Jump to content
SAU Community

Freshly rebuilt RB25DET Neo Ticking

LjB123

By LjB123,
in Engines & Forced Induction

 Share

Recommended Posts

LjB123 Enthusiast

LjB123

Posted
Posted

Freshly rebuilt RB25DET Neo, all done by the one shop except for the machining, so the reassembly/rebuild, bed in on the dyno, and final tune. So far have done just under 1000kms since getting it back, and then this tick started happening.

Was a bit quieter the other day when it started, took it to the shop to have a look, was told it was likely the VCT gear had shit itself because of where the tick was situated, and to take it home, i drove home cautiously and havent driven it since, but started it up today and it was suddenly louder and more rattly. The shop is taking it back later this week to see what the go is, has anyone else had a ticking like this? Sounds like its in the head, the spun bearing it had before getting rebuilt was a deeper knock and definitely down in the bottom if the engine, different to this, its alot higher pitched 

Thanks in advance people!

Link to comment
https://www.sau.com.au/forums/topic/485906-freshly-rebuilt-rb25det-neo-ticking/
Share on other sites
LjB123 Enthusiast

LjB123

Posted
  • Author
Posted
25 minutes ago, GTSBoy said:

Sounds like VCT actuator.

As in the solenoid? I disconnected it and still makes the noise unfortunately. The solenoid works as it should, unplugged and when 12v is applied it clicks open and closed

LjB123 Enthusiast

LjB123

Posted
  • Author
Posted
6 hours ago, GTSBoy said:

No, the solenoid is not the actuator. The actuator is on the cam gear, to make it actually move when given oil pressure by the solenoid.

Ah ok so best bet is replace the cam gear? I do have a spare low km engine with one on it. Will try replacing it with that

LjB123 Enthusiast

LjB123

Posted
  • Author
Posted
3 minutes ago, GTSBoy said:

The actuator is not the cam gear. It is attached to the cam gear. But if you wanted to swap over the whole cam gear, then that would (should, depending on the health of the spare) work too.

Ah understood. I cant find anywhere that sells just the actuator, just the whole unit itself with the gear unfortunately. Not cheap either

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

    • r32-25t
      2025 Osaka Auto Messe

      By r32-25t · Posted

      I’d love to find some where that can recover the dashes to look brand new and original. Mine has a very slight bubble, nothing compared to come I’ve seen though 
    • Rezz
      2025 Osaka Auto Messe

      By Rezz · Posted

      $170K. I asked one of the guys there as a joke if that price was just for the passenger seat as it was where the price sheet was... he tried really hard to crack a smile 😄 He also mentioned that every single part of the car was inspected and either restored or replaced with a new or as new part, or made from scratch. The interior was incredible, every inch like a new car.
    • Dose Pipe Sutututu
      R32gtr sputtering and stalling

      By Dose Pipe Sutututu · Posted

      Time for a modernisation, throw out the AFM, stock O2s, ECU into the e-waste bin. Rip out the cable throttle, IACV, pedal, etc. into the scrap metal bin. DBW, e-throttle, modern ECU, CANbus wideband, and the thing will drive better than when it left the factory.
    • MBS206
      R32gtr sputtering and stalling

      By MBS206 · Posted

      I agree, don't go trusting those trims. As I said, first step is to put the logger away, and do the basics in diagnosis.   I spend plenty of time with data loggers. I also spend plenty of time teaching "technicians" why they need to stop using their data loggers, and learn real diagnostics.   The amount of data logs I play with would probably blow most people away. I don't just use it to diagnose. I log raw CAN data too, as a nice chunk of my job is reverse engineering what automotive manufacturers are doing.
    • joshuaho96
      R32gtr sputtering and stalling

      By joshuaho96 · Posted

      I'm aware, but unless you're actually seeing the voltage the ECU is seeing and you're able to verify the sensors are actually working I find it hard to just trust STFT/LTFT. I will say, logging the ECU comes naturally to me because it's one of the lowest effort methods of diagnosis and I do similar things in my day job all the time. Staring at 20+ charts looking for something that isn't quite right isn't for everyone. NDS1 allows you to log almost everything so that's normally what I do and then sort out the data later. 
×
×
  • Create New...