Diesel Timing Belt / (Non)Interference Engine & Chevy Warranty - Page 2

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Thread: Diesel Timing Belt / (Non)Interference Engine & Chevy Warranty

  1. #11
    gyrfalcon is offline [OP]
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    Quote Originally Posted by GotDiesel? View Post
    This is an interference engine. If the belt breaks ,it will bend valves and in others words motor rebuild or replacement . It will not be good at all . Every Diesel that I have worked on has been an interference motor. All TDI are Interference motors.
    The editor of a diesel magazine says he's going to check with a GM engineer. Apparently he seems to think I have a point.

    How can it be an interference motor if it has valve reliefs on the pistons? (The TDI doesn't have relieved pistons from what I understand)





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  3. #12
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    From pictures I have seen the US Cruze diesel has a red line at 5000 rpm, the diesel in the Aussie Cruze has a red line at 4,500 rpm.
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  4. #13
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    Quote Originally Posted by Aussie View Post
    From pictures I have seen the US Cruze diesel has a red line at 5000 rpm, the diesel in the Aussie Cruze has a red line at 4,500 rpm.
    I have gotten mine to 5000 RPM, but power levels off quickly after 4500.
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  6. #14
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    Hope it isn't but it probably is. Treat it like it is. Better safe than sorry.
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  7. #15
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    Quote Originally Posted by gyrfalcon View Post
    How can it be an interference motor if it has valve reliefs on the pistons?
    I'm no engineer, but my guess would be extremely tight tolerances.

    Take a look at the picture under the "Performance" paragraph in XR's blog. There is literally no room in the cylinder except in the piston well when the piston is at TDC. It almost looks as if the valve reliefs are needed just to clear the valves at TDC. I just don't see this as being a non-interference engine.

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  8. #16
    2nd Gear ChevyMgr's Avatar
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    It is an interference and very susceptible to damage!
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  9. #17
    gyrfalcon is offline [OP]
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    Quote Originally Posted by ChevyMgr View Post
    It is an interference and very susceptible to damage!
    I'm not disagreeing, but can I get some sort of facts to back that up?

  10. #18
    gyrfalcon is offline [OP]
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    Quote Originally Posted by ChevyMgr View Post
    It is an interference and very susceptible to damage!
    I'm not disagreeing, but can I get some sort of facts to back that up? We know for sure the gas cruze is interference but it's possible the diesel is not.

    Quote Originally Posted by PanJet View Post
    I'm no engineer, but my guess would be extremely tight tolerances.

    Take a look at the picture under the "Performance" paragraph in XR's blog. There is literally no room in the cylinder except in the piston well when the piston is at TDC. It almost looks as if the valve reliefs are needed just to clear the valves at TDC. I just don't see this as being a non-interference engine.
    It could be, but I like facts.

    Where is XR's blog? (edit: reading the link now.. thought it was your signature :P )
    Last edited by gyrfalcon; 01-28-2014 at 05:41 PM.

  11. #19
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    Quote Originally Posted by gyrfalcon View Post
    I'm not disagreeing, but can I get some sort of facts to back that up?
    Service manual does not state which one it is. But the Training class covered this heavily. You could become a GM tech and take the training course. Sorry that's all I got for now.
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  12. #20
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    Here is an article I found through a google search. Take it for what it is.

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