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I hope at least a few of you on here have had some experience tinkering with these motors. Currently, the upper timing chain is contacting the valve cover. You can see where it is hitting on the underside of the valve cover. The chain guides that everyone says to remove are gone and I just got done replacing the upper chain tensioner. The chain is still hitting the cover; its a nasty noise. At this point, I've come to the conclusion that the problem is one of two things:
1) Low oil pressure
2) Chain is stretched
The next course of action is going to be dropping the lower oil pan this weekend. The pan looks a little dented so I am going to drop it and try and hammer it straight. When I put new oil in it, I am going to try filling it with 15w-40 oil (been running generic 10w-30 since I purchased a year and a half ago). If this doesn't remedy the problem, I fear I may be out of options as I do not have the time or equipment necessary to pull the engine.
So I guess I'm basically asking if anyone has any experience or ideas for a simple fix that I have overlooked to this point. The car is an Altima by the way. Thanks for reading.
1) Low oil pressure
2) Chain is stretched
The next course of action is going to be dropping the lower oil pan this weekend. The pan looks a little dented so I am going to drop it and try and hammer it straight. When I put new oil in it, I am going to try filling it with 15w-40 oil (been running generic 10w-30 since I purchased a year and a half ago). If this doesn't remedy the problem, I fear I may be out of options as I do not have the time or equipment necessary to pull the engine.
So I guess I'm basically asking if anyone has any experience or ideas for a simple fix that I have overlooked to this point. The car is an Altima by the way. Thanks for reading.