wrcwrc

Completely stock RST.

Since ive owned it, it has only run 5 psi, im looking to try and get this sorted out now.

At some time in its life the amal valve has been bypassed and now runs a bleed valve on a hose that is between the turbo, and the actuator.... BUT no matter which way i wind this the boost doesnt change! Ive even taken the bleed screw right out and the boost still doesnt change.

Tried adjusting the nut on the actuator.... it WAS right up against the solid black bit by the wastegate, is this adjusted so it ran minumum boost or maximum???? anyway so i wound it out so i had a gap of a few mm's between the nut and the black bit BUT the boost only seemed to go DOWN a psi or 2? Is this right?


The arm on the wastegate moves about 45 degrees, but does get stuck when trying to return?


Has anyone had this problem before?


I think im either looking at a weak actuator, or the wastegate stuck open :'( im hoping its the actuator.



Can anyone shed any light on this PLEASE???

rapidcossie

mins find its jammed in a semi open postion mate?

vroooom ptssssh

Sounds like the actuator is holding the wastegate open? which would maybe not let it boost past 5psi!

Not sure about what to do with the actuator tho

Rick

hi mate. it needs another actuator, as if it has been wound right in or out, it knackers them. The bleed valve should make a difference though, as it effectively drops the pressure that the actuator sees.

I've just thought - what are u doing to the actuator. Do u know it needs to be off the wastegate to be adjsuted? The nut is a lock nut, and doesn't do anything. U take it off, and twist the bracket that clips onto the actuator - shorten it to increase boost.

wrcwrc

ive basically just gone under the car and adjusted the nut..... it was butted up right against the black bit of the actuator rod that meets the wastegate arm.... so i wound the nut out to effectively make the actuator rod 'longer' and thus hopefully thus make it push the wastegate arm further closing the wastegate more, equalling more boost.... but it didnt?.

the rod does 'push' on the wastegate arm to close the wastegate right? it doesnt pull?

ive wound the bleed valve right in, and the right out, it makes no difference..... it is in the connecting hose between the turbo housing and the actuator.... thats the right hose yeah?

Rick

yes it does push. but u aren't altering the length by turning that nut, u have to take the rod of the wastegate.

wrcwrc

ok i'll give that a go.

does it not have the same effect by turning that nut?
i.e. making the rod longer????


im just getting worried that it is the wastegate that is seized im hoping so much that it is the actuator.

Rick

no it doesn't have the same effect. When u take the rod off (and it's much easier with an airline/pump) - the wastegate should move really easily.

sandyRS16i

iTrader: (1)

turning the nut does nothing......

As said, take off the actutor and turn the outer part of the rod, if you wind it in, it will move along the threads and increase boost......only do this gradually tho and check the boost on a gauge.....you dont want to cause any damage by truning the boost too high, especially if you have a bleed valve as well....

If this makes no difference, it sounds like the actuator is needing replaced....

AndyRST

can you pull the actuator in and out? If so its weak and needs replacing. You shouldnt be able to move it

SafeChav

Sounds like its knackered anyway if hes taken the screw out the bleed valve........turbo should destroy itself.

You may well find the wastegate is cracked......

wrcwrc

thats the last thing i want.

so, the black bit at the end of the actuator rod that connects to the wastegate i need to wind that out (away from the nut) right??? - basically then pushing the wastegate shut more...... and that 'should' show an increase in boost....

and if it doesnt im looking at a new actuator and not f*ckin about with the wastegate?

oh and yes, i can move the actuator rod in and out by hand.



cheers guys.

AndyRST

Thats proper knackered then. You shouldnt be able to move it at all

SafeChav

Agreed that should be fucking hard to move by hand.

wrcwrc

ok ta lads. cheers for the help.


will scource a -31 actuator from somewhere. might aswell uprate it if this one is broke!