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Rick
Rick, Nissan Master Technician
Category: Nissan
Satisfied Customers: 350
Experience:  22 Years working in Nissan Dealerships Currently working for Nissan Dealer
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camshaft timing marks diagram for a 2002 2.5 nissan altima

Customer Question

camshaft timing marks diagram for a 2002 2.5 nissan altima
Submitted: 4 years ago.
Category: Nissan
Expert:  brownjeff replied 4 years ago.
Here is a diagram of the marks

graphic
Customer: replied 4 years ago.
ok i've tried this diagram and i lined up the yellow markings at the top and tighten up everything and when i test it the markings shift over everytime, i have to keep putting them back on the cam markings and it sounds like its free spinning and it won't pick up or sound like its trying to start....is it surpose to do that?....should i go ahead and hook everything up and try to crank it?
Expert:  brownjeff replied 4 years ago.
You will want to turn it over by hand slowly first before attempting to crank it to make sure there is not an issue. They should all line up a=if installed correctly. If it shifts on you see how much it does and adjust the timing for it. For example if it moves a tooth then back it up a tooth when timing it
Customer: replied 4 years ago.
what if when u turn it over you get a pop noise threw the intake
Customer: replied 4 years ago.
what if when u turn it over you get a pop noise threw the intake

Expert:  brownjeff replied 4 years ago.
Then the valve is open and most likely is out of time
Customer: replied 4 years ago.
ok when you put the yellow markings at the top on where they surpose to go and the orange one at the bottom(not the balencer onange marking) is off is that correct??.......and is the orange one at the bottom at 6 o'clock or 5 o'clock or does it really matter where the orange one is???
Expert:  brownjeff replied 4 years ago.
Does the orange link line up with the mark on the gear?
Customer: replied 4 years ago.
the balencer lines up perfect( the one that goes to the oil pump) the one that goes to the cams don't..... if you line up the 2 yellow links on the cams how the diagram has it then the orange link at the bottom doesn't line up with the orange link on the balencer timing chain
Expert:  brownjeff replied 4 years ago.
It will have to line up or it wont run. How far off is it?
Customer: replied 4 years ago.
so its better to have the orange links line up then the yellow links???
Expert:  brownjeff replied 4 years ago.
They all have to line up or it wont be in time
Customer: replied 4 years ago.
see thats the problem......if you line up the orange links the yellow ones are off if you line up the yellow links the orange one is off the balencer timing chain is perfect its the cams chain that dont want to act right......
Expert:  brownjeff replied 4 years ago.
Guess I don't understand why you can't turn them so they do line up?
Customer: replied 4 years ago.
if you turn them then they dont look like the diagram
Expert:  brownjeff replied 4 years ago.
You can't turn them to make the marks line up? Not talking about the picture I sent as I'm wanting to know if you can line up the marks on the cam and the crank at the same time......
Customer: replied 4 years ago.
yea i can but if i do that it wont look nothing like the diagram (talking about yellow links) the cams will look lik the diagram and the balencer will look like the diagram, the chain on the balencer will line up...but the yellow links wont line up with the marks on the cams
Expert:  brownjeff replied 4 years ago.
Can you line up the cams with the crank and the balancer be off?
Customer: replied 4 years ago.
the crank and the balencer is perfect its the cams that dont want to line up
Expert:  brownjeff replied 4 years ago.
I don't know I guess as it doesn't make sense to me. I will send your question to the others here on the site and see if they know
Customer: replied 4 years ago.
ok thanks pleas get back to me asap please
Expert:  Rick replied 4 years ago.

Hi my name isXXXXX will answer your question the best I can if I have helped please remember to click ACCEPT

 

I am going to send you a few pages that have pictures and instructions to putting the timing chains back on , one thing to note is that the intake or the exhaust cam shaft like to jump out of position so you need to have the valve cover off and there is a portion on the cams that you can fit an open end wrench to hold or turn the cams into the correct positions , if you are using genuine Nissan parts the chains should be marked where they line up on the sprockets and that is the most important thing when everything is together all the marked chain links line up on the marks on the sprockets, the sprockets may look to be off a little compared to the diagram . let me know if this helps graphicgraphicgraphic

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