Timing Chain

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Category: Engine Mechanical

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Revision as of 07:44, 18 December 2009 ddgonzal (Talk | contribs) <- Previous diff		Revision as of 09:04, 15 December 2011 ddgonzal (Talk | contribs) (->Alignment) Next diff ->
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	== Alignment ==		== Alignment ==
-	[http://datsun1200.com/modules/myalbum/photo.php?lid=5767 http://datsun1200.com/modules/myalbum/photos/thumbs/5767.jpg]	+	Check the cam gear alignment. It should be exactly like this:
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		+	[http://datsun1200.com/uploads/newbb/thumbs/174_4ee9b6405e4fc.jpg http://ddgonzal.members.winisp.net/getThumb.aspx?width=400&uri=http://datsun1200.com/uploads/newbb/thumbs/174_4ee9b6405e4fc.jpg]
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		+	If it is not, see [[Camshaft#Timing]].

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Revision as of 09:04, 15 December 2011

The Timing Chain drives the Camshaft.

Also see: Timing Cover

Contents 1 Overview 2 Replacement 2.1 Alignment 3 Part Numbers 3.1 Cam Sprocket 3.2 Chain 3.3 Tensioner 3.4 Crank Sprocket

Overview

• We have seen a couple of single link timing chains on A12, which is probably the original A10 single row chain. Insist on the factory specified double-chain, like Nissan did for later A10s.
• A rattle can be the trait of a stretched timing chain. Pinging/pinking has also often been mistaken for timing chain rattle

A-series engine has a short timing chain -- and with an automatic adjuster -- it rarely stretches or goes bad.

• 

Compare to the loooooong chaing used in the Nissan KA24E engine:

• 
• KA24 often has timing chain problems

Replacement

Alignment

Check the cam gear alignment. It should be exactly like this:

If it is not, see Camshaft#Timing.

http://datsun1200.com/modules/myalbum/photos/thumbs/3640jpg

Part Numbers

The timing chain kit (timing set) includes: Cam, Crank, Chain, Tensioner

• CLOYES Part # 94054S RockAuto.com $35.79
• CLEVITE/PERFECT CIRCLE Part # 92602

Cam Sprocket

(38 teeth)

• CLOYES Part # S47 RockAuto.com $9.41

Chain

• CLOYES Part # S478 RockAuto.com $9.40
• BECK/ARNLEY Part # 0240226

• $17.99, Partsamerica.com

Tensioner

• CLOYES Part # 95005 RockAuto.com $3.90

Crank Sprocket

19 teeth

• CLOYES Part # S477 RockAuto.com $8.87

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