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Oil spray from turbo - 4JX1


 
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Browndoff
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Joined: 22 Mar 2013
Posts: 513
Location: Dublin 13, Ireland

PostPosted: Sat May 12, 2018 20:24    Post subject: Oil spray from turbo - 4JX1 Reply with quote

Hi Guys, it's probably a standard problem - but apart from oil being sprayed around the engine-bay, I've also got emulsion in my coolant-overflow bottle. I think it's a fault in the turbocharger - can a faulty oil-seal get oil into the water-jacket of the turbocharger?
There's no smoke from the exhaust and power-output seems fine. There's no strange noise from the Turbo [that I'd recognise, anyway].
I'm nervous of tackling this job, partly because turbochargers are so expensive [when available!] but also because it's so hard to remove nuts from the exhaust-system without breaking the rusty bolts!
I'd appreciate any advice on tackling the job - where to start, what I need to prepare, etc.
Thanks
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2002 LWB Trooper 3.0L
I've done some major repairs, including replacing half-shaft, replacing fuel-injectors etc.
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PostPosted: Sat May 12, 2018 20:24    Post subject: Google Ads keep this community free to join!


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eithan h
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Joined: 11 Dec 2005
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Location: oxfordish

PostPosted: Sun May 13, 2018 14:27    Post subject: Reply with quote

not seen it myself, you sure it's not diesel?
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Browndoff
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Joined: 22 Mar 2013
Posts: 513
Location: Dublin 13, Ireland

PostPosted: Mon May 14, 2018 22:18    Post subject: Oil spray from turbo - 4JX1 AND in water Reply with quote

I'm not at ALL sure that it's not diesel in the water! I may have two separate problems!

I tried to remove the Turbo today and was pleased that the fixings came off smoothly - but HOW is one supposed to access the 3 exhaust-manifold nuts? They seem to be buried behind the turbo-centre-body. The waste-gate-actuator is holding the centre to the turbine-casing and can't be removed 'cos its clip is at bottom [and meant to be separated only after the whole thing is removed]?
My turbocharger is well-represented by the manual picture on page 2145 of the 62Mb PDF [just to help you visualise my problem].
There seems to be no play in the compressor-shaft-end, so maybe the turbo needs only new oil-seals - but that's no help if it cant be removed!

If it IS fuel in the water, does that HAVE to mean the O-rings are gone in the Injector-Sleeves? Replacing those would be a huge job - would it not?
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2002 LWB Trooper 3.0L
I've done some major repairs, including replacing half-shaft, replacing fuel-injectors etc.
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Browndoff
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Joined: 22 Mar 2013
Posts: 513
Location: Dublin 13, Ireland

PostPosted: Wed May 23, 2018 20:32    Post subject: odd solution Reply with quote

I thought I should come back 'cos, like many, I hate to see a post started and then not get to know what actually ended the story.

I got half-way through the removal of the turbo - and stopped! Why continue, I thought? There's no smoke from exhaust - there's very little oil in the intercooler - so the oil sprayed around CAN'T be from a ruined bearing in the turbo. It must be a leak form somewhere else - maybe a loose oil-pipe....?

After assembly, I started it [easily] and left it running smoothly while I had a cuppa. It had stalled when I returned and would NOT restart - not so much as a stutter!

There was still the 'mayonaise' in the coolant bottle - so I thought I'd start with checking for water in the fuel system and, specifically, with the fuel filter. I stripped it out and found it 25% full of filthy water!! The water was brownish and full of brown solid bits - yeuch! Although I had a fresh fuel-filter handy, I didn't feel ready to use it until I had found the real source of trouble. I cleaned it out and and re-filled it with fuel, bled the air and pumped it 'solid'.

NO START!! Re-bled filter and re-pumped several times. Opened return-line and checked that there WAS fuel coming out. STILL no start!

After a lot of frustration and messing with possible electrical faults, I fitted a clear-plastic tube to the return-line to see if there was still air in the system.

Just to mock me, the darn thing started immediately after it filled the clear-plastic tube! It ran smoothly although there was a steady stream of bubbles passing along the clear tube - finally the tube cleared of bubbles and the Trooper continued to run - as though nothing had happened at all!

There's still work to do - I have to investigate the coolant problem - but the old Beastie is running again!
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2002 LWB Trooper 3.0L
I've done some major repairs, including replacing half-shaft, replacing fuel-injectors etc.
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eithan h
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Joined: 11 Dec 2005
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Location: oxfordish

PostPosted: Wed May 23, 2018 21:21    Post subject: Reply with quote

diesel in the rad?
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MathewCox
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Joined: 20 Jul 2018
Posts: 1
Location: Seattle

PostPosted: Fri Jul 20, 2018 15:23    Post subject: Reply with quote

I had the same problem and it was because of the diesel...
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