Turbo bearing leaking?

[serv92]

is it possible that my turbo bearing is leaking anti-freeze and/or oil then blowing it out the exhaust.

When I feel the bearing from the front of the turbo(air-intake) there is about 2mm to 3mm of play but the bearing still spins freely with no resistance.
Also I don't hear any noises from this/no clicking knocking. good sign/bad sign?

Is this a problem.

If it is how do I fix it?

I thought I could just replace the bearing, but I cant find one online.

If this is a problem do I need to buy a whole new turbo?

[pandrade]

dont quote me on this but from what i know every turbo is suppose to have a certin amound of end play and verticle play, all whithin manuafters specs. i have no idia what thoes specs might be, they might be on one of the manuals posted on the faq's.

my turbo is in good shape and i get the randome cloud of blue smoke, but iv also seen brand new twin turbo audi r8 have the same blue smoke cloud. like anything in a car i imagine could break maby the chambers that keep the water and oil seperate might have cracked.

a fix i would say is have a well know and certifyed shop rebuild your turbo and make shure they have a good balancer( dont want anything that spins 100,000 rpm to be off lol)

[cre]

[QUOTE=serv92;102470]is it possible that my turbo bearing is leaking anti-freeze and/or oil then blowing it out the exhaust.

Put simply.... NO. The coolant runs in an isolated cavity with a fairly heavy wall to prevent corrosion from opening it up into the rest of the housing. It is VERY unlikely and VERY, VERY rare with the CT-26. More likely than not you've got a blown head gasket.

Originally Posted by pandrade

dont quote me on this but from what i know every turbo is suppose to have a certin amound of end play and verticle play, all whithin manuafters specs.

A new turbo will have no movement, axial or radial, which you could perceive without fine measuring instruments. The TSRM details how to check (and with what tools) to make sure that that movement is within the serviceability threshold.

[pandrade]

i would hope a new turbo has no play, all i remember my old turbo was whithin the tolerances but i messured so long ago cant remember what they where off the top of my head

[Green7mgte]

chances are if you can notice a shift you probably need to rebuild.

0.13mm axial
0.18mm radial

3.0mm... big difference.

http://www.cygnusx1.net/Supra/Librar...aspx?S=TC&P=14

don't get disheartened, its a 20 year old turbo charger.. mine does the same thing m8. It's just time for a new one is all. =) cheers! Look at it not as a money sink, but a chance to upgrade.