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Ticking sound From the Turbo side of the engine

Kaido_RR

By Kaido_RR,
in Engines & Forced Induction

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Kaido_RR Grand Master

Kaido_RR

Posted
Posted

hey,

Today my car started making a ticking sound (loud, very audioable when driving) from the turbo side of the engine. It happen when on gas, fast, slow whenever i am on the gas i hear the sound, also if i put the foot down and go up into the rev range it sounds like its getting faster. It doesnt do it on idle, thou if i rev it it sounds to only make it around the 3/4000 rpm mark (the same spot my bov starts going off)

Now with all this in mind, on monday, my Oil line from my turbo to engine blow (was rubber not metal -- dont ask me) now i lost 4L of oil, my mech replace the line with a stock metal rb line, refill with oil and the car was given the OK that everything was working

Now from my limited knownage, i think it might be the turbo, its boosting fine and making power but it sounds like the ticking is related to the spinning of the turbo wheel (guess?)

I will have the car check out on monday (or maybe 2morrow), But if i cant get it in 2morrow it will wreak my head in untill monday can anyone help

thanks mike :D

iBd14U Enthusiast

iBd14U

Posted
Posted

Hey

I've had the same problem with my car. Does you car have a full exhaust system? This normally happens when you have a cat-back exhaust. You build too much pressure and you blow out one of the gaskets. So as you rev higher you can hear it louder as it is leaking more air. Try getting an exhaust specialist out. Are you in sydney? Give me a yell if you are! Got someone that can help!

Phil

iBd14U Enthusiast

iBd14U

Posted
Posted

Yeah most likely its gonna be the one of the gaskets. I've blown one before and in the verge of blowing another one. Just get your car checked out by an exhaust specialist. It should cost around $300 mark. If you know the guy you might get it cheaper!

GTRgeoff Grand Master

GTRgeoff

Posted
Posted

If it was the turbo it would be a very fast noise, almost a buzzing but if it is a ticking and you lost that much oil I'm considering a big end bearing. Get it checked fast and don't drive it unless you have to. The bearing and journal can sieze causing a conrod to snap which will destroy your engine.

Sorry if it sounds over the top but it isn't worth destroying an engine. I had one in mine and the ticking/tapping noise was quite loud in the garage and seemed louder on the left side.

Drop the oil and look for golden coloured metal specs and flakes. If they are there a bearing is going. In that case a rebuild is needed, probably with a crank and conrod big end grind. Sorry to say will be expensive if it is but you get to rebuild a decent engine that will last ages.

I hope it is not that bad but from what you say, it seems pretty clear.

wrxhoon Grand Master

wrxhoon

Posted
Posted

michael ,

it sounds like a big end sorry to say mate .

do this little test . when the engine is cold ( stone cold ) start it up and listen for the noise, it should be very mild while the engine is cold ( thick oil takes up the slac on the bearing ) .

when the engine and oil gets to normal operating temp the noise will get louder , if thats the case then its a big end .

Kaido_RR Grand Master

Kaido_RR

Posted
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Posted
michael ,

it sounds like a big end sorry to say mate .

do this little test . when the engine is cold ( stone cold ) start it up and listen for the noise,  it should be very mild while the engine is cold ( thick oil takes up the slac on the bearing ) .

when the engine and oil gets to normal operating temp the noise will get louder , if thats the case then its a big end .

ok i just did that test, the sound is louder when the car is cold, when the car comes to normal oil/rpm/temp it becomes very quite and u can bearly hear it. give the car a few revs and it comes back for a few seconds :s

i am very confused

performance-wise Grand Master

performance-wise

Posted
Posted
exhaust leak, most probably the manifold bolts/studs loose or broken or about to break.

tighten the bolts up, but there is a fair chance that some might break so take care.

Apparently this is a common flaw with the rb engines - dodgy exhaust manifold bolts!

carlo Veteran

carlo

Posted
Posted
exhaust leak, most probably the manifold bolts/studs loose or broken or about to break.

tighten the bolts up, but there is a fair chance that some might break so take care.

The botls snap.. I had EXACTLY the same thing happen to me at wakefield park. Turns out my exhaust manifold had a slight warp in it and had snapped 6 of the bolts. Its very common on skylines

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