Actuator Plumbing Puzzle!
Turbo Mini Forums

Theres a T Peice in the Turbo compressor housing one goes to the Actuator and the other goes where?

At the moment its on a T peice into the pipe that goes from the pleneum to the top port on the regulator, but not to sure if this is right?

Ta

the spare one you've got went to the boost solenoid i think on the metro. It's blocked off on mine now anyway.

so the connection on the top of the regulator should just be 1 pipe going to the plenum?

And the pipe going from the actuator to the turbo and the other pipe blocked off?

yes

1293 Turbo mini

seconded

Metro turbo weekend driver,Mini turbo in the making again!

So how does the Actuator receieve its pressure signal?

From the T piece that it is connected to.

The other leg on the T piece is then either blocked off, or you could attach a bleed valve here if you wanted.

cheers for all this much needed help!

So if i connect a bleed valve to this spare pipe is there another end which needs to connect to the bleed valve, if you understand me.

for example i thought the bleed valve would go inline with some pipe? So how can i connect it to this spare pipe, if this pipe dosn't go any where?

Also i currently have that spare pipe connected to the top port on the regulator, would this be affecting the turbo or the performance?

Ta

idealy put the bleed off some were from turbo housing and the actuator .

always looking for them bigger bunches of bannanas

yup, my bleed valve is inline with the pipe from the comp housing to the actuator.

So if i block of that spare pipe, and put the bleed valve inline, on the pipe that goes from the turbo to the actuator, that should be ok?

ta

yup. mine works like that anyway...

there are many diffrent ways to plumb the actuator up but they all lead to the same goal.

this is one way simlar to my setup

i personall think that the inline restrictor is
"very important" because you only need a wisper of VOLUME of air to make the actuator work!

as we know it works on pressure

pressure is all you need, why bleed loads of volumes of air off throug the valve wasting this,

when it can be put to good use in the engine internalls.

any way i hate to confuse matters chaps but here goes!

Edited by BENROSS on 2nd Feb, 2006.

ok i've tried blocking of the loose pipe of the actuator and having a single pipe going from the plenum to the regulator.

this dosn't feel like it makes a difference

the actuator is working either way.

going slightly off topic the boost gauge dos'nt seem to be working correctly, no matter where i plum it in, it dosn't go into the positive when coming on boost.

for example i have it tee'd it into the dump valve pipe which goes to the servo take off part on the manifold, and on engine idle the boost gauge flaps around in the negitive and if you accellerate it goes to "0" but never goes to positive??????

Any help would be great!

Post up some clear pictures showing us how you have it arranged.

Try teeing the boost gauge into the line that comes off the side of the plenum chamber. If you tee it into the servo pipe take off you will not get a reading, due to the check valve in the take off from the inlet manifold, which stops the turbo from pressurising the breather system.

(Edited as I was being a numpty and was wrong!)

Edited by Tom Fenton on 2nd Feb, 2006.

you want the dump valve trigger onto the inlet manifold, rather than through the servo take-off as it has a one way valve in it. I've got a couple of extra nipples put on my inlet for the boost gauge and the dump valve.

Edited by Nick on 2nd Feb, 2006.

Would that be the reason why the dump valve dosn't sound as loud as it should?

Also is there a temporary meassure, ie can i put the dump valve trigger somewhere else for the time being?

Who else has theis connected as ben has drawn?

I know peeps who have the actuator connected to the plenum (i.e. me) and others who use a signal from the compressor housing. But I've never seen it connected to the manifold.

I can't see it being a problem, but it does need the extra hassle of a one-way valve.

Wil

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

The only reason I can see for having the check valve would be to prevent any chance of the engine drawing un-filtered air through the bleed valve if running at high vacuum off-boost?

wil i have updated the drawing to the compressor housing and not the manifold
(error made) sorry for any confusion its mi age buddy

tom your right about the check valve but... as we know we dont need one but if you want to look after your engine then install one

So is there anywhere to effectivly put the dump valve trigger pipe untill i get 2 nipples put into the manifold?

T-piece from the manifold. one to the boost gauge and one to the dump valve. This is a permanent solution on my car.

Wil

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

But i haven't got any nipples/connections coming out of the manifold except from the servo takeoff part??