GaryM Posted November 20, 2012 Report Posted November 20, 2012 So for some 18 months or more I have been running around with an occasional squeal comming from the drivers side of the engine bay or so I thought. To me it sounded like fanbelt squeal. It has gradually got worse and so a while back I decided to investigate. I replaced the Aux drive belt, no change, then changed the tensioner and direction pully. Still there. So it got left for a while untill the noise got unbearable. I took it to our local garage who changed the cam belt and tensioner on the top half of the engine where upon they diagnosed the turbo. I have been meaning to clean out the inlet manifold and needed to address a broken stud on the exhaust manifold and to get to these the turbo needs to be out of the way. Not sure if I was up to it but took the plunge this weekend and stripped it all down. Glad I did as I found the turbo was ready to blow. It had been blowing oil and there was nearly a mm of play on the shaft. I have been really lucky considering how many miles I have driven over the last 18 months. Just in the process of puting it all back today so will post again hopefully with some picks. Quote
GaryM Posted November 20, 2012 Author Report Posted November 20, 2012 Forgot to add the sound track. Ear plugs at the ready... Turbo Squeal.mp3 Quote
GaryM Posted November 20, 2012 Author Report Posted November 20, 2012 Yep lets play a tune! Inlet manifold cleaned, Broken stud to exhaust manifold drilled out and helicoiled, New turbo in, Fluids replaced, Bearings pre lubricated. Now need to prime fuel system and we should be done. Quote
GaryM Posted November 21, 2012 Author Report Posted November 21, 2012 So todays update, Got rather soggy in the rain having a hell of a time trying to get the car to prime. Part of the advice which comes with the turbo is to allow the engine to crank without it starting to ensure the oil gets pumped around the system and the new turbo as well as confirming full pressure. All make sense and after spending £380+VAT on a rebuilt turbo I did not want to risk any damage. I achived this by leaving the fuel pipe off the filter as I had changed this at the same time. This meant that when I did want the thing to start it was not having it. I could not get it to prime in the end I had to get an inline hand pump to do it and that took a surprisingly long time to draw the fuel back up. Anyway it now starts and have done a short test drive, no whistle :-). Will take it for a longer run tomorrw. Quote
GaryM Posted November 24, 2012 Author Report Posted November 24, 2012 So since the repairs where completed the MPG has gone up from 42 to 46 without any change in driving style. And the cause of my 18months + of music... http://www.morban.co.uk/MiscImages/turbo.JPG There was nearly a mm of play on the end shaft of the turbo. The squealing was from bearing pick up. I'm just amazed how many miles I traveled on it. Quote
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