Jump to content
SAU Community

Recommended Posts

I have a R32 Skyline and lately it has been making a rattling noise at night. The noise comes in once the turbo kicks in or once i put my foot about halfway. I can rev the engine all the way out without the noise coming in if i give it a small amount of acceleration. The rattling sounds like its coming from the turbo but im not sure. The rattling also gets faster with the more acceration i give it or the more revs its doing. The rattling noise sounds like metal.

During the day my car is fine and I hear no noises at all. During the night the noise starts but the car still performs perfect. There has also been some nights where there is no noise as well. I thought it might be a bolt loose somewhere in the engine or something becasue it still perfroms well and it doesnt make this noise during the day and only sometimes at night.

Any ideas would be Great!!

Thanks

Matt

Link to comment
https://www.sau.com.au/forums/topic/126900-r32-making-rattling-sound-at-night/
Share on other sites

check all the bolts are tight

you can remove the intake pipe to the turbo, and check for excessive shaft play (or any signs that the turbine has been contacting with the housing)

it could also be just an exhaust gasket leak or cooler piping. check this also.

I have a R32 Skyline and lately it has been making a rattling noise at night. The noise comes in once the turbo kicks in or once i put my foot about halfway. I can rev the engine all the way out without the noise coming in if i give it a small amount of acceleration. The rattling sounds like its coming from the turbo but im not sure. The rattling also gets faster with the more acceration i give it or the more revs its doing. The rattling noise sounds like metal.

During the day my car is fine and I hear no noises at all. During the night the noise starts but the car still performs perfect. There has also been some nights where there is no noise as well. I thought it might be a bolt loose somewhere in the engine or something becasue it still perfroms well and it doesnt make this noise during the day and only sometimes at night.

Any ideas would be Great!!

Thanks

Matt

Sounds exactly like detonation to me especially the "sounds like metal" part, actually everything in this post screams internal destruction. :)

As it only occurs at full throttle.......

Nights are colder than day, colder air is denser, denser air requires more fuel, fuel can't be supplied as fuel pump is on its last legs and finally.... as the fuel pump is on its last legs the cooler denser air is enough to have it start pinging. :wave:

Time to throw it on a dyno for a cheapo power run to see whats going on. Everything you have described indicates this, apart from the faster as engine rev's increase. :O Unless you mean louder? I have this horrible image in my head of you holding it down going yea see its getting faster, as the detonation becomes more and more intense sounding, but surely a motor couldn't live through such abuse. :(

So... I'm back at square one.. nfi. Could be a million things. :(

Get some one to look at it.

Im probably totally wrong, but wouldnt the the frequency of the detonation increase as revs increase?

The higher the revs, the more detonation you will get per second because you obviosuly have more strokes per second?

but surely a motor couldn't live through such abuse

The old holden 202 did... it pinged for 3 years, constantly....

mind you, its hardly the epitome of technological excellence.... :wave:

what i want to know is why roughly 50% of cars on the road today seem to ping?

you drive next to them in traffic an you can hear it as they accelerate, and i cringe :

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

    • This was a huge help.  We followed the steps,  although shifting into 2nd was actually into 3rd for us,  and 1st was into 2nd ( steps 9 and 11) .  The long flash was the 4th flash.  So shift solenoid A is possibly the culprit.  Is this inside the transmission itself? Or is it accessible by just front the pan? Or is it bolted to the outside of the transmission?  Thanos for your help everyone
    • Can you enlighten me on your best practice regarding these hoses? I don't wanna make the same mistake if you already got a better solution.
    • I have some silicon hoses already, for example engine to watercooler. But yeah, I get the sentiment. The lower intercooler silicon hose is drippy too, despite not being very old. Does anyone except Nismo make these same lines out of rubber? Long term I think they'd be the better replacement, especially since the car won't live as hard a life anymore as in the past nor be driven as often.
    • I know most issues are just age related. But for example the turbo oil drains, there is dash adapters for these and you can just make a braided teflon line for them and (probably) never have them leak again. Also not terribly expensive. Can you even get the factory hardlines from new? Or are they repairable if they break?
    • I know it'd be much much easier with the tool. I hope I can find one that won't take 3 weeks to get to me an isn't a "Asian models kit" that has tons of (to me) useless adapters for a load of cash.   It's a summer project/fun car. I do wanna enjoy it, without endless downtime over and over. So yeah I would even go and buy an engine crane + stand to save myself the trouble of hard to reach or unreachable places going bad later on. Would also be a good opportunity to put on a Fluidamper, renew the mains seals and stuff like that. I have some money on the side that I can use for that, what I wouldn't want to or be able to do is let everything be done by a shop or have my engine completely rebuild right now. I intend to do most of the "doable" jobs myself. Pulling an engine can't be that hard, can it?
×
×
  • Create New...