Is This Considered Detonation?

[R33Turbo]

Im not really sure what detonation or pinking is supposed to sound like...but all i know is that when it occurs it makes a loud "tick tick tick" or "knock knock knock" sound...

Today ive been kind of thrashing my car during quite a hot weather on about 10.8 psi...After i brought it in to a garage for cooling i just opened the bonnet, and it gave out a "tick" sound but it wasn't constant, then a minute later it gave another "tick" sound coming from the turbo side of the engine i THINK?? Then later it didn't happen again but im just worried thinking maybe its just the start of my turbo detonating or maybe because its just a hot weather its making those sounds...

When det/pink does occur, will it happen constantly? and when it does will it only give out sound when turbo is at boost? or does it also occur at vaccum (car stationary)?

What do u guys think?

[cheez]

a) its not pinking, its PINGING

b) the ticking noise is the engine components returming to size as engine is metal and with heat it slightly expands. nothing to worry bout.

[R33Turbo]

heheh pinging aye? i just got confused cuz whenever i said pinging before some told me its PINKING then when i say pinking some say its pinging so i get confused...so i use detonating now

Anyway it ticked whilst the engine was ON not off by the way, if that changes anything?

When det/pink does occur, will it happen constantly? and when it does will it only give out sound when turbo is at boost? or does it also occur at vaccum (car stationary)?

Edited October 20, 2007 by R33Turbo

[dmr]

the ticking is just exhaust/engine heat like dan said, and will happen when hot, cold, on or off. it's completely normal.

engine pinging/detonation/knock will mainly only happen at high revs when the air/fuel ratio isn't smooth. beleive me, you'll know when your engine starts pinging!

[SECURITY]

think of the sound ping makes as someone throwing a handfull of sand at the front of your car. you'll only really notice it while moving unless somethings really f**ked up with your tune.

[R31Nismoid]

If you popped the bonnet in the gargage - it wont be detonating mate, your motor would be dead if that was the case in the gargage

You'll only find this occurs under load, or if a fuel pump dies in which case it wont last long anyhow and stall.

I bet you have a dead manifold gasket. Nothing more.

Common problem, go see your mechanic to get it fixed

[R33Turbo]

thanks guys...

[R33Turbo]

Is it possible to tell whilst driving if the manifold gasket is blown? Does it have any sound like "winding" or "leaking"?

[R31Nismoid]

Just lift the bonnet, head near the turbo.

If you hear a ticking noise, thats gasket.

[R33Turbo]

what type of ticking noise? cuz the engine itself makes all sorts of noises close to ticking as well....

Is this ticking noise loud or weak? is it metallic? can i get an example like "clock ticking" or something?

thanks so much i appreciate it....

[R31Nismoid]

Mate i honestly think your better off visiting a mechanic that deals with Skylines.

Get him to show you in person so you know for the future.

What something sounds like to one person, might not mean the same to another

cheers

[R33Turbo]

Thanks Nismoid i appreciate your help anywayz... Im happy its not the ping, and also im pretty sure it ain't the gasket cuz i just took it for a drive and it didn't seem to lose any power at all (cuz i thought u lose power when the gaskets blown)...Also i turned the engine on and it gives out a "tick" (sound like when a sheet of metal bends, then bends back the original shape), and even after i just took it for a drive it gave it...But the gasket blowing im assuming should be constant "ticking" sound from that area under the bonnet???

[kiwi32]

A random loud tick can also be a lifter gettig a bit lazy.

[SevenAngryPenguins]

my injectors tick (not sure if thats normal) give the car a rev and as the revs drop back to idle they stop ticking and start again when the car reaches idle rpm