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| PISTON RING SET | PISTON RING SET | ||
| - | * 12033-H6200 RING SET FOR 12010-H2361 | + | |
| - | * 12010-12364 73.5/2.894" PISTON | + | |
| - | * 12035-H6200 RING SET FOR 12010-H2364 1 | + | [[Ca12033-H6200 RING SET FOR 12010? |
| - | 12010-H2366 74mm/2.913" PISTON 4 | + | H2361 1 |
| - | y:Engi12037-H6200 RING SET FOR 12010? | + | 12010-12364 73.5/2.894" PISTON 4 |
| - | H2366 1 | + | tegory12035-H6200 RING SET FOR 12010? |
| + | H2364 1 | ||
| + | 12010-H2366 74mm/2.913" PISTON 4 | ||
| + | :Engin12037-H6200 RING SET FOR 12010? | ||
| + | H2366 1 | ||
| 12010-H2310 73MM/2.874" PISTON Similar to 12010-12361 except for valve reliefs | 12010-H2310 73MM/2.874" PISTON Similar to 12010-12361 except for valve reliefs | ||
| - | for increased piston-to-valve clearance. 4 | + | for increased piston-to-valve clearance. 4 |
| 12033-H6200 RING SET FOR 12010- | 12033-H6200 RING SET FOR 12010- | ||
| H2310 | H2310 | ||
| - | + | e Mechanical]] Summary: | |
| - | [[Category:Engine Mechanical]] | + | |
| - | Summary: | + | |
| - | Summary: | + | |
| - | Summary: | + | |
Revision as of 03:46, 12 January 2007
Contents |
Cylinder Blocks
- 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
Crankshafts
- 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
MAIN BEARING (#1/#5, SHELL THICKNESS)
4 each required
- 12215-H2310 .0720"
- 12215-H2311 .0718"
- 12215-H2312 .0715"
MAIN BEARING (#2/#4, SHELL THICKNESS)
4 each required
- 12231-H2310 .0720"
- 12231-H2311 .0718"
- 12231-12312 .0715"
MAIN BEARING (CENTER, SHELL THICKNESS)
2 required
- 12247-H2310 .0720"
- 12247-H2311 .0718"
- 12247-H2312 .0715"
Connecting Rods
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
ROD BOLT
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:
- 12109-H1001 CONNECTING ROD BOLT
- 12112-H1000 CONNECTING ROD NUT
CONNECTING ROD BEARINGS
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.
8 each required:
- 12111-25720 .0590"
- 12111-25721 .0588"
- 12111-25722 .0585"
- 12111-25723 .0592"
- 12111-25724 .0583"
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".
A12GX engine came with two kinds of pistons:
- dished for low-gas (regular octane) engine
- flat-top for high-gas (high octane) engine
A12/A13 FACTORY CAST FLAT-TOP PISTONS
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".
- 12010-H2361 73MM/2.874" PISTON
PISTON RING SET
[[Ca12033-H6200 RING SET FOR 12010?
H2361 1
12010-12364 73.5/2.894" PISTON 4
tegory12035-H6200 RING SET FOR 12010?
H2364 1
12010-H2366 74mm/2.913" PISTON 4
- Engin12037-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 e Mechanical]] Summary: