pigster Posted January 26, 2007 Share Posted January 26, 2007 done a search and didn't find much, so I shall ask. The disco turbo with out manifolds etc etc ,, with it fit a def 200tdi manifold and bolt straight on (no mods) so will it work.. is it the same turbo? or failing that - who rebuilds turbos as my one is giving up the ghost - as in really really hi pitch scream when the turbo gets moving proper. the fans move side to side a little too much me thinks and also back and forth... so its knackered. Would a knackered turbo also account for lots of blue smoke out the exhaust ? and poor running when cold? I think that'll do for now ) Quote Link to comment Share on other sites More sharing options...
selectcase Posted January 26, 2007 Share Posted January 26, 2007 Yes i think it is the same, if it screams you may just have a manifold leak somewhere but with the smoke some seals may be gone as well however i have heard that its easy to blame the turbo when its other things. dont know if thats a lot of help but it shouldnt take too long to swap them over and check, the boost pressures are the same. Quote Link to comment Share on other sites More sharing options...
pigster Posted January 26, 2007 Author Share Posted January 26, 2007 shouldn't take long to swap... yeah righto - -this is me we are talking about.. this is gona take a life time to sort- - spare bolts and nuts and stuff... I am pretty sure its the turbo as I have litterally just finished putting the head back on, and thats all brand new, and looks lovely.. plus the fan bit/ is moving somewhat a great deal. when I am pretty sure it shouldn't move that much. I am also hoping it would explain the oil trail as well... as the turbo does use oil and it also does play with the exhaust so I am wishing that it is... if you know what I mean.. This weekends play... pretty sure the manifold seal is good,, as its new.. Yes i think it is the same, if it screams you may just have a manifold leak somewhere but with the smoke some seals may be gone as well however i have heard that its easy to blame the turbo when its other things.dont know if thats a lot of help but it shouldnt take too long to swap them over and check, the boost pressures are the same. Quote Link to comment Share on other sites More sharing options...
Gremlin Posted January 26, 2007 Share Posted January 26, 2007 I might be wrong here, but isnt a disco turbo held by 3 bolts not 4? Grem Quote Link to comment Share on other sites More sharing options...
simonr Posted January 26, 2007 Share Posted January 26, 2007 The way to tell (generally) if your turbo is knackered is, when you switch off the ignition - does it carry on running for a bit? If so, then it's running on the oil sucked through the bearings. The turbine should move side to side a mm or so. Once it's up to speed, the bearings run on oil/air with very little metal to metal contact. As has been suggested, screaming is more usually associated with a leak. Smoke could be due oil being burned, or it could be a problem with the boost diaphragm or fueling generally. It's worth taking the bottom pipe off your intercooler. If oil literally pours out - then you probably have a problem. If the inside of the tubes are just wet with oil (condensed oil vapour) that's normal. Si Quote Link to comment Share on other sites More sharing options...
pigster Posted January 26, 2007 Author Share Posted January 26, 2007 right I shall give that a check.. how quickly should the turbo keep spinning for once the engine is off - - as in the fan at the front.. as when I did this last night it just kept going for a good 30 secs I reckon before it stopped. I not sure where the air would be coming from? but I shall do up all the bolts again. or tighten them... The way to tell (generally) if your turbo is knackered is, when you switch off the ignition - does it carry on running for a bit? If so, then it's running on the oil sucked through the bearings.The turbine should move side to side a mm or so. Once it's up to speed, the bearings run on oil/air with very little metal to metal contact. As has been suggested, screaming is more usually associated with a leak. Smoke could be due oil being burned, or it could be a problem with the boost diaphragm or fueling generally. It's worth taking the bottom pipe off your intercooler. If oil literally pours out - then you probably have a problem. If the inside of the tubes are just wet with oil (condensed oil vapour) that's normal. Si Quote Link to comment Share on other sites More sharing options...
Lewis Posted January 26, 2007 Share Posted January 26, 2007 how quickly should the turbo keep spinning for once the engine is off - - as in the fan at the front.. as when I did this last night it just kept going for a good 30 secs I reckon before it stopped. I think Simon means that your engine will run-on for a second or two burning its own oil, rather than the length of time it takes for the turbo to spin down Quote Link to comment Share on other sites More sharing options...
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