Stampede Posted May 2, 2010 Report Share Posted May 2, 2010 I'm getting a very strange, and I mean strange, never heard before noise coming from the top end by the cams. It's a cross between a rattling, clicking, fluttering, and a early 90's diesel noise. It Doesn't do it all the time, it doesn't most after a good 15 mins or so, but when you drive it hard it's fine. I'm thinking it's the cam phaser, but I have never heard one going bad. What do you guys think? Thanks. Quote Link to comment Share on other sites More sharing options...
Farkas Posted May 2, 2010 Report Share Posted May 2, 2010 Do these have a timing chain? If so, the guides or tensioners may be worn and need replaced.. but that wouldn't explain why it goes away after driving it hard. It's hard to diagnose without hearing it personally. If it does it immediately on a startup and gradually goes away, it could be an oil pressure issue in the head.. possibly sludging? I'm just stabbing in the dark here Quote Link to comment Share on other sites More sharing options...
darkside87t Posted May 3, 2010 Report Share Posted May 3, 2010 i have seen 2.4l skip timing from not changing the oil,, Quote Link to comment Share on other sites More sharing options...
darkside87t Posted May 3, 2010 Report Share Posted May 3, 2010 i have seen 2.4l skip timing from not changing the oil,, the timing tensioner runs off oil pressure.. Quote Link to comment Share on other sites More sharing options...
Guest Removed Posted May 3, 2010 Report Share Posted May 3, 2010 the upper guide for the chain is broken, causing the noise Quote Link to comment Share on other sites More sharing options...
darkside87t Posted May 3, 2010 Report Share Posted May 3, 2010 the upper guide for the chain is broken, causing the noise good call......fix now b4 its too late! Quote Link to comment Share on other sites More sharing options...
Stampede Posted May 3, 2010 Author Report Share Posted May 3, 2010 Gearhead, I'll pull the smaller cover off, and inspect the guide. If that's not it, how much will you charge me, if I stop by for you to listen to the noise? Thanks. Quote Link to comment Share on other sites More sharing options...
Guest Removed Posted May 3, 2010 Report Share Posted May 3, 2010 Gearhead, I'll pull the smaller cover off, and inspect the guide. If that's not it, how much will you charge me, if I stop by for you to listen to the noise? Thanks. there is no small cover, otheer then the valve cover.. the timing chain side is one piece all the way down to th oil pan. Quote Link to comment Share on other sites More sharing options...
Xyster101 Posted May 3, 2010 Report Share Posted May 3, 2010 Damn he knows his stuff. Quote Link to comment Share on other sites More sharing options...
Guest Removed Posted May 3, 2010 Report Share Posted May 3, 2010 Damn he knows his stuff. 98% of the time i have been there dont that .... gets rather helpfull. Quote Link to comment Share on other sites More sharing options...
Stampede Posted May 4, 2010 Author Report Share Posted May 4, 2010 Yes, there is small cover, up top across from the cams. Thanks. Quote Link to comment Share on other sites More sharing options...
Guest Removed Posted May 5, 2010 Report Share Posted May 5, 2010 wow they must have changed them up http://i5.photobucket.com/albums/y196/gearhead559/97423845.gif either 7 or 20 is broke.. or the tensioner could not be pumping up doe to sludge... etc and so on. Quote Link to comment Share on other sites More sharing options...
Dave1647545494 Posted May 5, 2010 Report Share Posted May 5, 2010 +1 on a bad guide most of those parts are dealer only too Quote Link to comment Share on other sites More sharing options...
Guest Removed Posted May 5, 2010 Report Share Posted May 5, 2010 +1 on a bad guide most of those parts are dealer only too fucking nissan... Quote Link to comment Share on other sites More sharing options...
Stampede Posted May 5, 2010 Author Report Share Posted May 5, 2010 Don't get me started on Freaking Nissan. Quote Link to comment Share on other sites More sharing options...
Stampede Posted June 3, 2010 Author Report Share Posted June 3, 2010 I finally pulled the small cover off, the upper guide is not damaged. What next? Thanks. Quote Link to comment Share on other sites More sharing options...
turbospec29 Posted June 3, 2010 Report Share Posted June 3, 2010 You could pull the lower intake manifold off and see if you lost any of the screws that hold the butterfly valves on for the secondaries. There are 2 small screws for each of the 4 butterfly valves and they where known for backing out, even come out all the way at times and go int the engine. Nissan did not put loc-tite on them from the factory until about 04-05. Pull each spark plug and look for damage, aslo look in the cylinder for any damage. These engines also had problems with pre-cat failure. Is any noise coming from the exaust manifold maybe? Quote Link to comment Share on other sites More sharing options...
Stampede Posted June 3, 2010 Author Report Share Posted June 3, 2010 I've dealt with the pre-cat/ engine failure last year. After Nissan said NO to help me, cause I didn't have proof of oil changes. I've taken the exhaust covers off. Thanks. Quote Link to comment Share on other sites More sharing options...
Stampede Posted June 8, 2010 Author Report Share Posted June 8, 2010 Can anyone post the assembly drawings of cams, front cover again? Thanks. Quote Link to comment Share on other sites More sharing options...
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