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Thread: Is the CDTI 120 8v a NON interference engine?

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    confused Is the CDTI 120 8v a NON interference engine?

    Hiya, I heard that the 120hp, 8v engine, is a NON interference engine ( i.e. the valves don't come in contact with the pistons if there is a timing problem) but they weren't 100% sure, does anyone here know?

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    Full Member Big Sig's Avatar
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    As far as I know they are, but they break the rockers rather than bend the valves.
    Now I need a turbo to keep up!

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    Regular Member Maverick's Avatar
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    The 8v engine will destroy itself if the cam belt goes, the pistons will hit the valves.

    The 16v as said by Big Sig only breaks the rockers.

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    Regular Member alanv6's Avatar
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    The 120 is an interference engine it is possible for them to just crack the shim buckets, Replace them and re ajust the shims and all could be well. The 150 has rockers and tend to just break them

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    The 150 has rockers? Man what a step back

    Gazza4
    Insignia VX-Line Nav CDTI 170.

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    Regular Member alanv6's Avatar
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    They are small roller rockers sit on top of valves that the cam runs on, Same design as the z10xe, z12xe,z22xe, pug hdi motors..

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    Regular Member benny's Avatar
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    seems from 6 chassi on the rockers are up graded and they now dont break lol ive just done a 150 with six bent valves and broken guides and no broken rockers ....

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    Quote Originally Posted by alanv6 View Post
    They are small roller rockers sit on top of valves that the cam runs on, Same design as the z10xe, z12xe,z22xe, pug hdi motors..
    oh right m8, cheers life is a learning curve

    Gazz4
    Insignia VX-Line Nav CDTI 170.

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