help needed on blown turbo etc

[gurrturbo]

hey people,

i had my turbo go on me the other day whilst on the motorway. obviously had the usuall huge amounts of smoke pouring out the back. now i have changed the turbo which i got from a friend of mine who has a starlet but cant seem to get it to boost. it worked when it was on his car as i helped take it off after some one went into the back of him. does anyone have an idea of why i have little/no boost. u can hear the turbo dump ever so slightly and spool up. but still only bosting 1 or 2 psi! help would be much appreciated! cheers

 

[GTdan]

ctuator connected? vac lines ok?

 

[gurrturbo]

yeh actuator is connected. vac lines are fine.

 

[GT-TD04]

sounds like a boost leak imo,double check the lines on the acuator and the turbo,then the dumpvalve, then the intercooler pipes

Dan

 

[GTdan]

wastegate ok?

 

[gurrturbo]

i have checked all the above i just can get my head round it! the wastegate had a tiny crack in it but it didnt affect my friends car i have been pondering on it for 5 days now. had my intercooler all cleaned and new clamps for it checked the actuator pipe. never felt so useless

 

[dantheman]

cant be hard to work out mate. not many things it can be, more than likely a boost leak.

did you put the gasket on the turbo where the metal pipe bolts to, that goes to the top mount?

 

[GT-TD04]

Maybe you damage the acuator on the turbo when you removed it,whats different on your set up to his?

 

[gurrturbo]

yeh got that but i have a front mount. thats what i thought cant be alot of things to stop it spooling! thats why im so confused.

 

[gurrturbo]

the only difference is mine has a front mount and a hks actuator and his was running standard

 

[dantheman]

its not ganna be a mystery problem mate :haha: theres only few things it can be, look harder for boost leaks!!!! check ALL boost pipes. :teach:

 

[GT-TD04]

the only difference is mine has a front mount and a hks actuator and his was running standard

how was your acuator on your old turbo?
Do you hear a whistling noise when it comes on boost?

 

[gurrturbo]

actuator was fine on mine. i can hear a slight whistling when it does boost and a slight dump but obviously its only boostin max 2 psi

 

[GTdan]

whistling indicates boost leak - check all pipes on fmic - one wont be sealed proply.

 

[gurrturbo]

thought the whistling was my turbo spooling as im not running the efi pipe just a 90 bend and a air filter

 

[GTdan]

possibly but still reckon its a leak.

 

[gurrturbo]

if it ends up being just a leak im will be so pissed as i have check so many bloody times. it felt like i was towing a tank when i drove it, and i hate seeing it just sat on my drive. do u think there would be enought pressure lost for a small leak for it to only boost 2 psi?

 

[dantheman]

easy way to tell if its a boost leak is to pull the vac pipe off the actuator, and CAREFULLY boost it up, (i say careful as it will run unlimited boost)

see if you can get more than 2psi. if you still cant then you can bet ya boots its a boost leak :kiss:

 

[gurrturbo]

have tryed that didnt work still only 2 psi.

 

[GT-TD04]

wastegate problem