Jump to content
SAU Community

Weird clicking noise

Airzone

By Airzone,
in General Maintenance

 Share

Recommended Posts

Airzone Rising Star

Airzone

Posted
Posted

Hi guys

Just wondering if anyone here knows what this might be.

I am experiencing a weird tapping noise that appears to be related to the engine speed and temperature. When the bonnet is down, you can hear it pretty clearly just by standing behind the front wheel. With the bonnet up, it's drowned out by the engine noise / injector clicking. It goes away eventually when the engine's warm. It's louder while idling.

It started as soon as I did my last oil change (shell oil). I dumped that oil and went for mobil 1. It's still there, but it goes away quicker. In both cases, the oil level was more or less correct (just a bit over) and the correct viscosity ratings (although the mobil 1 is thicker)

I read that people have similar noises related to the rockers and tappets (? whatever those are). I can't hear anything coming from the rocker covers and when I have the oil plug open there's only normal running noise (and I can't feel any air coming out either). I hear it more clearly if I stick my head under the car. Anyway, it seems to be related to oil somewhere.

My AFM is a little dodgy I think and is causing rough idling (I tried to clean it, but only made it worse, in typical fashion :rofl: ). I cleaned a whole heap of crap out of the AAC valve. There's no aftermarket bov - the car's stock to the balls.

Any idea what it is? I'll be trying electrical contact cleaner on the afm as soon as I get some.

Link to comment
https://www.sau.com.au/forums/topic/25954-weird-clicking-noise/
Share on other sites
  • 4 months later...
Nismo_286 Contributor

Nismo_286

Posted
Posted

Hi,

I have a very similar situation like yours and was just wondering if you have solved this problem?

I am very irriatated by this tapping noise.

Thanks for your advice.

Hi guys

Just wondering if anyone here knows what this might be.

I am experiencing a weird tapping noise that appears to be related to the engine speed and temperature. When the bonnet is down, you can hear it pretty clearly just by standing behind the front wheel. With the bonnet up, it's drowned out by the engine noise / injector clicking. It goes away eventually when the engine's warm. It's louder while idling.

It started as soon as I did my last oil change (shell oil). I dumped that oil and went for mobil 1. It's still there, but it goes away quicker. In both cases, the oil level was more or less correct (just a bit over) and the correct viscosity ratings (although the mobil 1 is thicker)

I read that people have similar noises related to the rockers and tappets (? whatever those are). I can't hear anything coming from the rocker covers and when I have the oil plug open there's only normal running noise (and I can't feel any air coming out either). I hear it more clearly if I stick my head under the car. Anyway, it seems to be related to oil somewhere.

My AFM is a little dodgy I think and is causing rough idling (I tried to clean it, but only made it worse, in typical fashion :O ). I cleaned a whole heap of crap out of the AAC valve. There's no aftermarket bov - the car's stock to the balls.

Any idea what it is? I'll be trying electrical contact cleaner on the afm as soon as I get some.

Nismo_286 Contributor

Nismo_286

Posted
Posted

Hi.

I am a fellow skyline driver and have a similar problem to yours (as below). I am wondering if you have found the cause of the problem.

I would like to hear from you soon.

thanks.

Hi guys

Just wondering if anyone here knows what this might be.

I am experiencing a weird tapping noise that appears to be related to the engine speed and temperature. When the bonnet is down, you can hear it pretty clearly just by standing behind the front wheel. With the bonnet up, it's drowned out by the engine noise / injector clicking. It goes away eventually when the engine's warm. It's louder while idling.

It started as soon as I did my last oil change (shell oil). I dumped that oil and went for mobil 1. It's still there, but it goes away quicker. In both cases, the oil level was more or less correct (just a bit over) and the correct viscosity ratings (although the mobil 1 is thicker)

I read that people have similar noises related to the rockers and tappets (? whatever those are). I can't hear anything coming from the rocker covers and when I have the oil plug open there's only normal running noise (and I can't feel any air coming out either). I hear it more clearly if I stick my head under the car. Anyway, it seems to be related to oil somewhere.

My AFM is a little dodgy I think and is causing rough idling (I tried to clean it, but only made it worse, in typical fashion :O ). I cleaned a whole heap of crap out of the AAC valve. There's no aftermarket bov - the car's stock to the balls.

Any idea what it is? I'll be trying electrical contact cleaner on the afm as soon as I get some.

Airzone Rising Star

Airzone

Posted
  • Author
Posted

Yeah, I had some luck. My throttle body was caked in shit, so I cleaned that off with carby cleaner... However in the process, I put the TPS out a fraction I think, so I need to fiddle a bit more.

As for the tapping, it's worse now thanks to the last service at Mofo's-R-Us dodgy performace mechanics. I'm guessing I'll have to eventually take off the cam covers and clean out the lifters by hand. I just need to make the time for it. If you search the forums, there's an article about DIY lifter cleaning for a Lancer Evo engine, but it should pretty much be the same deal with the skyline - except just more lifters to clean :D

Nismo_286 Contributor

Nismo_286

Posted
Posted

Thanks... i will definitely look into it.

Btw, does TPS mean Throttle Position Sensor?

And what did Mofo's-R-Us do to your car?

Yeah, I had some luck. My throttle body was caked in shit, so I cleaned that off with carby cleaner... However in the process, I put the TPS out a fraction I think, so I need to fiddle a bit more.

As for the tapping, it's worse now thanks to the last service at Mofo's-R-Us dodgy performace mechanics. I'm guessing I'll have to eventually take off the cam covers and clean out the lifters by hand. I just need to make the time for it. If you search the forums, there's an article about DIY lifter cleaning for a Lancer Evo engine, but it should pretty much be the same deal with the skyline - except just more lifters to clean ;)

Airzone Rising Star

Airzone

Posted
  • Author
Posted

Mr. GTS4 - Normal I think... Between 2 and 4 on the stock gauge.

Nismo_286 - Yeah, that's it. Mister Mofo left a couple of hoses undone - like the host from the intercooler to the crossover pipe for example. That and the usual other things, and they only made my car worse ;)

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

    • sinn3r
      R34 Skyline climate control unit transistor

      By sinn3r · Posted

      You can’t see much on the other side as the lcd is there I don’t think it’s the same as the m33 beside it as the markings on top is not the same was hoping someone had a good quality photo or if they just happened to have the unit in hand, quickly take the cover off and take a photo to clearly show the marking on top to identify the diode   the unit is currently with an electronics repair shop so I can’t take another photo at the moment hopefully they are smart enough to know if it’s a zener diode or not
    • soviet_merlin
      WGNC34 - floor mats

      By soviet_merlin · Posted

      I'd be very surprised if you can buy new OEM mats. But if you can, I want some too!  Do you have links to the variations you found? Also, where are you located? I found that Nengun is happy to list items to purchase but when you do buy them you'll get an email that it's actually discontinued. As far as I know the variations in floor mats are different colour schemes as well as automatic and manual having a slightly different shape. The automatic ones fit into a manual car without issues, but I think you'd have trouble fitting the other way around. I have photos that show the shape difference if you care. FWIW I bought sets of used floor mats in decent condition at yahoo auctions.
    • Marek
      WGNC34 - floor mats

      By Marek · Posted

      Hi 🙋‍♂️. Just bought my Unicorn but the interior need some minor work so it would match my expectations ;). I noticed it is hard to get used oem floor mats in good condition so i started to dig if there's any chance to buy set of new ones. I found two websites - nengun and amayama and it looks like one can still buy factory new floor mats in Japan, but thers a small issue. Some mats (i assume genuine, oem ones) are marked as G4900 and these are "discontinued". The ones you can buy are marked as G4911 but i have no idea if these are also oem, made by other producer or some lower quality replacements that looks entirely different. Can anyone help? 😃  P.s. there is also some strange indication - 0V005, 0V015 and 0V505. Any idea what does it mean? Would appreciate any help with this 🙏
    • Marek
      Hi everyone.

      By Marek · Posted

      Hi, Marek here 🙋‍♂️. I finally fulfilled my longtime dream - recently bought Stagea and now waiting for it to arrive in Poland. There's only few of these in my country, and one of the owners  recommended mi this forum as a source of all the info i'd need since now i own one  so here i am.  
    • The Bogan
      NC MX5

      By The Bogan · Posted

      Version 1 aluminium airbox is.......not acceptable No pics as I "didn't like the look.....alot" Even after all my "CAD", and measurements, the leg near the fusebox just didn't sit right as it ended up about 10mm long and made the angle of the dangle look wrong, the height was a little short as well, meh, I wasn't that confident that Version 1 was going to be an instant winner I might give Version 2 another go, there's plenty of aluminium at work, but, after having in on and off a few times, and laying in the old OEM airbox without the new pod filter and MAF, there may be an option to modify the OEM air box and still use the Autoexe front cover and filter.... maybe This >  Needs to fit in here, but using the panel, and not the pod, the MAF will need to fit in the airbox though> I'm thinking as the old OEM box and Autoexe cover that is sitting in the shed is just sitting around doing nothing, and they are relatively abundant and cheap to replace if I mess it up and need another, it may well fit with some modifications to how the Autoexe brackets mounts to the rad support, and some dremiling to move it get in there, should give me some more room for activities, as I don't want to move the MAF and affect the tune Sealing the hole it requires to stick it in the air box is simple, a tight fit and some pinch weld will seal it up tight  I am calling this a later problem though
×
×
  • Create New...