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<blockquote data-quote="Dirk" data-source="post: 2162506" data-attributes="member: 214658">How do I know if my timing chain is installed correctly. The truck starts and drives but is slugish. I rebuilt the engine 2 years ago and has never been as good as new. I just took off the timing cover and here is what i see. With #1 piston at tdc and the dist rotor pointing to the 8 mark (#1 connector) I see my timing gears as so. Crank gear dot is at 12 oclock position.cam gear is at the 12 0clock position. (If this is incorrect would it even start?)Any Ides, before i change the timing chain.This is a 1997 GMC 1 ton crew cab 5.7 vortec. at breakin the vortrc seemed to run good. shortly after it ran doggish It passed Immissions and inspection with flyin colors. it runs and drives and has recently been giving a p1345 code and will now not pass immisions untill i get the code to go away. Whe n I rebuilt the engine I reused the double chain and gear set cause it looked more durable, but I now think that was a mistake. I have the new one and its going in this weekend. any experience with this is appreciated.</blockquote>

[QUOTE="Dirk, post: 2162506, member: 214658"] How do I know if my timing chain is installed correctly. The truck starts and drives but is slugish. I rebuilt the engine 2 years ago and has never been as good as new. I just took off the timing cover and here is what i see. With #1 piston at tdc and the dist rotor pointing to the 8 mark (#1 connector) I see my timing gears as so. Crank gear dot is at 12 oclock position. cam gear is at the 12 0clock position. (If this is incorrect would it even start?) Any Ides, before i change the timing chain. This is a 1997 GMC 1 ton crew cab 5.7 vortec. at breakin the vortrc seemed to run good. shortly after it ran doggish It passed Immissions and inspection with flyin colors. it runs and drives and has recently been giving a p1345 code and will now not pass immisions untill i get the code to go away. Whe n I rebuilt the engine I reused the double chain and gear set cause it looked more durable, but I now think that was a mistake. I have the new one and its going in this weekend. any experience with this is appreciated. [/QUOTE]

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