Jump to content
SAU Community

Noisey Rb20 Det Head

rotort

By rotort,
in Engines & Forced Induction

 Share

Recommended Posts

rotort Contributor

rotort

Posted
Posted

Can any one help

I have a noisey head on my RB20DET, my self and many other have diagnosed it as noisey lifters clattering, I tried many different additives to try and quieten it down, with no luck, ive tried super thin oils, thick oils, I have changed all the inlet cam lifters (as its that side that was noisy)(comes from just behind the throttle body, so cylinder 4-5 or 6) and it just doesnt go away.

It only makes the noise at idel and off the throttle, under power it only doesnt it at low revs. I am at a loss and just dont know what it is. I thought it must be a big end bearing, causing piston slap, or something more terminal, but i have been chasing the noise for over a year and the engine still goes strong, it has lasted multiple drift days etc. So it cant be to fatal, it just gets noisier. The engine isnt far off standard, just the usual, zorst filter, FMIC, boost, Oil cooler.

I currently have Mobil 1 in the engine, going to try some thick stuff again, but I just dont know what next

Any ideas Guys

thank you.

martin

Link to comment
https://www.sau.com.au/forums/topic/270722-noisey-rb20-det-head/
Share on other sites
lachlanw Veteran

lachlanw

Posted
Posted

put the tip of a long screw driver on the injectors and your ear close to the other end . ( or a shortish straight ish piece of garden hose ) should be pretty easy to find the noise . and i have a mate with noisey rb20det injectors . its not a loud tapping noise like lifters but it is more of a loud tick noise

rotort Contributor

rotort

Posted
  • Author
Posted

definitely not injectors, i have run the engine with each injector unplugged, all this did was made the noise even louder as the engine went off balance due to miss firing on 5 cylinders. so it is definitely not an injector, it is definitely mechanical noise rearward of the throttle body.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • joshuaho96
      Tomei gasket

      By joshuaho96 · Posted

      I've heard the Tomei USA head gaskets are decent if you want to o-ring the heads but otherwise not recommended.
    • GTSBoy
      What brakes on R34 GTT(Europe)

      By GTSBoy · Posted

      The 296mm rotors are the R33 turbo brakes. The 310mm rotors are the R34 turbo brakes. The calipers are nearly the same, but not. They're the same caliper but the R34 caliper has longer legs so that it sits out far enough to go over the rotor. The pads are the same for both. When you say, "I bough tsome EBC"....did you just mean pads? Or rotors? 310mm rotors fit under 17" wheels. There may be some wheels without enough clearance though. I can't fit my fingers between the barrel of my wheel and the "corners" of my R34 calipers, but there is plenty of room behind the spokes. This is on Enkei RPF1. You can fit 324mm rotors inside a 17" wheel, but I'd be willing to bet that it would be close to impossible with the Nissan/Sumitomo caliper (using an adapter, of course), because the Sumitomo caliper is fatter than the Brembo caliper that is supposed to go on the 324mm rotors.
    • Kapr
      What brakes on R34 GTT(Europe)

      By Kapr · Posted

      Hi. Can someone tell me what brakes(and mainly WHERE) can i buy brakes on R34 GTT? I bought some EBC which SHOULD go on my car(i have GT but it has GTT brakes) but it does not fit, Brakes are "too" small(296mm) Are 310mm be good or? I have 17 inch wheel so no "big boys" but for me driving i just need one that fits and i can get here in EU/Czech.
    • Marek
      Hi everyone.

      By Marek · Posted

      Since winter isn't that harsh anymore in Poland, i will definetely drive it 365 days a year 😉. But if the snow hits i will try it for sure and let U know. Only swap i am planning to do is of course R34 GTR front 😍.
    • Marek
      WGNC34 - floor mats

      By Marek · Posted

      Hey. Very valuable information about pitwork, I will pay attention when buying any consumable parts 🙏 As for the carpets - I got a handful of information from nengun, from which it appears that indeed the carpets for the driver's side are OEM. They are not able to show me any pictures due to the long chain of different sales entities but after I place the order, as soon as the goods arrive at the nengun warehouse from which they will send the shipment to me they can send me photos and if my purchase differs from OEM I can immediately return it / cancel the purchase. I think I will give it a try 😉. Of course i'll let you know what's what as soon as i get them P.s. I know the topic is not relevant to the thread, but both nengun and amayama have these SICK 😍 trunk room lamps available. Do you know anyone who ordered them? I need to have one in my car
×
×
  • Create New...