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Thread: X20XEV inlet cam problem - Valves hitting pistons?

  
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    Can't get timing belt on

    Got myself a X20XEV inlet camshaft.

    Fitted into the head, now putting the timing belt on. I set the cam back one tooth, then turned the crankshaft pulley to check it was clearing and no, the pistons hit the valve and knock the timing back to the original marks.

    I can turn it over fine when the cam is set to standard timing.

    Anyone else had this problem?

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    As daft as this sounds now mate, and please dont take it the wrong way, are you positive its an X20XEV cam?

    It shouldn't hit when its retarded back one I know that for sure.
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    Quote Originally Posted by Toms1989 View Post
    As daft as this sounds now mate, and please dont take it the wrong way, are you positive its an X20XEV cam?

    It shouldn't hit when its retarded back one I know that for sure.
    I did check that when I first realised it was hitting, had the right serial number on the cam anyway. Checked to make sure its not the original cam I put back in too, but its defo the right cam in there. Might just take it out and put the Z20LET one in if I cant solve this!

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    Quote Originally Posted by ChrisBoom View Post
    I did check that when I first realised it was hitting, had the right serial number on the cam anyway. Checked to make sure its not the original cam I put back in too, but its defo the right cam in there. Might just take it out and put the Z20LET one in if I cant solve this!
    Very odd

    Some people do half a tooth instead of a full tooth when retarding it, and still get similar gains to those on a full one.

    Give that a pop
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    The timing belt wont go on half tooth though will it?

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    Quote Originally Posted by ChrisBoom View Post
    then turned the crankshaft pulley to check it was clearing and no, the pistons hit the valve and knock the timing back to the original marks.
    ?!!? I dont think thats very likely, I think you have got something very wrong.

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    Yeah, im trying to think what I could of done wrong?

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    i had a problem similar to this when i was doing a head gasket on a VW golf. what had happened to me is that i had retarded the timing the wrong way.i.e set it on the wrong tooth if that makes sense. double check you are retarding it the right way... sorry pal thats the only advice i can give.

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    you should fit a x20xe cam out of redtop, im sure thats what the regel inlet cam is as i bought one from them and when it turned up it had X20XE stamped into it

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    Quote Originally Posted by RATCHET View Post
    i had a problem similar to this when i was doing a head gasket on a VW golf. what had happened to me is that i had retarded the timing the wrong way.i.e set it on the wrong tooth if that makes sense. double check you are retarding it the right way... sorry pal thats the only advice i can give.
    Will check that out, try it in a few places till it clears.

    Quote Originally Posted by M_IKE19 View Post
    you should fit a x20xe cam out of redtop, im sure thats what the regel inlet cam is as i bought one from them and when it turned up it had X20XE stamped into it
    Everywhere ive read online says X20XEV cam, from a 2.0 vectra etc.

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