timming chain

[twistable_deer]

hello, i have a 2002 sunfire gt with a 2.2 ecotech engine with 180,000 kms on it and i recently did a cylinder head job but now my timing is off, so i have to change the timing but my question is, should i just replace my timing chain with a new one, i drive my car hard and i do a lot of quick acceleration and i rev shifting but i do change my oil every five thousand kms and i also add lucas oil stabilizer.

thanks

 

[melsg5]

at that mileage replacing the chain and all tensioner components would be a good idea.

 

[twistable_deer]

what about the gears and the guides?

 

[melsg5]

the guides yes, the gears unless you see a chipped tooth or something else that doesnt look right should be ok

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[Roadrunner]

you might beable to get a conversion kit to a timing belt..I believe after 06 they switched it to belt driven .

 

[melsg5]

All Ecotecs use a chain

 

[Roadrunner]

All Ecotecs use a chain

ooh that's right..it was the opel X20XEV ecotec that was belt driven

 

[twistable_deer]

can someone give me a picture of an engine that's timed right, i don't know which way the intake cam should face (like the valves position), are the valves suppose to face down or up when the engine is in top dead center?

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[melsg5]

this is an article with the timing chain/cam relationship explained

http://www.enginebuildermag.com/Art...service_procedures_for_gm_22l_l61_ecotec.aspx

 

[Rob59]

Hello, This is my first post. Could some body please tell me if the 2003 2.2l ecotec is an interfernce engine. Thanks

 

[melsg5]

yes, did your timing chain break?