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[rustym95]

was at lights in town when herd this sound like some one sucking there lips, had a look when got home and seems to be coming from the back of the engine, had a good look but cannot find were its coming from, all air pipes are ok any one know?

[dbug]

Its an air leak - vac pipe off or holed, inlet manifold ?

[rustym95]

i spray the hole area with hair spray no change in engine, no loss of vac dose 3 sounds then stops then dose it again, but not in sinc, its no affecting anthing just sound funny never heard it before. strange.

[RobG]

i spray the hole area with hair spray no change in engine, no loss of vac dose 3 sounds then stops then dose it again, but not in sinc, its no affecting anthing just sound funny never heard it before. strange.

On a hot engine. You must be mad

[Entwood]

i spray the hole area with hair spray no change in engine, no loss of vac dose 3 sounds then stops then dose it again, but not in sinc, its no affecting anthing just sound funny never heard it before. strange.

I would STRONGLY advise against this .. the propellant in hairspray is often butane ... a highly flamable gas.

A light spray with carb cleaner is a far safer method, and once you have found the source of the air leak, a wipe doan with paper towels and you also have a nice clean engine .....   not a horrible sticky residue !!!

[dbug]

i spray the hole area with hair spray no change in engine, no loss of vac dose 3 sounds then stops then dose it again, but not in sinc, its no affecting anthing just sound funny never heard it before. strange.

Dangerous using hair spray - still at least it'll keep your engine in place 
As above use light spray of carb cleaner

[LFF64]

The sound of the fire engines sirens would drown out the noise though 
 Could it not be the fan under the front wing (forgotten the name)
 May be worth checking gearbox level if auto just in case too
 Oh just thought have you checked the big black vac pipe  I have had two of these wear through they rub against the air con pipe work ,unless you have the little spacer to hold the pipes apart ,which  I have now 

[rustym95]

i spray the hole area with hair spray no change in engine, no loss of vac dose 3 sounds then stops then dose it again, but not in sinc, its no affecting anthing just sound funny never heard it before. strange.

I would STRONGLY advise against this .. the propellant in hairspray is often butane ... a highly flamable gas.

A light spray with carb cleaner is a far safer method, and once you have found the source of the air leak, a wipe doan with paper towels and you also have a nice clean engine .....   not a horrible sticky residue !!!

it has not had butane in it for years,( not sin's that model was set alight, its the quick dry thats flamible witch that need a naked flame) any way found out what it is,tank vent pipe has crack in it, just been under, so going to have to replace the pipe. any way thanks.