What The f**k Is Wrong?

[craig R33]

no, i have an air compressor so will try it tomorrow.

i didnt do it cos im not sure which hose to pump air into.

[dangerman4]

yes i have done it several times,

if you double the bag over it will hold nearly 2 bar.

2 bar coming out thru a leak makes a loud noise so its easy to find and then fix.

who knows he may have 3 or 4 leaks.

i know last time i did it i had 2 leaks

in regards to which hose it dosent matter as long as its a vacum hose.

ie the fuel reg, a ebc, bov line, they are all about 3 - 5 mm inside diamater which fits snuggly over your air comp nozzle.

simple tight seal that you dont need to hold onto

just charge it up with a couple squirts of air and then go hunting for leaks.

Edited September 30, 2008 by dangerman4

[craig R33]

ok, will do after work tomorrow.

cheers for the help

[Sinful]

Just had this problem on a mates R34..

I know its a pain in the arse and a bit late now if booked into Morpowa Thursday..\

but we :

Took exhaust off to see if it was blocked... it wasnt cause was still idleing shit with it off.

He then pulled all the vaccum lines and intercooler piping off and check for cracks, perished lines.

He could also hear a air leak like you and eventually found that the O rings on the injectors had perished and sucking in air..

Have you check that the actuator on the turbo is attached correctly? Had them come loose in the past also

Good Luck!! these things definately test your patience

[craig R33]

yeah the leak is coming from the left hand side.... could well be the injector seals

[4door_Sleeper]

If you get a length of garden hose (about 1m) you can hold 1 end to your ear and the other you poke around the engine bay (running or not). It will act like a doctors stethoscope and help you accuratly locate noises (vacume leaks) in places you can't/won't get your ear to.

[craig R33]

i did the compressed air trick, but didnt hear

any leaking air, so its looking to maybe be something worse?

not happy

[nisskid]

did u check the lines off the plennum? they are after the TB so the test wont reach the plennum if that's where the issue is.

[craig R33]

yeah, i tried 3 different vac hoses, before and after the plennum and on the turbo side of the engine.

im just bout to drop it off to morpowa, they looking at it tomorrow.

[ted180]

like sinful said, injector o rings sounds like something you should check.

[craig R33]

its at morpowa now, ill leave it in ther hands like i should have done from the start.

fingers crossed its not something internal

[dangerman4]

did u check the lines off the plennum? they are after the TB so the test wont reach the plennum if that's where the issue is.

ummm think about it...

if his pumping air into a vac hose they all come off the plenum,

so therfor the whole system is full of compressed air both before and after the throttle body, its not hard to open the throttle if

your concerned about the air getting past it.

does your car sound a little like a wrx at idle?

as there were no air leaks my finger is pointed at the ringlands.

at least one piston, probally several of them.

rebuild time.

[craig R33]

^^ thats what i was thinkin mate, would that explain the f**ked up sound on boost?

this just happend to my mates 33, ringland, and mine sounds almost identical

[ovrtym33]

^^ thats what i was thinkin mate, would that explain the f**ked up sound on boost?

this just happend to my mates 33, ringland, and mine sounds almost identical

IM SORRY 2 SAY CRAIG BUT REBUILD = BIG$$$$$$$$$

OR JUST PUT A 2ND MOTOR IN THEN f*k THE CAR OFF

[nisskid]

lol at rebuilds and serious issues.

if it's serious u will see a lot of light bluey grey smoke, if it's black u can be almost guarenteed its a little stupid niggling issue any decent shop will pick up on within a few hours if that.

[Carbon 34]

sorry to here u didnt find it mate, the squirt bottle trick works to find the o ring issues on the injectors, the mist of water cause the cyl to miss fire and you can hear it in the idle easy. same thing for leaking vacuum lines and gaskets.

what colour was the smoke ?

did u notice i described the types of smoke and main causes for them earlier in the posts?

working on race cars for years i know a little bit about them....lol more then i care to sometimes...lol

but since i didnt win the lotto i have to wrench my own cars except warranty stuff.

good luck mate

[ovrtym33]

i had a workshop blow piston 6 ringland on the dyno, when driving it home it it was lumpy as and it just wouldnt hit boost but didnt blow any smoke at all

im sure simon at morpowa will find the problem 4 u craig

[DSTROY]

when my rb20 did a piston, i only noticed cos of the weird sound at idle, boosted hard for the months i drove it around till i did the conversion. It never made the the sound your talking about under boost, def sounds like a turbo/zorst leak.

[craig R33]

the smoke looks black as it comes out, but turns greyish as it floats off....

ill just have to waitand see what simon says, hopefully ill get some sleep tonight

[craig R33]

fuxored turbo wouldnt cause foooly sick wrx style idle