Finding a Boost Leak

[Forbez]

I've searched the Net, and found numerous websites, and info on how to determine if I have a boost leak. But none with any good idea's of how to locate the boost leak.

Some say to spray, soapy water and look for bubbles, others say to spray starter spray and listen to the engine.
Another mentions filling the system with smoke and looking for the smoke coming out of the system.

As far as i can see, i've checked all of the piping on the Ibiza's including the FMIC tubing and connections and I can see no leaks.

I'm gonna try to check the TIP tonight, but cant really see it being the problem, as all seems to be ok with that.

Does anyone have any suggestions or idea's, or can anyone highlight or point out any boost pipes / hoses, just so i can confirm that I have checked them.

Cheers

 

[PhilW]

Personally i'd connect the N75 hose to an air compressor and blow down 15psi. As you dont have any oil breathers on your pipework you wont need to block any. Connect it up and listen for leaks.

Another question, have you checked all connections on the tip?

 

[Forbez]

Yeah, but i'm gonna recheck them tonight Phil, I remember there being a problem with a 1st batch of TIP's, so will check it again.

Gonna double check its securely on the turbo too.

 

[p34ch3y]

Personally i'd connect the N75 hose to an air compressor and blow down 15psi. As you dont have any oil breathers on your pipework you wont need to block any. Connect it up and listen for leaks.

Another question, have you checked all connections on the tip?

which hose off the n75 the one that comes off the turbo or the one that gos into the charge pipe over the engine

 

[PhilW]

Charge pipe so it fills the pipework with pressure like the turbo does.

 

[p34ch3y]

thanks phil gunna try that on mine

 

[Forbez]

Phil does your mates garage have a compressor?>?

 

[David_smith_909]

Read a few times now about your probs, read what you have checked but you never mention your actual dv itself?? you checked that?? (obvious i know, but sometimes you dont check things that are "too" obvious)

all connections airtight on your tip??

most leaks on vac and ic are easy to spot, others can be more of a biatch !

 

[Forbez]

Yeah DV is fine, leak back test done, with no probs.

As far as i can see everything seems ok, but its not. Gonna tripple check the TIP again tonight.

 

[David_smith_909]

Yeah DV is fine, leak back test done, with no probs.

As far as i can see everything seems ok, but its not. Gonna tripple check the TIP again tonight.

aah cool
sounds like a plan ......

 

[PhilW]

Makes sure your car is out of gear as well. And put the handbrake on.

 

[Forbez]

Checked and no luck, have replaced previously replaced Vac hose, and still the same.

TIP is ok, hmmmmmmmmmm

 

[David_smith_909]

you got a oil catch can??
its not leaking where you have plugged the tip is it??

 

[Forbez]

Nope mate, thats securely plugged.

 

[Forbez]

Hmm car seemed to boost ok this morning, then the EPC light came on. (First time thats come on during all problems.) After a while boost had gone again, and a minute or two later, EPC disappeared. Will double check the hoses shortly, as one may have come off.

 

[PhilW]

Any codes? EML on?

 

[p34ch3y]

look what i just found

well thats my leak sorted but i recon the n75 is down because its a bit laggy

 

[Forbez]

Grr i cant see photobucket anymore!!!

No Phil, no EML, unsure of fault codes, as laptop is back with parents. Will check later.

 

[Craig1985]

Can the N75 make it laggy then?

 

[p34ch3y]

yea can do m8

my maf is fine so i may be the n75