12033-H6200 RING SET FOR 12010-	+
-	H2310	+
-	[[Category:Engine Mechanical]]	+	H50 casting, from 1974-1985(?) Datsun 1200
-	Summary:	+	<br>{{Album|20516}}
-	Summary:	+
-	Summary:	+	M79 casting, from 1985-1994 Datsun 1200
		+	<br>{{Album|21287}} {{Album|21288}}
		+
		+	= 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]]
		+
		+	= 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]]
		+
		+	= 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]]
		+
		+	{{Album!|15725}}
		+
		+	= 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]]
		+
		+	= Main Bearing Caps =
		+	Also see: [[ARP]]
		+
		+	[[Block & Pan Part Numbers|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)
		+
		+	{{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 1 Identification 2 Ventilation 3 Dimensions 4 Drain Plug 5 Head Locating Dowels 6 Cylinder Blocks 6.1 Original Block 6.2 Redesigned Block 7 Overbore 8 Crankshafts 9 Connecting Rods 10 Pistons 11 Main Bearing Caps

Identification

A12 can be positively identified by looking for the engine Stamped ID.

See Main Article: Engine ID Mark

Ventilation

Under the block breather pipe, this steel mesh separates out the oil vapor from crankcase ventilation air.
Album 18283 Album 27096

Part Numbers
11037-H1000ᴳ 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

H97 baffle plate
Album 30364

baffle plate bolts in rear portion of the engine block
Post 498788

日産 A型 ブロック換気バッフル

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.

Album 19202

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

Album 28804 Album 28805

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

Cylinder Blocks

Also see: Block Comparison

The block has ~2.5 liter coolant capacity.

Original Block

11010-H2300 A12 BARE BLOCK 73mm/2.87" bore size 
* running change replaced 11010-H1000

H10 block castings
Album 19179

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
Album 20516

M79 casting, from 1985-1994 Datsun 1200
Album 21287 Album 21288

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

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

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

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

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)

Post 488014 

---

Edit this page | Discuss this page | Page history | What links here | Related changes




Datsun 1200 encyclopedia | About Datsun 1200 Club | Switch to MediaWiki mode