dan69

hi all

need ya help been out in soaking rain trying to find out why my car has no boost.
wasgate isn't sticking, there are no splits in the pipes the actuator seems fine. when i hold my hand on the top boost pipe and rev the car it sucks the pipe in as apposed to swelling it like it should do.
any suggestions on what else i can look for cos im lost now?

Oranoco

Siezed turbo shaft?

dan69

forget to mention turbo spins free both compessor wheels in good condition

James Raby

iTrader: (1)

You have a boost gauge? Also I presume you can feel the power-less of it?

dan69

gonna sort a boost gauge out tommorow but it definately hasn't got any boost just goes like a bog standard 1600cvh!!

James Raby

iTrader: (1)

Actuator rod connected?

dan69

can anything go wrong with the amal valve?

dan69

yeah actuator rod is connected,though not sure if thats adjusted right cos it's wound right in to it's last thread but if anything i would of thought that would of kept the wastegate shut so there would be plenty of boost. i'd ideally like to try another turbo on there so i can rule that out so gonna look on ebay later.

zippyobrien

iTrader: (2)

i wouldnt have thought your turbo would just stop spinning or making boost.

disconnect the amal vaalve as it could be causing the turbo wastegate to stay open, block the hose from the air box, the connect the actuator vcume hose directly to the turbo compressor housing

gee1599

blocked air filter maybe

zippyobrien

iTrader: (2)

or the flap in the metering head my have siezed, of the pipe going from the mereing head to the turbo my have collapsed. have you checked all of the vacumes?

dan69

na don't think it's the filter. anyone got any diagrams or descriptions on how to set the length of the actuator rod correctly? the car is completely standard so only looking to set at around 9psi.

dan69

metering head flap is good, not sure about hose collapsing though would it not still swell when under boost?

zippyobrien

iTrader: (2)

unless your actuator has gone very soggy very quickly it wont make naff all difference. one full turn equalls 0.5psi. lenghthen to increase boost, shorten to lower. order up a -31 actuator and have a go with that.

dont fuck around with it unless youve got a reliable boost gauge (not tim)

dan69

don't suppose you know if theres an intial setting on the rod to start with?

zippyobrien

iTrader: (2)

um, you could measure the length of you old one, but its dodgy. get a recatech boost gauge from burton for £25 and get that pumbed in