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

    • soviet_merlin
      RH9 R32 GTR Build Thread

      By soviet_merlin · Posted

      Out of curiosity, how do you cover up the inspection hole? Surely it doesn't sit open like that, right? With grime and dirt coming in and oil going out?
    • Waders360
      M35 Brake caliper replacement

      By Waders360 · Posted

      Hi from Canada, Both of my calipers are starting to fail. My car is a 2005 M35 Stagea ARX and I can't seem to find any parts or any cross reference caliper that would fit my car. Is there a company or a similar caliper that would fit and I could replace the OEM one. Or if anyone knows where I can find a new OEM. Any help is very appreciated. Let me know!
    • 25zenki
      S1 rb25/s14 starting problem

      By 25zenki · Posted

      Maf is a question mark but TPS  I have set at 0.47, the fact that I’m getting proper voltage range out of it with the key on leads me to believe it’s functioning properly. I’m getting proper voltages on basically everything. I still need to look up voltage ranges for z32 maf and test that 
    • 25zenki
      S1 rb25/s14 starting problem

      By 25zenki · Posted

      Honestly no not at all, but it’s a very basic tune, it’s stock injectors q45 tps and z32 maf. Other than that it’s a completely stock base map. The file is from nistune and from my understanding if it was tune related I would be able to unplug maf and tps and it would still start even if it was a really shitty start. I have tried starting it with coolant temp, maf, and tps unplugged none of those 3 togethor or individually changes anything 
    • Matt Z
      SAU NSW - Bathurst Run 2025

      By Matt Z · Posted

      🏆 Skyline Supremacy Meets Mount Panorama Magic 🏆 Join SAU NSW as we take the long way to Bathurst, the home of GTR greatness. Saturday 30th August 2025 7:00AM Meeting Hanna Park North Richmond 7:30AM Departure Cruise Via Bells of Line Road 9:00AM Arrival to Stop 1: Golden Poplars Meadow Flat 9:45AM Arrival to Final Destination: Mount Panorama Motor Racing Circuit Meet Location: Hanna Park North Richmond Stop 1: Golden Poplars Meadow Flat Final Destination: Mount Panorama Motor Racing Circuit   *Disclaimer* There will be a lead and follow car so no one should get lost. If you would like to attend or bring others along please put your name down and a +1 as numbers will be needed prior! This is NOT a race and we will all be adhering to all road rules. If this is what you want please come to one of our many track days. This is an official SAU:NSW event and will be run under a CAMS permit. One of the things that really sets our club apart is our commitment to being true enthusiasts. When on normal roads we strive to maintain good relations with the authorities as well as the public in general. When attending one of Skylines Australia NSW events please try to: • Be aware of surrounding environment and act accordingly. • Drive courteously on the state’s roads as a true enthusiast should. • Understand how important it is to maintain the good name of SAU NSW and thus, treat others accordingly. • Any misbehavior will not be tolerated and you will be asked to leave.
×
×
  • Create New...