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| BlownNc |
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Age: 41 Posts: 451 Joined: 5th Nov 2004 Ride: 5lt Turbo NC, TE V6 Gemini Location: Castlemaine |
Ok.... T70 on a EB 5LT.. when i first bolt the turbo up, prime the turbo and then start the engine, turbo spins very freely. But after a couple of minutes, turbo slows down to a complete stop and only spins once throttle is applied. Cooler piping isnt connected yet, wastegate is closed... I took the oil line off to make sure i had oil and when i fired it up it shot a powerful stream of oil across the shed... im thinking too much oil is flowing through the turbo? How do i slow it down / restrict it?
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| twr7cx |
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Smaller diameter oil line?
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| BlownNc |
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Age: 41 Posts: 451 Joined: 5th Nov 2004 Ride: 5lt Turbo NC, TE V6 Gemini Location: Castlemaine |
hell no! it cost me a small fortune to get the line i have made up! I heard you could get a small piece of metal, drill a certain size hole in it and fit it in between the line and turbo to restrict? But im not sure of what size hole?
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| hans hartman |
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{USERNAME} wrote: Ok.... T70 on a EB 5LT.. when i first bolt the turbo up, prime the turbo and then start the engine, turbo spins very freely. But after a couple of minutes, turbo slows down to a complete stop and only spins once throttle is applied. Cooler piping isnt connected yet, wastegate is closed... I took the oil line off to make sure i had oil and when i fired it up it shot a powerful stream of oil across the shed... im thinking too much oil is flowing through the turbo? How do i slow it down / restrict it? adjustable valve or a in line restrictor for volume,pressure relief valve for high pressure.
_________________ R.I.P HANS HARTMAN |
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| EBXR8380 |
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1.5 mm restrictor ..
Why though???
_________________ As in ZOOM 126 edition |
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| ebs_4l |
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to my knowledge, if you have too much oil pressure into a turbo like that, they just leak oil past the seals, and it comes out the exhaust pipe, but i cant imagine it would stop it spinning.. you need to measure the volume of oil per minute coming out the hose, it should be about 1.8-2.4l/min from memory
_________________ EB 4L, 8.4:1, R154, GT4202r, 4in exhaust, Greenslade Engineering exhaust manifold, plenum chamber, 90mm throttle, Garrett W2A cooler, Surecam custom, autronic SM4, Bosch 120lb, Crane HI-6, LX-92, LM-1, Turbosmart Reg, 2x bosch 044, turbosmart 48 gate. 470kw+ @ 18PSI |
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| Malakai |
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I would check for caking of the oil on the turbo shaft. Although if the turbo is water cooled then oil caking is unlikely to hapen.
Might have to take it to a professional in the end. |
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| BlownNc |
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Age: 41 Posts: 451 Joined: 5th Nov 2004 Ride: 5lt Turbo NC, TE V6 Gemini Location: Castlemaine |
Turbo is oil cooled only...i just find it weird that when the first few times after i put the engine back in when the turbo was brand new, it span up hard on idle but now it barely spins?
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| hans hartman |
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{USERNAME} wrote: Turbo is oil cooled only...i just find it weird that when the first few times after i put the engine back in when the turbo was brand new, it span up hard on idle but now it barely spins? you may as well strip it,are the bearings ball or roller?may be a bearing failure or oil line problem,check the lot.
_________________ R.I.P HANS HARTMAN |
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| Slick |
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Wouldn't want to restrict oil to much. he did mentioned cooler pipe wasn't connected... siezed?!?!?
_________________ Mind f**k!!! it works on feeble minded ignorant sheeples... there's plenty of em on this site... some are very intelligent but by god they are so thick!!! {USERNAME} wrote: You can buy them seppertly
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| EBXR8380 |
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shaft bearing should have as much oil as possible, they have bigger clearances ...
Require heaps of oil for cooling... Check that comp / turbine wheels are not touching housings...
_________________ As in ZOOM 126 edition |
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| CHEF |
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How well/free does it spin if you poke your finger in and spin it?
What sort of T70 we looking at here? Ebay cheapy or big brand name? Pretty common for the cheapies to die fast |
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| BlownNc |
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Age: 41 Posts: 451 Joined: 5th Nov 2004 Ride: 5lt Turbo NC, TE V6 Gemini Location: Castlemaine |
Its a masterpower (brazilian)...i went with them coz a lot of the mustang guys in the states get great results with them. Turbine spins easily by hand...
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| CHEF |
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They are pretty good for the $$
Seems odd then, maybe somethings blocking airflow. My T4 on the old ED would spin on start up then slowing come to a stop at idle, you could give it little blips on the throttle and it wouldnt move too much. MAybe the bearings have just tightened up a bit now that its got some heat into it |
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| Sturmovik |
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Your oil drain could be the problem too, make sure its not blocked and of large enough diameter
_________________ 1993 ED XR6 5speed Polynesian Green. Project car. |
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