3200 turbo - hissing noise?

[stevenM]

hi folks

after a track day my 3200 now has a nice hissing noise over 2500 (normally you do hear the turbos but only 2500-3000 then the engine noise takes over but now there is a constant and loud hissing).

is this something like a loose / split hose?

haven't had a look yet but i'm thinking this will need to be accessed from underneath the car - anyone have any experience of doing this?

many thanks

steven

[stevenm]

well, had a look at the car and indeed the top hose (from turbo to intercooler pipe) on driver side has been damaged (it sits very close to exhaust and when car rev's the engine kicks over a small amount and the exhaust almost touches the pipe.

it looks like an awkward pipe to gain access to!

[stevenm]

ordered a new pipe £55

[stevenm]

hi nigelo

thanks for your help. not sure on the correct fitment - it looks like I'll have to do a lot of work just to get at the pipe at the weekend. Is this a job to be tackled from the top of the car or from underneath?

some photos of the damage...

http://s98.photobucket.com/albums/l25

[stevenm]

hi wicked1

many thanks for the help - hopefully if the part arrives today i can tackle it this weekend. not looking forward to it :-(

cheers
steven

[stevenm]

well, approx 4 hours later and a lot less skin on my hands i've completed the job.

i'll post a full write up later in case anyone else has to tackle the job - the fact that the hose practically touches the exhaust must mean this happens often?!?

[stevenm]

this is a pain in the ass job - you need hands half the size. try and find an 8 year old mechanic to do this for you.

remove front undertray
disconnect hose to intercooler
remove air box
remove relay box beside airbox (just move to the side)

from underneath the car loosen the two jublee clips holding turbo outlet hose. this is difficult to say the least and technique depends on orientation of the clips! i really long screw driver got one of them and the other was loosen with a spanner (my arm up round the back of the steering arm!)

once loosened pull the metal intercooler hose free and out under the car. then remove the flexible hose. this is also fiddly due to lack of space.

now, place a jublee clip over the turbo outlet and fit the new flexible hose to this from above and tighten (use a tiny bit of fairy liquid to ease hose onto connector but not loads - dont want the turbo blowing bubbles!). now, feed the metal hose up from under the car and you will probably need someone else to fit the flexible hose from above. i tried fitting the flexible to the metal hose and then to the turbo but this proved impossible!

the rest is all the reverse...

BTW - i did all this using the scissor jack - life would be easier using a ramp or lift.

steven

[stevenm]

yeah, i should know better - had a car fall off a scissor jack before - never moved so fast in my life!

the garage was full of junk (read : car parts!) and had no room to get the trolley jack under.