Seaway Posted March 1, 2015 Report Share Posted March 1, 2015 The ongoing saga of the blue smoke from my 1998 V70 T5 while boosting seems to have finally been resolved. I took the intake and downpipe off the turbo to check for shaft play and there is a lot of movement back and forth as well as some side to side. The movement back and forth is enough to make a clicking sound, and I would estimate the movement to be easily 1/8", maybe more. The turbo is a 16t. I have another turbo to install and I was wondering if anything other than the oil return line gasket and o-ring should be replaced when I install the other turbo? Oil return line? Coolant lines? Etc? I don't know why the turbo failed, but would like to avoid another one failing. I do know that I can now explain the weird whine I heard the other day as the car was idling. Link to comment Share on other sites More sharing options...
bob82pigdog Posted March 1, 2015 Report Share Posted March 1, 2015 Copper crush washers for coolant lines would be a good idea to replace, too. Link to comment Share on other sites More sharing options...
Seaway Posted March 2, 2015 Author Report Share Posted March 2, 2015 Ah yes, just ordered a bunch, thanks! Link to comment Share on other sites More sharing options...
TryingBe Posted March 2, 2015 Report Share Posted March 2, 2015 Side to side play is normal. In and out play is not. In and out is usually cause by a non working cbv/bov system, and or partially clogged catalytic converter. Link to comment Share on other sites More sharing options...
Seaway Posted March 2, 2015 Author Report Share Posted March 2, 2015 It definitely has a lot of in and out play and some side to side. I don't think the cat is clogged as I have no symptoms. Car runs fine and has plenty of power. Nothing rattles when it is moved either. I know this because I disconnected the exhaust today to check the turbo. I suppose it could be partially clogged, but it just passed emissions a little while ago with numbers "like a new car" according to the tech who did the test. Not sure about the cbv, but the turbo holds boost with no problem. I am running a tuned ecu at 16 psi, 3" exhaust, Japanifold, snabb intake and all silicone hoses. Everything seems to work as it should, it just belches smoke when boosting. Link to comment Share on other sites More sharing options...
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