290 AND READY

Hi folks I have a map on thirsday but im not convinced my up pipe and downpipe are on tight.

I just dont want to go for a map and they be loose.

Could you please advise the easiest way to tell if the up pipe/downpipe from turbo have leak

If so would I lose a lot of bhp at map?
LEGENDS!
cheers folks!!!!!!!

scooby1doo1

iTrader: (7)

If you can see lots of carbon around the joints, then you have a leak. Had a remap and was leaking from turbo to downpipe cost me almost 30bhp. Check or take to be check befor the map.

TonyBurns

iTrader: (3)

You should be able to hear it blowing with the bonnet up.

Tony

scooby1doo1

iTrader: (7)

Depends how bad of a leak, i could not hear mine.

290 AND READY

cheers lads I shall have a listen......I have installed decat up pipe and down pipe- does sound a bit blowy tbh. Wasnt sure if this was down to decat though.
Just dont want to go to map and waste money if you know what i mean....map is on thursday and im working till then.
Im gonna have to formulate a plan me thinks!

Butty

iTrader: (2)

There's no easy way to know, unless its a very bad blow.
Look for soot marks(tricky) or have a sniff around the turbo area - a rich mix from a cold start is quite obvious to smell.
Mapping may show an unstable idle which can be caused by an up-pipe leak.

nick

dunx

iTrader: (3)

Bung the tail-pipe, this will put a greater pressure on the joints.... Obviously, not a perfect seal or it will "choke".

HTH

dunx

290 AND READY

bung the tail pipe- as in put my bung in or completely block the tail pipe?
If it chokes then ok - if still running a leak?
Would it do any any harm to engine testing this method?
Cant see any soot marks lads but can smell exhaust from engine bay
Surely if there was a leak on a cold morning start if I open the bonnet ill see fumes rise from engine bay if leak?

Butty

iTrader: (2)

Unless you've got a smoking engine, you won't see anything. The leaking gas flow will be very small but if it smells "rich" around the turbo area on a cold start then I'd look for a leak.

weeebell

iTrader: (1)

When I fitted my downpipe, it started to blow after a little while, if you look close, you can see the soot marks of the edge of the turbo/downpipe flange





and on the right hand side here



Basically, your lookng for black soot around the area where they join.

scooby1doo1

iTrader: (7)

Like i said look for carbon. Mine was leaking in the same place as above

Chris.B

iTrader: (4)

Just re-new both gaskets anyway; peace of mind and all that.

290 AND READY

cheers lads- thats i renewed the up pipe gasket but not down pipe gasket ................Ill take the i/c off at some point and look for black soot - cheers!!!

ian.b

Id use a sniffer that will tell you :-)

290 AND READY

a sniffer? lol