Quote:
Originally Posted by zac123
Howdy Volvo lovers,
fitted a new turbo to my V50 this weekend. the bearing had failed on the old one and was making a hell of a noise.
stupidly i did not adjust the actuator arm on the new turbo to match the old turbo when i installed it and now i'm finding the new turbo doesn't boost up quite as much as the old one.
can anyone tell me which why i should twist it to increase boost.
clockwise or anti clockwise.
here is a picture of the old turbo in the correct orientation.
thanks
zac
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That core doesnt look new.
If you changed the core then the actuator arm should not of been moved only un-clipped from arm.
What may of happened is vnt tirbos work with the vacuum pulling the arm to the grub screw stop in your picture you must change this if the actuator arm length has not changed.
The grub screw stop is the start of where the vnt mechanism starts from if its not starting from the correct position then the cheese wedges of the vny will not be directing exhaust gasses onto your turbine correctly.