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Author Method to find blowing exhaust..
Rob B
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Registered: 8th Jan 04
Location: Area Motorsport Drives: Race EP3
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13th Oct 11 at 13:35   View User's Profile U2U Member Reply With Quote
Hi guys,

Just fitted a new manifold and it sounds like it's blowing from somewhere although i've checked all joints and can't feel anything.

Could it be the manifold is made from a thinner metal creating the noise? The gasket isn't quite lined up correctly creating a slight lip so when gases pass it's whistling?

Any other suggestions? or ways to find it?
Jake
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Registered: 24th Jan 05
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13th Oct 11 at 13:38   View User's Profile U2U Member Reply With Quote
plug the tip with your hand or foot and get someone to listen out for it
willay
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Organiser: South East, National Events
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Registered: 10th Nov 02
Location: Roydon, Essex
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13th Oct 11 at 13:41   View Garage View User's Profile U2U Member Reply With Quote
spray something over it
johnhara1
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Registered: 19th Oct 06
Location: Newcastle upon Tyne
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13th Oct 11 at 13:41   View User's Profile U2U Member Reply With Quote
Give it a good blast first and see if it stops sounding shit.

Otherwise, as above.
Rob B
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Registered: 8th Jan 04
Location: Area Motorsport Drives: Race EP3
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13th Oct 11 at 13:50   View User's Profile U2U Member Reply With Quote
Spray what over it Willay? Jizz?
sxibeast
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Registered: 6th Aug 03
Location: Milton Keynes
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13th Oct 11 at 13:53   View User's Profile U2U Member Reply With Quote
Water or soapy water. Its what i use at work to find leaks
DannyB
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Registered: 6th Feb 08
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13th Oct 11 at 13:57   View Garage View User's Profile U2U Member Reply With Quote
Spray water over the joints and watch for bubbles
sc0ott
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Registered: 16th Feb 09
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13th Oct 11 at 14:12   View User's Profile U2U Member Reply With Quote
Are they not the same as brand new exhausts? They sound shit to start with but after you drive it it sounds better
LeeM
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Registered: 26th Sep 05
Location: Liverpool
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13th Oct 11 at 14:31   View User's Profile U2U Member Reply With Quote
cover the end,any blows will become more obvious. if there arent any blows it will start to bog down
deanmcreynolds26
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Registered: 15th Sep 03
Location: E46 //M3
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13th Oct 11 at 22:08   View User's Profile U2U Member Reply With Quote
Use a match
Rob R
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Registered: 31st May 03
Location: Kent
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13th Oct 11 at 22:47   View User's Profile U2U Member Reply With Quote
What manifold is out of interest?
gavin18787
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Registered: 22nd Feb 05
Location: Basildon, Essex
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14th Oct 11 at 06:57   View Garage View User's Profile U2U Member Reply With Quote
Friends garage has got a smoke machine that pumps smoke into the rear and you then look to see wheere its coming out if anywhere.
Maybe try and see if anywhere local has one if your stuck

Drives supercharged Tec with torque
antnee
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Registered: 30th Dec 07
Location: Cov Drives: Clio 197
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14th Oct 11 at 08:08   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by LeeM
cover the end,any blows will become more obvious. if there arent any blows it will start to bog down


This.
s4k1b
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Registered: 11th Nov 02
Location: West Yorkshire
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14th Oct 11 at 10:49   View User's Profile U2U Member Reply With Quote
turn engine off.

get your mouth around the exhauast end

blow hard

and get someone else to listen out for leaking air

it might be useful to get your girlfriend to do the blowing.
Gary
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Registered: 22nd Nov 06
Location: West Yorkshire
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14th Oct 11 at 10:55   View Garage View User's Profile U2U Member Reply With Quote
quote:
Originally posted by gavin18787
Friends garage has got a smoke machine that pumps smoke into the rear and you then look to see wheere its coming out if anywhere.
Maybe try and see if anywhere local has one if your stuck



Smoke grenade
adiohead
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Registered: 28th Sep 01
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14th Oct 11 at 10:56   View User's Profile U2U Member Reply With Quote
I've got a smoke machine
Fro
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Registered: 20th Jun 06
Location: Rainham, Essex Drives: A3 2.0TDi Sport
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14th Oct 11 at 10:59   View User's Profile U2U Member Reply With Quote
Aside from your lactose intolerant backside
Gary
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Registered: 22nd Nov 06
Location: West Yorkshire
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14th Oct 11 at 10:59   View Garage View User's Profile U2U Member Reply With Quote
quote:
Originally posted by adiohead
I've got a smoke machine



There we go, problem solved. And we can have a little disco after
adiohead
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Registered: 28th Sep 01
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14th Oct 11 at 11:03   View User's Profile U2U Member Reply With Quote
Bought it for gigs but never used it.

Love the smell of dry ice
Gary
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Registered: 22nd Nov 06
Location: West Yorkshire
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14th Oct 11 at 11:05   View Garage View User's Profile U2U Member Reply With Quote
My mate has bubblegum stuff. Smells lovely
adiohead
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Registered: 28th Sep 01
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14th Oct 11 at 11:09   View User's Profile U2U Member Reply With Quote
You smell lovely x
Gary
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Registered: 22nd Nov 06
Location: West Yorkshire
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14th Oct 11 at 11:11   View Garage View User's Profile U2U Member Reply With Quote
Cheers mate x
JordyCarter
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Registered: 14th Mar 10
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14th Oct 11 at 13:13   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by Gary
quote:
Originally posted by gavin18787
Friends garage has got a smoke machine that pumps smoke into the rear and you then look to see wheere its coming out if anywhere.
Maybe try and see if anywhere local has one if your stuck



Smoke grenade

or you can use a steam granade
DaveyLC
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Registered: 8th Oct 08
Location: Berkshire
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14th Oct 11 at 14:59   View User's Profile U2U Member Reply With Quote
Put a few drips of engine oil in each bore and fire her up

 
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