Jump to content
SAU Community

Recommended Posts

i know this has been discussed before, but my enginee is making a tapping noise from idle to 4krev its always there i am currently looking at getting a screwdriver and listening to the diffrent parts of the engine. its either injectors or tappets....

could cleaning the injecters fix the problem if it is injector related.....

i bought the car and it didn't make that much noise but now after the first oil change its always there and anoying... any ideas how to fix the problem

Link to comment
https://www.sau.com.au/forums/topic/93655-injectors-or-tappets-making-noise/
Share on other sites

my rb25 developed this noise after about 80,000k's of use. i was told by several work shops that its fine. engine @ 130,000 and still going fine on same injectors. they used to be silent as then one day noticed they make tapping noise

I've got the same sound in my R32 RB26

So do you guys think that it's the tappets or the fuel injectors.

I tried listening with the stethoscope thingy and couldn't tell where it was coming from.

If it is the tappets and it doesn't get louder do you think that it'll be alright.

Is there any sure way to tell. I'm thinking about throwing in some thicker oil to see if it goes away, otherwise how would I tell which it is?

Edited by RB240Dav

Is it more of a ticking sound rather than a rattle?

I've noticed that my last 2 sets of single pintle 550 injectors were pretty noisey and that was a ticking/clicking sound.

The last set of buggered lifters i heard were more of a rattle that got significantly louder with revs. There's a big difference in the sound. What sort of car are we talking about here as an rb doesn't have tappets.

Is it more of a ticking sound rather than a rattle?

I've noticed that my last 2 sets of single pintle 550 injectors were pretty noisey and that was a ticking/clicking sound.

The last set of buggered lifters i heard were more of a rattle that got significantly louder with revs. There's a big difference in the sound. What sort of car are we talking about here as an rb doesn't have tappets.

Right right, Lifters, I don't know what I was thinking.

Which reminds me, I have yet to put a load on the engine, so the lifters might not be tight yet. The motor probably sat for at least a year so I'll have to see what happens once I get it out on the road.

Yes, it's definately a ticking / tapping sound. The frequency increases with rpms, but doesn't get any louder. Do the stock injectors make some noise themselves, I mean 440 is a pretty good size injector.

  • 1 month later...

not sure mate my rb26 has 550cc injectors and it makes a similar noise to what u r discribing and fairly loud to, also a slight noise from the lifters in my car but can hardly hear it ova the injector noise

Edited by Turbz_13

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


  • Similar Content

  • Latest Posts

    • Interesting, I've heard complete opposite on my end. Bit of a lottery I guess.
    • Getting Dangerously close to being ready to go back in the car. Rockers in with clearance castings now (and a quick check with the USA for the torque settings for the larger custom bolts) Covers and ported FAST Manifold sitting on there. Not fully tightened down as there's some clearancing required for the water pump with the earlier LS1 water pump styles. Example of the clearancing needing to be done: The body has to be ground a little but I'm struggling finding an actual piece of it. The later variant of water pump resolves the issue as the manifold was designed around it. It only came on the VZ LS1 in Australia, it got a different pulley for Gen4 motors. (it also costs $450... vs... $0).
    • https://files.fm/f/5atwkuvcjd
    • Doing some height adjustment on front suspension on a v35 and noticed this. The passenger side looks correct. So wondering what's happened to the drivers side?
    • Oh...I have the electric mirrors as well iirc ...they're in the same state as just about every other R31 door mirrors, with the 3 plastic screw towers broken/cracked in the plastic molding. All the interior is 'dry', so the mirror switches etc likely all work fine. Some pics below of the trimmer pieces ~ looks to me like previous owner, painted chrome finished trims with black paint ...ergo, the chrome underneath is likely a-ok... ...starts to look yukky posting stuff like this, how much did it cost in fuel on your last sortie up this way?...me just thinking aloud, borrow someone else's 4cyl to cut costs, come do your own pick'n'pull like before to save me some bother...hehe.. but whatever, I'll just earmark bits I know you want, because the way this is all panning out, I'll be able to retire the R31 from daily duty at long last, replacing it with a Subaru wagon I'm lining up in the wings...ergo, my attitude towards the donor pinny shell is starting to wane a bit, and I'm more than happy to help you out there... Like you say though, no rush...and I'll guarantee we won't be moving too far from this locale at any rate 😎
×
×
  • Create New...