Funny Ticking Noise. Can Only Be Heard Under The Car

[WogsRus]

Ok so i have had this ticking noise, not a knock or a tap, a tick, like as if you were listning to an old grandfather clock, except faster.

The car has done 80K, and has always been serviced even in japan, i got all books and so forht. The engine has good compretion 150psi across all cylinders. Engine makes great power over 200 rwks, and is always warmed up and cooled down.

It does not blow any smoke or use oil or watter.

Now i know the tappet tap, i can hear those, the injectors are noisy, common issues, no probs there.

But this sound can only be heard under the car, on teh turbo side, and possibly towards the rear, hard to tell. it's a faint tick. You can only hear it under the car, and if you are driving slow in a carpark. I do not know if it gets lowder when you go faster, cos it is faint.

I think the sound is the same on cold or hot starts, i think. I have tried to listen with ahose to see if i can pinpoint the noise but no good.

Now i have did find two louse studs on the manifold did these up. so far i have not found any other. The manifold sustds are all there.

The clutch throw out bearing has been replaced, and sounds fine.

No i don't know what this can be, as it can ONLY be heard under the car.

Can someone with a simmilar problem give me some ideas ????????????

What are teh signs of a big end about to spin?????

HELP I am going to go insane i am to anal about cars. LOL

[Gazee]

Ok so i have had this ticking noise, not a knock or a tap, a tick, like as if you were listning to an old grandfather clock, except faster.

The car has done 80K, and has always been serviced even in japan, i got all books and so forht. The engine has good compretion 150psi across all cylinders. Engine makes great power over 200 rwks, and is always warmed up and cooled down.

It does not blow any smoke or use oil or watter.

Now i know the tappet tap, i can hear those, the injectors are noisy, common issues, no probs there.

But this sound can only be heard under the car, on teh turbo side, and possibly towards the rear, hard to tell. it's a faint tick. You can only hear it under the car, and if you are driving slow in a carpark. I do not know if it gets lowder when you go faster, cos it is faint.

I think the sound is the same on cold or hot starts, i think. I have tried to listen with ahose to see if i can pinpoint the noise but no good.

Now i have did find two louse studs on the manifold did these up. so far i have not found any other. The manifold sustds are all there.

The clutch throw out bearing has been replaced, and sounds fine.

No i don't know what this can be, as it can ONLY be heard under the car.

Can someone with a simmilar problem give me some ideas ????????????

What are teh signs of a big end about to spin?????

HELP I am going to go insane i am to anal about cars. LOL

Yea i've got the same problem... would be good to know wtf is it...

[frogstomp_R31]

exhaust gasket is farket or turbo gasket is gone i had same problem on a ca18det ticked and went like a dog fixed the turbo gasket and gone like that just a thaught

cause if two studs were loose its probably damage

the gasket

[R31Nismoid]

yep, just the gasket as above.

Nothing major, and pretty common issue.

Make sure you replace it, and ALL of the manifold studs/turbo gaskets at the same time so it doesnt happen all again

[WogsRus]

but the tubo pulls great, boost like there is no tommorow, i wish i could recod it.

I am going to go over all the agskets to have a look.

so does teh gasket cause a fain tick, tick tick????

[WogsRus]

I just realised how bad my spelling is, sorry guys, I’m a wog.

[R31Nismoid]

Yep it causes a ticking, as two people have told ya

It will still boost for now, it will get worse though over time.

Sometimes 2-3 months

[WogsRus]

thanks guys,

how much are gaskets for the manifold and so forht?

I guess new studs while i am at it?

[frogstomp_R31]

in adel 110 from nissan

[WogsRus]

well i went over the car, and well no ticking when cold, only when hot. Went over all the bolts, all tight. I think it's the manifold, as when you close the bonnet, its a bit louder.

Dam it.

[someonestolecc]

too_much once told me a technique that works well.

Get a garden hose and stick one end near your ear and point it around the manifold.. should be able to hear it real good

[paulr33]

check oil level and oil pressure ?

[WogsRus]

yepp taht trick is the one i used, my dad told me how to use it properly, works dam well too.

I have checked the oil pressure, all fine good oil pressure, new oil, and the ticking noise can't be heard anywhere on the engine, not bearings, not block no idea. so i think its must be my exhaust.

ohh well wait till it shit me too much.

Edited February 21, 2007 by WogsRus

[BAMR33]

My internal wastegate made a similar noise when I got a hi-flowed turbo. So I just bought a tensioner and welded it to the actuator rod to put more tension on it, worked fine and adjusts boost (like the hks items). Probably not this as you haven't changed your turbo but something to check none the less.

[Pauly33GTS-t]

I'll tell you now I had that same noise. I recently got my GT3076R turbo on my car and in the process they changed manifold bolts (heads broke off and screws stuck in thread), manifold gasket (that was completely f**ked to high heaven) turbo and a few exhaust gaskets and the ticking noise was no longer an issue.

[WogsRus]

Thanks guys, yeah i am sure it's an exhaust, i found some black burn marks arround, evidence of exhaust leaks.

I wish i got my warranty now. LOL. Oh well, looks lika a weekend job.

Gettign some pricing today, but where is the best place to get manifold gasket from. nissan is about $100 i think.

[Pauly33GTS-t]

GET THE NISSAN AND NISSAN ONE ONLY. yep ur on the mark 100 dollars.

[R31Nismoid]

It'll be a few hundred very quickly

* All manifold studs changed out

* Manifold gasket

* Turbo & Dump gaskets

Also note, your more than likely going to snap a stud or two. Its just the nature of the beast.

Use LOTS of WD40 or similar a few hours before you start if DIY from home.

If your paying a workshop do to it, its going to be close to a 600-800 advanture i reckon by the time its all done.

[WogsRus]

are the other ones shit or something?

I have heard that Sparco have good ones.

How do i tell if it is a good one? Anyone have had bad experiance with non genuine ones or something?

[WogsRus]

Thanks R31nizmo, but i'll be doing all the work myself, this is a piss of piss compared to some of the jobs. Allthough i am only a mechanical engineer, having worked on car's since i was 9 and dad did rallying in Europe, this is nothign new.

Well new in the sence that it is a Skyline, and haven't delt in turbos before, it's a bit more complicated, hence the barage of questions.

I have the manual and all the tools, so i figured i can't stuff it up to much. LOL. here's hoping anyway.

So far costs are

Exhayst gasket manifold = $100

turbo to manifold = $ 15

turbo to dump = $23

Stud kit and new nuts and washers = $38

Also will replace copper gaskets on teh turbo, but have not got price as yet.

Total = $176

Hideen charges

Beer = $30

Bandaids = $5

Trip to doctor for scuffed knuckels = $30

Knowing you did it yourself = pricless.

LOL

thanks guys.