TGV tumbler group valve

Having issues with your ride ? Ask away in here ...
Post Reply
Brettburu
Junior Member
Posts: 1
Joined: Wed Jan 19, 2022 5:36 pm

TGV tumbler group valve

Post by Brettburu » Thu Jan 20, 2022 7:55 am

Hi all trying to get a bit of technical advise thanks. I have a 2006 outback with a ej253, manual. It recently overheated, cracked radiator, done a head gasket. I have cleaned the valves, lapped them to seat better, machined gasket face, new head gaskets, radiator, water pump etc etc. All back together and torqued correctly. The car starts, rough idle, revs ok. Check engine light refers to stuck TGV passenger side. I took the sensor off (front) and found the TGV shaft hard to turn. Used pliers until it freed up. Put the sensor back on under tension (90 degree) turn to load the spring. Still a tapping sound. I have unplugged the cables from both the sensor and the motor, either end of the TGV shaft, and still tapping. My question is, with both of these unplugged, no power, my thoughts are there shouldnt be a tapping sound? Unless it flaps under a vacume. Maybe I have better check the valves / rockers? Cheers all. Brett

User avatar
TOONGA
Elder Member
Posts: 5335
Joined: Sat May 30, 2009 10:15 am
Location: Australind closer to where they divided by zero
Contact:

Re: TGV tumbler group valve

Post by TOONGA » Tue Jan 25, 2022 9:50 am

easiest way to deal with TVG's is to delete them

this is an old article but it is relevant

https://forums.nasioc.com/forums/showth ... ?t=1663677

TOONGA
Image
PJ Gone but not forgotten
JETCAR AKA the sandwedge Rusted in pieces

Post Reply

Return to “Trouble Shooting”