Ok, this morning when i was driving to the garage to have the oil/filter change done, the turbo or something in the engine sounded like a police siren noise. when it was warm the noise disappeared. i didnt intend to use the turbo when it was cold but needed to get away quickly. however, whats foxes me is there is no smoke whatsoever coming out of the exhaust.

is this a sign of imminent failure or just cause it was cold.

my car is coming up to 70k on the original non recond turbo

 

noise u describe is a badly balanced or oil starved turbo.

 

hows that problem solved?

 

has it only done it once? is there oil in the engine? is the oilfeed pipe to the turbo ok?

 

yes, only once

there is oil in the engine, i've been running it on 0-40w fully synthetic over winter and its getting changed today to 15-50w. the oilfeed pipe? not checked. so if its spilt there my problem i guess?

 

well, yes. if it's only done it once - then it is an oil problem rather than a balance problem, as it would do it every time she came on boost.

 

ok, so suggested thing to do?. does the oil feeder pipe have to be split for it not to be getting oil to the turbo?. could it be blocked?

 

I would say tis the turbo, same thing happened on me mates 3dr ended up with new turbo.

 

how long do they last like that though? or is that a piece of string question? just suprised at no smoke, white/blue or otherwise!

 

w will only get smoke if the rear oil seal has failed. if u arent getting any oil to the turbo - then yes, u arent going to burn any! The feedpipe could be blocked - unscrew it from the turbo, run the engine and make sure it comes out under pressure - have a rag to hand!

 

aaarrggh too technical for me

thanks for your help though.

 

ive ben told 0-40 in an rs turbo is a big nono anyway (see burtons mag)

 

its ok in deepest winter

 

i only used it over winter - Nov-Feb, luckily its been mega cold!.

using 15-50 now

 

 

....and the sound has gone now its coated with 15-50w