tuko Posted May 20, 2016 Share Posted May 20, 2016 The 300Tdi turbo on my hybrid has begun to making unhappy noises when I'm going through the gears. This is not all the time but all the same it has begun to. When I'm building up the rev's to close to 3000rpm the turbo whine gets louder than normal, then when I I shift gears and when the turbo winds down there is a pronounced whistle nearly like a dump valve sounds with a note of scratching at the end. So the assumption is that the turbo has seen better days, the guy that I bought it from said it has only 180000km on it but with it's rather short life in the hybrid I'm willing to say that most likely has 380000km on it. Searching on the interweb I see that a person can buy a rebuild kit that replaces all the internals : http://www.ebay.co.uk/itm/281968527907?_trksid=p2060353.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT Has anyone here tried one of these kits? Is it worth the time to rebuild my turbo myself? OR is my prognoses with the turbo wrong? Todd. Quote Link to comment Share on other sites More sharing options...
ejparrott Posted May 20, 2016 Share Posted May 20, 2016 We did discuss his a little while ago. Those cartridges are fully built up and balanced, just needing the housings. Can't get much wrong with that Quote Link to comment Share on other sites More sharing options...
landroversforever Posted May 20, 2016 Share Posted May 20, 2016 Its not a leaking or split boost pipe is it? I had sounds like you describe on my old 200 and it turned out to be the boost hose had partially come off. Quote Link to comment Share on other sites More sharing options...
tuko Posted May 20, 2016 Author Share Posted May 20, 2016 After work I'll check the hoses before investing any money on something that I might not need. Thanks Quote Link to comment Share on other sites More sharing options...
steve b Posted May 20, 2016 Share Posted May 20, 2016 Have a look in the intake snail for evidence of the vanes hitting the casing too . There should be a small amount of play in the bearings which is taken up by oil pressure when running , but it does sound like you have a split/loose hose or a hole in the I/C . cheers Steveb Quote Link to comment Share on other sites More sharing options...
tuko Posted May 21, 2016 Author Share Posted May 21, 2016 Culprit was found after the hose was removed. Thank you guys for the help. Todd. Quote Link to comment Share on other sites More sharing options...
Mo Murphy Posted May 21, 2016 Share Posted May 21, 2016 That does give credence to the advice that says check the cheapest thing first ? Glad you found the culprit Todd ? Mo Quote Link to comment Share on other sites More sharing options...
landroversforever Posted May 21, 2016 Share Posted May 21, 2016 Glad to see its a cheap fix Todd Quote Link to comment Share on other sites More sharing options...
tuko Posted June 8, 2016 Author Share Posted June 8, 2016 So I thought that it was solved. To be honest a few short trips and all seemed well. A run into the big city today and the turbo began making that famous whistling sound when I lift off the go pedal. There is pressure to the injector pump so that side of things are working and I blew out the air filter for good measure but still the whistle. All the clamps and hoses are now in near new condition. Would a leak maybe at the manifold gasket or maybe at the blanking EGR plate cause this whistle? ........... Quote Link to comment Share on other sites More sharing options...
landroversforever Posted June 8, 2016 Share Posted June 8, 2016 I think anywhere there is air escaping it could cause a whistle Quote Link to comment Share on other sites More sharing options...
Aragorn Posted June 8, 2016 Share Posted June 8, 2016 its surely unlikely to be a gasket if it only happens when you lift OFF the throttle... You can pressure test the intake system using a compressor and a bung with a schrader valve in it. Quote Link to comment Share on other sites More sharing options...
Snagger Posted June 8, 2016 Share Posted June 8, 2016 I would guess the only reason it could whistle on throttle reduction is turbo lag causing higher boost in the induction system as the pistons and valves slow down, allowing less of the compressed air in, in exactly the opposite way of turbo lag on acceleration. That would suggest an air leak between the compressor casing and the head, though where is anyone's guess. I would be suspicious of the o-ring between the turbo's compressor housing and core sections, which will be exposed if you remove the compressor housing. Other likely candidates are the manifold gasket and a holed intercooler. Quote Link to comment Share on other sites More sharing options...
tuko Posted June 11, 2016 Author Share Posted June 11, 2016 Today I removed and inspected every hose to the turbo system and everything is as it should be. The EGR blanking plate has no leaks nor does the manifolds. Checking movement in the turbo, there is little movement in/out but when moving the center shaft up and down (6- 12 position) there is several mm movement and it feels rough. I'm of the thought that the turbo is on it's final leg therefore I ordered a replacement cartridge today. Quote Link to comment Share on other sites More sharing options...
hangover Posted June 12, 2016 Share Posted June 12, 2016 Has anyone here bought 1 of these chinese cartridges, interesting to hear what the quality is like since the chinese generally use ****ty materials in metal items. Quote Link to comment Share on other sites More sharing options...
tuko Posted June 15, 2016 Author Share Posted June 15, 2016 I bought one of those cartridges and it looks to be of good quality. The supplier has a good reputation and their turbo's do to, time will tell. I removed the turbo today and here is how it looks: The fin's are shot on the exhaust side and there is little damage on the fin's to the intake side. Removing the 4 bolts that hold the half moon clamps to the turbo, well as luck would have it 3 sheared off! Tomorrow I'll try to remove the threaded portion of the bolts and reassembly. Quote Link to comment Share on other sites More sharing options...
tuko Posted June 15, 2016 Author Share Posted June 15, 2016 I should add, the cartridge was posted from Shanghai on Sunday and I had it here in Sweden yesterday afternoon. Quote Link to comment Share on other sites More sharing options...
Lewis Posted June 15, 2016 Share Posted June 15, 2016 Is it a kinugawa turbo? I used a couple of their cartridges over the years and they seem fine. I also put one of their 360degree bearing rebuild kits into a T28, which even though everyone says you can't rebuild turbo spindles without rebalancing them did another 15000miles before I sold it Quote Link to comment Share on other sites More sharing options...
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