Crankshaft

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Category: Engine Mechanical

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Revision as of 05:04, 25 December 2008 Ddgonzal (Talk | contribs) <- Previous diff		Revision as of 05:11, 25 December 2008 Ddgonzal (Talk | contribs) Next diff ->
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	* 82mm (3.23 in.) stroke: A15		* 82mm (3.23 in.) stroke: A15
		+	[http://datsun1200.com/modules/myalbum/photo.php?lid=17133 http://datsun1200.com/modules/myalbum/photos/thumbs/17133.jpg]
	= Misc =		= Misc =
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	= Identification =		= Identification =
-	* A14, scalloped crank throws	+	* A13 low deck, scalloped crank throws
-	*: [http://datsun1200.com/modules/myalbum/photo.php?lid=3949 http://datsun1200.com/modules/myalbum/photos/thumbs/3950.jpg] [http://datsun1200.com/modules/myalbum/photo.php?lid=3949 http://datsun1200.com/modules/myalbum/photos/thumbs/3950.jpg]	+	*: [http://datsun1200.com/modules/myalbum/photo.php?lid=17135 http://datsun1200.com/modules/myalbum/photos/thumbs/17135.jpg] [http://datsun1200.com/modules/myalbum/photo.php?lid=17136 http://datsun1200.com/modules/myalbum/photos/thumbs/17136.jpg]
		+
		+	* A14, scalloped crank throws (H8940)
		+	*: [http://datsun1200.com/modules/myalbum/photo.php?lid=3949 http://datsun1200.com/modules/myalbum/photos/thumbs/3950.jpg] [http://datsun1200.com/modules/myalbum/photo.php?lid=3949 http://datsun1200.com/modules/myalbum/photos/thumbs/3950.jpg] [http://datsun1200.com/modules/myalbum/photo.php?lid=14241 http://datsun1200.com/modules/myalbum/photos/thumbs/14241.jpg] [http://datsun1200.com/modules/myalbum/photo.php?lid=14535 http://datsun1200.com/modules/myalbum/photos/thumbs/14535.jpg] [http://datsun1200.com/modules/myalbum/photo.php?lid=17137 http://datsun1200.com/modules/myalbum/photos/thumbs/17137.jpg]
		+
		+	* A14
		+	*: [http://datsun1200.com/modules/myalbum/photo.php?lid=8966 http://datsun1200.com/modules/myalbum/photos/thumbs/8966.jpg] [http://datsun1200.com/modules/myalbum/photo.php?lid=8967 http://datsun1200.com/modules/myalbum/photos/thumbs/8967.jpg] [http://datsun1200.com/modules/myalbum/photo.php?lid=11418 http://datsun1200.com/modules/myalbum/photos/thumbs/11418.jpg]
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	Discussion: [http://datsun1200.com/modules/newbb/viewtopic.php?topic_id=37775&forum=1 JTS Cranks]		Discussion: [http://datsun1200.com/modules/newbb/viewtopic.php?topic_id=37775&forum=1 JTS Cranks]
-	[http://datsun1200.com/modules/myalbum/photo.php?lid=5538 http://datsun1200.com/modules/myalbum/photos/thumbs/5538.jpg] [http://datsun1200.com/modules/myalbum/photo.php?lid=7306 http://datsun1200.com/modules/myalbum/photos/thumbs/7306.jpg] [http://datsun1200.com/modules/myalbum/photo.php?lid=8478 http://datsun1200.com/modules/myalbum/photos/thumbs/8478.jpg] [http://datsun1200.com/modules/myalbum/photo.php?lid=8479 http://datsun1200.com/modules/myalbum/photos/thumbs/8479.jpg]	+	[http://datsun1200.com/modules/myalbum/photo.php?lid=5538 http://datsun1200.com/modules/myalbum/photos/thumbs/5538.jpg] [http://datsun1200.com/modules/myalbum/photo.php?lid=7306 http://datsun1200.com/modules/myalbum/photos/thumbs/7306.jpg] [http://datsun1200.com/modules/myalbum/photo.php?lid=8478 http://datsun1200.com/modules/myalbum/photos/thumbs/8478.jpg] [http://datsun1200.com/modules/myalbum/photo.php?lid=8479 http://datsun1200.com/modules/myalbum/photos/thumbs/8479.jpg] [http://datsun1200.com/modules/myalbum/photo.php?lid=8617 http://datsun1200.com/modules/myalbum/photos/thumbs/8617.jpg] [http://datsun1200.com/modules/myalbum/photo.php?lid=9665 http://datsun1200.com/modules/myalbum/photos/thumbs/9665.jpg]
	[[Category:Engine Mechanical]]		[[Category:Engine Mechanical]]

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Revision as of 05:11, 25 December 2008

The crankshaft is interchangeable between early A12, A12GX, late A12, late A13 and A12A. Only the flywheel bolts differ, after 1974 using metric bolts. Stroke comes in four sizes:

• 70mm (2.76 in.) stroke: A12/A12A/A13(1980)
• 77mm (3.03 in.) stroke: A13(1974)/A14
• 82mm (3.23 in.) stroke: A15

Contents 1 Misc 2 Part Numbers 3 Identification 4 Lightened Crankshaft

Misc

Also see: Bored And Stroked for crankshaft modifications you can perform at home.

Apparently there are two forgings of crankshaft:

• Heavy duty
• Light weight: thinner straight sided counterweights that also have small scollops out of them. This may be the Datsun Competition crank.

• Twin-carb engine (A12GX, A12T and A14T) crankshafts are the same as a standard engines.
• 1974-up cranks use metric flywheel bolts. Early engines used British threads. See A Engine Redesign
• Front bolt, that holds the front pulley on, is:
  • Part Number: 12309-78200 ($4.58)
  • M16 x 1.50 (fine) pitch
  • 15mm diameter
  • 27mm long
  • The head is ?mm hex and about 15 mm thick.
  • Torque specification: 15-16 kg/m (108-116 ft. lb.)

Part Numbers

• 12200-H8500 CRANKSHAFT ASSY B310 A12S, A13S
• 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

Old Numbers:

• 12200-H1000 ASSY-CRANKSHAFT 1 A12 MANUAL - $624.02
• 12200-H1001 CRANKSHAFT 1 A12 -671 12 12200-H1000 superceded
• 12200-H1000 CRANKSHAFT 1 A12 0671- 2 12200-H1001 superceded
• 12200-H5000 CRANKSHAFT 1 A12 0572- 2 12200-H1000 $624.02

BEARING SET

• 12212-H1000 SET-BEARING US 1.00MM 1 A12 -
• 12207-M7201 SET-BEARING STD 1 A12 - 12207-H1000 $71.58
• 12207-H1000 SET-BEARING STD 1 A12 -
• 12208-H1000 SET-BEARING US 0.20MM 1 A12 -
• 12209-H1000 SET-BEARING US 0.25MM 1 A12 -
• 12210-H1000 SET-BEARING US 0.50MM 1 A12 -
• 12211-H1000 SET-BEARING US 0.75MM 1 A12 -

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"

SEAL, Front

• 13042-18000 SEAL-OIL CRANKSHAFT FRONT 1 A12 - superceded
• 13510-H1000 SEAL-OIL CRANKSHAFT FRONT (NOK) 1 A12 0271- 2 13042-18000 $7.24

SEAL, Rear

• 12279-18000 SEAL-OIL CRANKSHAFT REAR 1 A12 - $81.18
• 12279-18010 SEAL-OIL CRANKSHAFT REAR (NDK) 1 A12 0271- 2 12279-18000 NLA
• 12279-H1000 SEAL-OIL CRANKSHAFT REAR (NOK) 1 A12 0271- $81.18

PILOT BUSHING

• 32202-18000 BUSHING-PILOT 1 A12 MANUAL - $3.98

SLINGER

• 12302-18000 THROWER-OIL CRANKSHAFT 1 A12 - $1.57

PULLEY

• 12316-30000 KEY-WOODLUF 5X16 2 A12 - $1.13
• 12303-H1001 PULLEY-CRANKSHAFT 1 A12 0272- 0 12303-18002 $37.66
• 12303-18002 PULLEY-CRANKSHAFT 1 A12 - superceded
• 12308-H1000 WASHER-PULLEY BOLT 1 A12 - $1.29
• 12309-78200 BOLT-CRANK PULLEY 1 A12 - $5.73

FLYWHEEL BOLTS

• 12315-H1001 BOLT-FLY WHEEL 6 A12 MANUAL - $4.38
• 12315-H1000 BOLT-FLY WHEEL 6 A12 AUTOMATIC - $3.51
• 12330-20300 PILOT-CONVERTER 1 A12 AUTOMATIC - $18.66
• 12333-20300 PLATE-CRANK CONVERTER 1 A12 AUTOMATIC - $9.44

Identification

• A13 low deck, scalloped crank throws

  

• A14, scalloped crank throws (H8940)

  

• A14

  

Lightened Crankshaft

Discussion: JTS Cranks

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