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 Fuel coming from exhaust
Author Message
srr
Level 8 User

Joined: 02 Dec 2004
Posts: 263

Posted: Tue Jun 07, 2005 4:25 pm

Hi guys,

Tonight when i was waiting for the car to warm up, i noticed that it spat fuel drops from the exhaust. One drop every 10 seconds ca.
What can be sources of this ?
I got 3 month old plugs. But the dizzy cap, leads and rotor arm were not available at the time, they need special ordering Rolling Eyes

Is the cap, leads and rotor the source of this? Ie they need re-newing ?
Or can there be something else?

Ps. Its my R19 Ph2 RT 1.8 F3P Wink
Roger Red Hat
Site Subscriber

Joined: 13 Oct 2004
Posts: 4722

Posted: Tue Jun 07, 2005 4:26 pm

sure its fuel?
simonds1
Site Subscriber

Joined: 29 Jan 2005
Posts: 1108

Posted: Tue Jun 07, 2005 4:28 pm

Water surely. It would smell of fuel cuz it's just come out of the exhaust, but I'm sure it'll be just water
Roger Red Hat
Site Subscriber

Joined: 13 Oct 2004
Posts: 4722

Posted: Tue Jun 07, 2005 4:29 pm

if its just when your starting the car from cold

it will be condensation.
schakal
Spammer

Joined: 27 Jul 2004
Posts: 5717

Posted: Tue Jun 07, 2005 4:34 pm

put a little bowl underneath where it leaks and let some of the stuff collect ,that way you can find out what it actually is but as people allready said,its water .
i got a f3p and a F7P both does the same nothing to worry i have been told
srr
Level 8 User

Joined: 02 Dec 2004
Posts: 263

Posted: Tue Jun 07, 2005 4:34 pm

condensation = moisture ?
Hmm, didnt smell the drops, just thought straight away it was fuel since i find it to be wasting a lot of fuel per km Rolling Eyes
Will check it out tomorrow.
But if it is fuel, then what? Wink
simonds1
Site Subscriber

Joined: 29 Jan 2005
Posts: 1108

Posted: Tue Jun 07, 2005 4:36 pm

It won't be, so don't ask that Wink
srr
Level 8 User

Joined: 02 Dec 2004
Posts: 263

Posted: Tue Jun 07, 2005 4:39 pm

Lol Laughing
Will have a look tomorrow
Roger Red Hat
Site Subscriber

Joined: 13 Oct 2004
Posts: 4722

Posted: Tue Jun 07, 2005 4:41 pm

Quote:
condensation = moisture ?


yes

it builds up to it
schakal
Spammer

Joined: 27 Jul 2004
Posts: 5717

Posted: Tue Jun 07, 2005 4:43 pm

there is some water inside fuel as far as i know,thats what comes of the exhaust .i am sure hris h will be able to explain it better

but it cant possibly be fuel , as the your cat would sort it out
srr
Level 8 User

Joined: 02 Dec 2004
Posts: 263

Posted: Tue Jun 07, 2005 4:46 pm

The cat traps fuel that doesnt explode?
schakal
Spammer

Joined: 27 Jul 2004
Posts: 5717

Posted: Tue Jun 07, 2005 4:50 pm

no it burns the unburnt fuel thats why it gets much hotter than the exhaust manifold does
srr
Level 8 User

Joined: 02 Dec 2004
Posts: 263

Posted: Tue Jun 07, 2005 4:53 pm

Yeah, i noticed how hot it was last night. Was under the car tightening a cover that is above the cat due to rattling noise.
Managed to stick my hand to close to the cat and damn it was hot. Nearly burnt myself Embarassed
schakal
Spammer

Joined: 27 Jul 2004
Posts: 5717

Posted: Tue Jun 07, 2005 6:00 pm

carefull now Wink
JB
Mr Quoter-vator

Joined: 16 Feb 2004
Posts: 7405

Posted: Wed Jun 08, 2005 7:27 am

cat doesnt catch unburnt fuel and burnt it! or at least thats not its purpose...unburnt fuel will damage a cat...

water is a by product of combustion.

but its most likely just condensation.
drhex
Level 5 User

Joined: 19 Sep 2004
Posts: 115

Posted: Wed Jun 08, 2005 9:04 am

Isnt one of the by-products of burning hydrocarbons water.
JB
Mr Quoter-vator

Joined: 16 Feb 2004
Posts: 7405

Posted: Thu Jun 09, 2005 1:46 am

thats what i just said mofo! Razz
Gentle Ben
Site Subscriber

Joined: 07 Oct 2004
Posts: 2281

Posted: Thu Jun 09, 2005 10:29 am

Catalysers are lined with a material (catalyst, funny that) that binds all the pollutants in exhaust gases and converts them to less harmful derivatives.

If the fuel contains a high content of lead then the catalyst becomes 'poisoned' and wont work as effectively, if it all. Hence why unleaded fuels should be used on cars equipped with Cats.
R1916S
Site Subscriber

Joined: 23 Jan 2005
Posts: 502

Posted: Thu Jun 09, 2005 12:10 pm

Air is full of water.

That where the rain falls from.

Suck it through the engine blow it out the exhaust.

But if the exhaust is cold it rains inside.

Simplistic answer
JB
Mr Quoter-vator

Joined: 16 Feb 2004
Posts: 7405

Posted: Fri Jun 10, 2005 3:24 am

any more offers for expaining the same thing in different words? anyone? no? dust....anyone? no? dust..
R1916S
Site Subscriber

Joined: 23 Jan 2005
Posts: 502

Posted: Fri Jun 10, 2005 4:43 am

Whats the dust bit.

God he's back again.

http://www.kidzone.ws/water/

Run air up to 300 bar in a diving cylinder fill compressor and see how much water you get.

Run air through your engine, compress it, burn fuel in it. the water is still there.
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