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Bad Skyline Engine Noise

nikdagrik

By nikdagrik,
in Engines & Forced Induction

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nikdagrik Rookie

nikdagrik

Posted
Posted (edited)

Hey guys, I've only had my R33 for week now, and it's already giving me headaches.

I was driving perfectly without a flaw for the first couple of days that I had it, but then I started having mis firing issues in mid range and in high range. I changed the spark plugs myself to irridiums, and it got rid of the middle range mis fire but I still have high range mis fire. Anyway, thats not my query, I'm just letting you know what I have mucked around with.

My car is pretty much stock. after market cat back exhaust and pod are the only mechanical mods. So anyway, the day that I changed my sparkplugs, I was driving at night, and I could have sworn I ran over somthing. If I didnt run over somthing, then somthing just went bang in my engine. After this Bang my engine still runs completely fine, but I get this ticking/scraping/grinding noise coming from where my turbo is. I am a noob with skylines/engines ,but I'm gussing somthing that spins in there, is grinding and I have an exhaust leak or somthing. But I cant smell exhaust fumes from the engine. My car still runs fine, and boosts the same as before, plus I still have the misfiring issues.

I'm going to take it to a mechanic on Monday, so I guess these are my questions. Is my car alright to drive on the weekend? Do you know what the problem is? Does this look like a big problem? Is it going to be expensive to fix?

Below is a YouTube link to a video I took of my engine noise.

Thanks guys!

Edited by nikdagrik
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https://www.sau.com.au/forums/topic/295276-bad-skyline-engine-noise/
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GTRsean Grand Master

GTRsean

Posted
Posted

Ha ha, I've heard that before!.

It's one of the turbo flange exhaust gaskets that has blown out.

Exhaust system flexes, knocks from speed bumps etc, wear can cause em to open up and leak, then sound like a lawn mower lol.

Pretty sure thats what it sounds like. Let us know how you go!

Guilt-Toy Grand Master

Guilt-Toy

Posted
Posted
Cool thanks fellas, if its a gasket, I can probably do it myself... but like, what about that ticking/grinding kinda sound?

take the turbino off and replace the gaskets and check condition of turbo - then put it back together. dont worry about the grinding noise untill you check condition of turbo.. ticking noise is the exhaust leak

Dorigecko Proficient

Dorigecko

Posted
Posted
Alright cool, thanks alot guys! how sick are these forums ay!

I'm in Perth so, where can I find these gaskets from? do like conventrys have them? I herd genuine nissan gaskets are the go.

coventrys are f**ked man.

DVGs in midland are alright. then you got Giant Nissan in osborne park on scarborough beach road who are kinda rude but good for parts, total nissan on albany highway near where it meets leach. aaaand last but not least magic nissan in melville on leach highway

genuine is the shit, else ACL.

-troy- Enthusiast

-troy-

Posted
Posted

I vote gasket too.

If your in Perth, then go to MTQ turbochargers in Malaga. They will have any gasket you want.

And your midrange misfire is prolly from a cracked coil or a spark leak somewhere. Pull all your coils out and clean, clean, clean.... and look for cracks.

-Troy

nikdagrik Rookie

nikdagrik

Posted
  • Author
Posted

Just a bit of an update for those of you who are interested....

Gasket has been running fine. I'm assuming the old gasket was the orginal one, so how ever many layers they are, is probbaly what it was.

NO MORE MISSFIRE!!

I'm so happy my car is running sweet now, I just did the old silicone trick, and it works a treat. I've left my cover off though, becuase adding that extra layer wouldnt be good for the heat, but I might put it back on next time I play mechanic.

Thanks for all your help guys!

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