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Engine Ticking, timing chain or lifters?

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Old Sep 13, 2012 | 10:15 AM
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close thread. no longer issue

Last edited by eeck392; Nov 28, 2012 at 10:16 AM.
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Old Sep 14, 2012 | 02:09 PM
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any help is appreciated, i am pretty frustrated at this point.
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Old Sep 14, 2012 | 02:23 PM
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This is all speculation, since I am not there to listen with a mechanic's stethoscope. You should think about getting on to poke around with it and see where the tick is originating from.

It seems there are 5 or 6 ticks per second, which is 300 - 360 per minute.
The engine idles at 690 rpm or so.
Each valve's rocker arm gets a jab from it's pushrod every 2 revolutions, or about 345 times per minute.

That makes me think it is most likely valve train related. (It doesn't seem to be the low knock of a rod.)

Last edited by ronjenx; Sep 14, 2012 at 02:47 PM.
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Old Sep 15, 2012 | 09:44 AM
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thanks, i appreciate the response. I am also thinking the same thing.
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Old Sep 15, 2012 | 10:04 AM
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if you have noise that gets worse as it warms up i would seriously look at oil pressure , it drops as the oil thins out with heat . could be indicative of a weak pump . put a mechanical gauge on it while its warm and see if the reading is within spec
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Old Nov 13, 2012 | 12:25 PM
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Default Same Noise

I know the last post was done a few months back but did you every take your Sahara in? If so what was the outcome? I have a 2007 Rubicon doing the same thing and from my initial research it seems to be a pretty expensive fix.
Thanks I appreciate it.

_cords
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