Please help. any advice would be awesome

[R33_Series2Lover]

Hey all I had this posted in the wrong forum before so ive decided to post it here.

Hey all ever since ive installed my blow off valve when i start the car and leave it to warm up I begin to hear this ticking sound coming from the engine. When i first start it nothing its fine but after a little while of just leaving it there the ticking sound begins. When i begin to drive the car the ticking goes away. Wierd?? Never happened before I had the Blow off valve fitted. When Installing the blow off valve also the guy had the idle adjusted the guy was using a screwdriver to tighten something in the engine bay. What could the reason for the ticking sound

be??? Ive spoken to the mechanic he just goes it just because it takes time for oil to rise when the oil rises the noise stops. Also my idle is wierd also. Before i use to turn it on and go on 600. now everytime i turn the car on it goes to 1000 then drops slowly to 900 then to 600. Then basically it stays between 600-800.

But when i first turn it on for the day it goes to like 1200 then takes a long time to get to 600. If i just get the stock B.O.V refitted and get idle adjusted would it all be good??

[The Dan]

Hey all I had this posted in the wrong forum before so ive decided to post it here.

Hey all ever since ive installed my blow off valve when i start the car and leave it to warm up I begin to hear this ticking sound coming from the engine. When i first start it nothing its fine but after a little while of just leaving it there the ticking sound begins. When i begin to drive the car the ticking goes away. Wierd?? Never happened before I had the Blow off valve fitted. When Installing the blow off valve also the guy had the idle adjusted the guy was using a screwdriver to tighten something in the engine bay. What could the reason for the ticking sound

be??? Ive spoken to the mechanic he just goes it just because it takes time for oil to rise when the oil rises the noise stops. Also my idle is wierd also. Before i use to turn it on and go on 600. now everytime i turn the car on it goes to 1000 then drops slowly to 900 then to 600. Then basically it stays between 600-800.

But when i first turn it on for the day it goes to like 1200 then takes a long time to get to 600. If i just get the stock B.O.V refitted and get idle adjusted would it all be good??

No, it won't be all good

The ticking noise is (99%) your lifters which are located underneath the cam rockers. What sort of car is it? They must fill up with oil to work correctly. What happens is the oil drains from them and the pressure releases from them causing the space between the rocker and the lifter to get larger. This is the tapping noise you can hear...this is also why they are sometimes refered to as tappets. You're ones won't be tappets though. They will be hydraulic lifters most probably.

The thing that bothers me is that lifters usually only make a noise when you first start the car, when the oil pressure is low and there is no oil at the top of the engine. But you said no noise when you first start it, then it comes in after a while.Then goes away when you start driving it.

Does it do it every time you start it or just from when it has been sitting for a long time (stone cold)?

Check to see if the noise is coming from the top of the engine or the bottom(very bad if from bottom). See if you can hear it on both sides of the engine. Does the sound go away when you just rev it in neutral or do you have to be driving for it to go away? Does the noise stay there if you just let it sit and idle or does it eventually go away? Do you park on a hill? Does the front of your car face north or east? (nah just kidding, just seeing if you were paying attention).

With the idle thing, he would have adjusted what is called the IAC valve (Idle Air Control Valve) It is the valve which lets air bypass the throttle when it is closed to let the vehicle idle. He should not have adjusted this as usually (in the skylines anyway) it can cause problems with the valve sticking.

In summary....the blow off valve will most probably have nothing to do with the noise (don't rule it out though).

Try to 1: locate the noise and 2: describe better what is sounds like(with your head under the bonnet and 3: write back and tell me what you have found.

Or you can call me on 0418 770 716 and I can speak to you in person. My name is Daniel.

Hope this helps.