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Whats This Loud Ticking Noise?

4drftn

By 4drftn,
in General Maintenance

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4drftn Experienced

4drftn

Posted
Posted

my car is an rR33 S1 with rb25det. iv got this really loud ticking noise under the bonnet, looking at other threads it can be a number of things.

i have 550cc injectors and have been told they will make a ticking noise...

could also be clutch fan (bearing giving out)

could also be spark plugs tappin the heads...

im leading towards the plugs because also my car is idleing high, but im unsure if that would have anything to do with idleing issue....

whats the most common thing causing this ticking noise?

cheers 4drftn

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Styline GTR Rising Star

Styline GTR

Posted
Posted

i got a clicking noise that comes from somewhere in my 32 GTR engine bay that only clicks when the turbo timer is running!! Real loud it is hey! Hicas Light flashes when turbo timer is running... Is this Normal????

Cant find the source of the clicking noise but it seem to be in the front passenger side of the engine bay near the Pod Filters! Vibrates the pipes that run down the the radiator side near the battery though!!

DRIVING ME MAD FOR MONTHS NOW!!!!

Godzilla32 Veteran

Godzilla32

Posted
Posted

All you need to do is grab either a screw driver or a piece of small hose (like vaccum hose) and put one end on an injector and one end on your ear and see if the ticking is coming from the injectors...If it sounds in time with the noise you can hear with your other ear then you've found the source. When you rev the engine from under the bonnet if the noise goes away when you let go of the throttle then its the injectors as they will cut out on decelleration. Its true they are quite loud but it could also very easily be your hydraulic lifters (being RB25) stuck or just lost their tension. If it is the lifters you can try trunning some lifter free up. It works quite well unless they are completely finished.

Good luck,

Deren

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