Disconnecting turbo?

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Dr Fingers
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Disconnecting turbo?

Post by Dr Fingers » Sun Feb 05, 2012 10:26 am

Typical: Ruby has a nice new set of shoes (Avon Ice Tourers), all ready for winter, and 10 days ago the turbo blew (according to the supplying dealer, who has checked it over) with spectacular clouds of blue smoke emanating from poor Ruby's derriere.

While (still) waiting for a replacement to arrive ('despatched on Wednesday, honest'), the white stuff is now upon us, and my trusty BM is, as usual, totally useless.

Said dealer says it is easy to disconnect turbo and run without it.
Can anyone tell me, a complete dolt with mechanics, how to do this, in words of one syllable, a picture would be even better. :D

So far I have: "lift driver's seat. hose to your right, awkward to get at, with a jubilee clip that would take a 10mm wrench thingy, disconnect". the only hose that I can see to the right (top of engine, middle, bottom?) that looks like it isn't a coolant hose :!: has a 'sprung' jubilee clip, (just squeeze with finger and thumb) is about 1/2" and is 'U' shaped? Is this it?

Assuming I don't b****r the old girl up totally, what's the deal running with this pipe removed? Should I blank the holes off, will oil spray everywhere, as apparently the turbo is spraying oil into the engine?

Or perhaps, being a complete eejit with such things, I should leave well alone.. :?

Many thanks for any words of wisdom.


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Re: Disconnecting turbo?

Post by Driver+Passengers » Sun Feb 05, 2012 10:36 am

I'd sit it out - wait for the new turbo.
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Re: Disconnecting turbo?

Post by Simon Jones » Sun Feb 05, 2012 10:39 am

I wouldnt touch it. You could bypass the turbo so the air flows directly into the inlet manifold, but the turbo will still be spinning so if you have a oil leak in it, it will still be spraying out. As the turbo is plumbed into the coolant and oil systems it would not be practical to fit a bypass for these systems so it could be removed completely.
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Re: Disconnecting turbo?

Post by Dr Fingers » Sun Feb 05, 2012 11:35 am

Wise words, methinks..

I'll let the dealer sort it :D

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Re: Disconnecting turbo?

Post by Darkstar » Sun Feb 05, 2012 12:02 pm

:?: my turbo's under the passenger seat, so i would leave it for the garage if i was you :D
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Re: Disconnecting turbo?

Post by Dr Fingers » Sun Feb 05, 2012 1:02 pm

Someone else said that, must have misheard him on the phone. Could have sworn he said driver's side..?

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Re: Disconnecting turbo?

Post by maxheadroom » Sun Feb 05, 2012 1:14 pm

I did this years ago with a Saab 900 I had until I could get / afford a new turbo :D before internet :D

All you have to do is blank off the oil feed and leave it in-situ but I would not do it nowadays to my Bongo :D
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Re: Disconnecting turbo?

Post by dave_aber » Sun Feb 05, 2012 1:14 pm

The inlet manifold's on the driver's side. What he was suggesting is to disconnect the air pipe from the front of the manifold on that side, letting the engine draw air straight into the manifold.

Would possibly work OK, as the pump will sense the lower pressure OK and not overfuel, but as pointed out above, the turbo is pumping oil into the combustion, so with it disconnected it will be spraying it over the engine instead. More important than where the oil goes, is where it's come from - i.e. the sump. It's kind of needed there, so I wouldn't advise disconnecting.
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Re: Disconnecting turbo?

Post by dreamwarrioruk » Sun Feb 05, 2012 3:22 pm

when our turbo blew up, i tried the same. tbh there wasnt enough power to drive up a gentle slope without the turbo in place so i would just wait till you get the replacement
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Re: Disconnecting turbo?

Post by Dr Fingers » Sun Feb 05, 2012 3:33 pm

Thanks! That just about nails it!


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Re: Disconnecting turbo?

Post by 321Away » Mon Feb 06, 2012 10:22 am

Undoing the inlet pipe (which removes ALL filtration means you could suck in anything into your engine!) and as previously said, running the vehicle as low compression (non turbo) will mean you have almost no power at all. Interesting as a turbo failure usually results in white smoke as oil is drawn into the hot exhaust system, blue smoke usually means its oil thats being burnt?? Are you sure your air intake system is clear? as a blockage alters the fuel mix and results in clouds of dark smoke

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Re: Disconnecting turbo?

Post by dreamwarrioruk » Mon Feb 06, 2012 11:43 am

after reading it again i agree you say blue smoke. ours failed like the old f1 cars, big plumes of white smoke as the water jacket seal failed sucking all the water out of the engine/header tank. Very lucky no other damage cause. Blue smoke can happen as there is oil pipes that run to the turbo which you dont want to start combusting or you wont be able to stop engine until something goes bang (This may or may not be correct but im sure there are more technically minded than me that could explain)
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