Finally got to change her oil this weekend. And fix that damn whistling noise, intake was not sealed properly. Neway i got the chance to check my vtc's while they were ticking i energized them one at a time. and like magic the ticking went away. I was so exited. my question is this cant i just leave them energized all the time? whats the harm ? By the way i lucked out only 1 vtc is bad its the front one, i lucked out again ! at any rate can i just energize them both all the time to keep the ticking away ? suggestions ? i can just buy the 30 dollar plate and spring andfix it but thats alot of time i just dont have right now. but i guess if i have to ill make the time. let me know what u think.

 

when you say energized them one at a time...do you mean grounding the wire or what.

If you mean grounding the wire then its not positive that its just the front thats bad since the wire you ground is connected to both VTCs...according to Craigs site. That is why you only have to ground it in one spot to ground both of them.

anyway I have never heard it called energized so maybe I am missing something...havent really researched them either. All i have done is looked at Craigs site to get the wire color and ground that wire.

but if that is what you did then yes you can leave it that way all the time.

 

just ground them and be done with it till you have time to fix it. haven't run into any problems so far on anybody else's.

 

As AWSM66 said, you only need to ground one of them. This is because there is only one signal wire coming from the ECU and it branches off into 2 wires near the end of the harness.

Since electricity takes the path of least resistance, as long as the ground wire/connections make have a lower resistance then the VTC's themselves then the power will go directly to the ground instead of threw the VTC, hence disabling the VTC's.

 

well what i did was unplug the vtc solenoids. then run power to the power side of the solenoid and ground the other side. so one side was grounded and the other had power now when i put power to the solenoid the tick went away thus advancing the timing. when i took the power away form the solenoids the tick came back. so im to assume that the spring is shot and its not retarding it back to where it should be ? but will it harm the vtc if i power them up all the time thus advancing it all the time ?

 

Woah!!! hold on, I think you have the whole VTC thing mixed up. Here, read the last post I made in this link:
http://forums.max-world.org/index.ph...=0&#entry17523

Your operating your VTC's like they normally would, until you get to the higher RPM's at which point the cams would still be retarded because the solenoids havent released the pressure yet. From the way I understand it, when you give the solenoid power, it will block the oil passage, causing the VTC's to work, when you take away the power, they will allow the oil to flow into and threw the passage, disableing the VTC's.

VTC's do NOT advance the cam's timing, it retards it. The reason Nissan put the VTC's in the engine was so they could run a more agressive cam, while not loosing the low end. Subsequiently this makes it even better for the people who are running a JWT ECU with the increased Rev Limiter (atleast on paper it does, and there didnt seem to be any power loss in the JWT Equipped VE I rode in once we passed the factory redline). JWT ECU owners would have to comment on that though, since they know their cars the best.

 

Man I think I've got a air leak somewhere myself, but I can't seem to find it. All I know is that my Max does some serious whisltling around 2700rpm to 3500rpm. I installed a autozone pop charger recently and it seems to have gotten worse. Any suggestions????

 

wow your kidding me ! so when i power the vtc up manually it retards it ? and when i release the vtc it advances it ? humm. so technically if i power the vtcs all the time i dont have to worry about the ticking anymore and ill still have the power ? i like this. interesting keep it comming guys.

 

You are making this way more complicated than it needs to be.

go to craigs site or the FAQs and look at what you need to do to ground your VTCs.

Its one wire going to the VTCs to ground...simple as that and no more ticking.

 

yea i know about the grounding, guess i could just do that till i get the spring and plate from courtesy nissan. then ill just fix it.

 

where can i fing craigs site???

 

in the FAQs at the top of the page.

 

"well what i did was unplug the vtc solenoids. then run power to the power side of the solenoid and ground the other side. so one side was grounded and the other had power now when i put power to the solenoid the tick went away thus advancing the timing. when i took the power away form the solenoids the tick came back. so im to assume that the spring is shot and its not retarding it back to where it should be ? but will it harm the vtc if i power them up all the time thus advancing it all the time ?"

Thats correct!

When the VTC's are engaged the timming is advanced! Not retarded (More mis-information Matt). Then at high RPM they are disengaged and the engine will run its natural torque peak. Thats what gives the VE a wide torque band (we'll at least one thats working properly).


"Your operating your VTC's like they normally would, until you get to the higher RPM's at which point the cams would still be retarded because the solenoids havent released the pressure yet. From the way I understand it, when you give the solenoid power, it will block the oil passage, causing the VTC's to work, when you take away the power, they will allow the oil to flow into and threw the passage, disableing the VTC's."

-That's wrong. When the solenoids are engaged the oil is flowing and the timming is advanced! (the spring is compressed). You should buy the fsm and read it.


Gowirelessnj: You have the correct understanding. Its up to you wheter or not you want to ground them. The only drawback is the loss of high rpm power. Low rpm range should be great and the tick should go away (as you have discovered).