Thread: Trouble setting timing.

So it drives ok other than the noise? What about at WOT?

here a video of me driving the vehicle..kinda starting to think that it might be the timing chain. thinking about doing the timing again. now that i have a little more knowledge on the procedure.

Do me a favor take the valve cover off and take the little plate that is directly over the timing chain in between the two cams. Put the valve cover back on and see if it still makes the noise if so the tension on the chain might still be weak.

I actually never had that timing chain guide. I don't think RRs came with them

At WOT it is Still there but It is definitely very throaty very loud for having a stock intake box

amuse me.put the motor to tdc.forget the amount of chain links between the cam gears.using the second diagram i gave you (which is actually a tomei diagram) count the teeth down on either side from the holes in the cam gears.if you ain't got 5 on the intake,and 9 on the exhaust,then its out.i'll bet you got 10 on the exhaust if you have only got 20 links between the gears...

here's a vid of a bloke in aus's motor who had the exact same problem.


why's the idle so high? timing's at? is one of you cv's f*%ked?
now i dug up this,count teeth (not links) between the two red lines,including the two red lines.there are 21.count teeth,not links.links will confuse you...count 5,21,9.
http://img.photobucket.com/albums/v311/viprdude/March%202011/camtimingpaintmarks.jpg

I'm really not sure why you're making this more difficult than it needs to be. If the crank gear is in the right postion (TDC) and the exhaust cam gear is in the right position (cam key @ 12 o'clock) and there's 20 pins between the exhaust gear mark and the intake gear mark and there's no slack between the crank gear and the exhaust gear, the cam timing is correct. Any other numbers or counting beyond that is extraneous and confusing to others.

im gonna open her up today i have the afternoon off and tomorrow off so il have a decent amount of time to take a look. i cant take the noise anymore.

Just watched the 2nd vid of you driving.. And with that sound, i think I'm going to suggest you don't drive it anymore until we get this figured out. It almost sounds like heavy valve tapping due to oil starvation up top.. But you said it was fine before this, so unless its a coincidence that your motor went south at the same time (which is unlikely but I have seen these types of things before) it's def not running even close to correctly, it sounds like its about to blow up. I'm not sure if cam timing would cause this sound, as I've seen SR20s which were off a tooth or two after a cam swap not even start up, or if they did, start up and stall within like 4 seconds.

I'm not trying to scare you but that sound sure scares me. How did everything look up top in terms of any oil sludge, dark stuff etc? Has the oil been changed regularly?
While Its prob due to the demographic who were more likely to own the Infiniti G20 back when it was new (owners were possibly a bit older and less likely to hit the rev limiter on a regular basis, which is actually healthy for the SR20) - I ask because we have seen a lot of G20's over the years with these types of issues, usually automatics that were driven very softly and suffered from oil starvation and/or were poorly maintained. (I knew a guy who bought a G20 from an older woman where the service records indicated she went over 14k between oil changes at times in 8 years of ownership)

Your motor does not have the timing chain guide installed, correct? I think Nissan ditched them in the SR20 after 1997, they did no good at all and actually could damage the timing chain over time, not to mention the noises. I remove them everytime I get my hands on another SE-R.

It sure could be and probably is the timing, I'm just surprised it even runs.

here is some more videos that show how i have the car sitting at the moment with regard to the timing and with regard to the rockers

TIMING

ROCKERS

thanks again guys for all the help.