Ticking sound From the Turbo side of the engine

[Kaido_RR]

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

[iBd14U]

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

[Kaido_RR]

Hey, IM in perth

my car is an r33 gts-t

with cat-back exhuast (possible aftermarket front pipe)

bov

r34 gt-t cooler

air-fitler

could possible be the problem, anyway to check? (without taking it anywhere)

[iBd14U]

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!

[Kaido_RR]

cheers will get it checked out asap

[Kaido_RR]

is it safe to drive..?

[GTRgeoff]

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.

[Kaido_RR]

thanks geoff, that was in the back on my mind and i was hoping it wasnt the case, but then i think about it my mech did say something about hearing a sound to tell if the engine was ***ed

cheers

[wrxhoon]

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]

thanks wrxhoon, i will do that test

[Kaido_RR]

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

[Abo Bob]

I think its the gasket that goes between your turbo and manifold. Mine spat a chunk of it out and did just as you describe.

[Ahh32]

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.

[WazR32GTSt]

wow 2 very opposing opinions:

something small like a exhaust leak

something MAJOR like a big end bearing

your local tuner will know exactly what the problem is so take it there...

[Kaido_RR]

im going for my tappets, but the car will be check out 2morrow so i will know then

[performance-wise]

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!

[Kaido_RR]

Problem found

yes it was an exhuast leak, need to replace gasket and maybe this is time for a new turbo

[GTRgeoff]

Great to hear. Always prefer the cheaper, less damage option.

[Ahh32]

woo hoo.. i win

[carlo]

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