Hey guys I think I've piped the vacuum lines wrong cause the fuel tank is now popping and is under extreme vacuum if I try open it when engine running.

If someone could please tell me the exact way all the pipes go il be forever indebted. Especially the ones that go to the boost controller the diagram makes no sense.

 

None of these lines / components have anything to do with the fuel tank. The lines / components shown are for switching the waste gate on and off --- the ECU varies its "duty cycle" to control boost. The tank shown is mounted on the lower rear side of the engine, below the intake manifold.

Your lowest arrow connects to the vacuum pump, not included in the pic. That line connects to #2, a vacuum switch, either side. The other side of #2 connects to #1, a vacuum reservoir tank, again, either side. The other side of #1 connects to the turbo's waste gate. The switch doesn't care which side is input or output and neither does the tank (your upper arrow).

I'm not sure why you would want to open the fuel tank with the engine running, but it doesn't sound like a good idea. Same with the lines in question.

 

Thank you so much, the reason I was opening the gas tank when the engine was running is cause I can hear its not venting so I thought the only logic was that these vacuum lines were piped wrong and sucking vacuum.

I guess that might lead me to the fact my tank vent is going crazy cause you can actually hear the tank popping.

 

If that's happening, chances are that you have a plugged vent line or a check valve that's stuck.

 

Yea, the vacuum lines are here:

https://www.northamericanmotoring.co...-oil-leak.html

Pressure converter here:

https://www.northamericanmotoring.co...ing-off-2.html


The tank makes a normal noise of expansion, like a thud... thud .. after you fill it up and also when it get warmer and the temp changes. Sometimes you will here the rear leak pump kick on.

It that what you hear ?

 

is this accurate? seems off to me...

 

i know this an old thread, but i really need a good diagram for the vacuum lines. the one from realoem sucks and doesn't really help at all....

 

Thats the diagram i have, but if you dig through the TIS there are some parts of the DIY:
https://www.newtis.info/tisv2/a/en/r...epair-manuals/

 

oldbrokenwind had it backwards.

it goes: From vacuum pump to the vacuum tank underneath the intake manifold. from the vacuum tank to on the pressure converter. from the pressure converter to the wastegate.

also, the tank is non-directional, but the wastegate (the larger tube) is designed to go to the inside nipple (the larger of the two) on the pressure converter.

 

There now --- that wasn't so hard was it. Different diameter hoses and fittings, different length hoses, and any possibility of mixing up a pair of hoses really doesn't make any difference. Actually, my Garrett doesn't use any of this stuff --- it was disconnected and boxed up in my garage several years ago. My original reply was over 2 years ago, and my memory hasn't improved even a little bit.

Hopefully, after figuring out how to connect your hoses, you have a better understanding of how the wastegate functions.

 

how did you guys do your turbo charger vacuum lines ? did you have to pull the intake manifold ?MINI Cooper R56 Turbocharged Engine Intake Manifold Replacement (2007-2011) | Pelican Parts DIY Maintenance Article i can't get my eyes on part #2 of that diagram thanks, car is apart now i have the thick long hose a short hose to attach to the vacuum switch.

thanks

yes i ended up pulling the intake manifold off to do the job, and check the vaccum res. box as well. vaccum lines were bad. had to wait 3 days for new intake gaskets