TwinTurbo.NET: Nissan 300ZX forum - Please read.
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Subject Please read.
     
Posted by ZTurboFan on July 18, 2011 at 8:06 PM
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In Reply To Timing posted by nikko7mge on July 18, 2011 at 09:48 AM
     
Message The picture doesn't tell you anything.

It definitely doesn't tell you the belt slipped nor does it in any way suggest that your belt has slipped. There is no way to conclude that the DS cam is "obviously" way off...it is only "obviously" way off if this was your attempt at resetting the timing. Just wanting to correct this mis-information before you panic and think for certain it's all messed up. Your picture does not tell us anything to that end.

But, it tells me you don't understand how the timing works - and so it is good you're asking some questions. The fact that you have compression in all cylinders (if you actually tested them all) tells you the timing is correct or very near correct.

Now, as supermario680 has said, once the engine has been rotated after the belt is installed, you will find that the marks don't just all line up when you take the timing covers off. Chances are, you'll never ever see them all lined up ever again. It doesn't work that way. Those marks are used in conjunction with a new timing belt to make it easy for you to set the timing belt properly.

Your picture only shows 2 of the cam gear marks. There are more. ;-) And I assure you nothing much lines up with anything at this point...the other mark you've circled is not even related to the timing belt, it's not at all the mark on the crank gear. So it's just that you don't realize that none of those things mean anything at this point in the game.

If you've actually cranked the car, and you've actually got compression, then your timing belt is set properly or very close to properly. If it were set incorrectly, by a little bit, you'd see it in your compression numbers. If it were off, a lot, you'd have bent a valve during your compression test and you'd have no compression in some or several holes. From the information you've presented, your timing is set properly and is not your problem.

You pretty much only require spark, fuel and compression for that engine to run. So something is missing.

Bottom line, your car will not make proper compression numbers if your timing belt was seriously off.

While you can take all the covers off and reset the timing using the marks, I can assure you that you've presented no information to suggest that is currently the solution to why your car does not run. You've only presented a picture that means nothing, and compression numbers that are good which means the exact opposite of what you think is wrong.

     
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