R33 Gtst Problem

[mistermeena]

Few dramas with my new skyline that I can't figure out. It's an r33 s1.5 gtst and my first turbo car.

I've just changed the plugs and rocker gaskets, and compression tested, which all went well. Compression was very close to 180psi on all cyls so pretty happy with that

So just started it up after doing all this and noticed a weird bubbling sound in the airbox. Quite sure the sound wasnt there before but could be wrong on that. I dunno how else to describe it, but its noticeable when i have my ear close to the air intake. I'm quite confident its not actually water boiling, just sort of sounds like that. Car isn't overheating or bubbling in the overflow etc. It seems to idle and rev quite well, though I notice an occasional pop from the exhaust once it gets up to temp.

Any suggestions/help?

[Mick]

that bubbling sound is normal mate, mine does it sometimes, i think its just air being pushed through the lines

[mistermeena]

Yeah sweet thanks mate that's a bit of a relief lol. I had another poke around and I wondered if it might just be a noisy pulley bearing reverberating through the pipe.