Help - What is it?

Help - What is it?

Author
Discussion

broadcom

Original Poster:

5 posts

264 months

Monday 24th February 2003
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A big black cylindrical object with two hose pipes attached, and located (or rather rattling about) in the compartment below the right hand main headlight. One hose goes to the plenum chamber and the other disappears down the chassis on the other side. I’m curious to know what it is before I start pulling the car to pieces to find out how to reattach it…

boosted ls1

21,198 posts

267 months

Monday 24th February 2003
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Are they hoses or wires, one red and one blue. Don't cut them!

zumbruk

7,848 posts

267 months

Monday 24th February 2003
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Charcoal cannister? Hose to rear of car collects petrol fumes and feeds them into induction...

Guillotine

5,516 posts

271 months

Monday 24th February 2003
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yep...hydrocarbon eater.

GreenV8S

30,487 posts

291 months

Monday 24th February 2003
quotequote all

A big black cylindrical object with two hose pipes attached, and located (or rather rattling about) in the compartment below the right hand main headlight. One hose goes to the plenum chamber and the other disappears down the chassis on the other side. I’m curious to know what it is before I start pulling the car to pieces to find out how to reattach it…



The carbon cannister will be somewhere round there, it'll have a vent tube in from the fuel tank and an outlet to the plenum. There should be a solenoid valve between the cannister and the plenum. The idea of the carbon cannister is that with the car parked, the fuel tank vents through it and the carbon absorbs polluting hydrocarbons that would otherwise escape into the atmosphere. When the engine is running, the solenoid valve opens allowing the engine to suck air back through the cannister, bringing the hydrocarbons with it. You have to wonder whether the pollution saving the carbon cannister gives is worth the cost and pollution that came from making it though!

Ballistic Banana

14,700 posts

274 months

Monday 24th February 2003
quotequote all
Otherwise known as the Carbon Cannister/purge Tank
Filled with charcoal that absorbs the petrol fumes escapimg to the atmosphere as the air vent at the filler cap on the Petrol Tank isnt used.
As quoted from the Bible 'It is occasionally needs replacing to ensure correct emission readings are met,but is generally left alone and forgotten'
Hope u dont mind me quoting that Mr S Heath.

BB

Edited to say i think Pete got in there with a better explanation.


>> Edited by Ballistic Banana (moderator) on Monday 24th February 22:59

broadcom

Original Poster:

5 posts

264 months

Tuesday 25th February 2003
quotequote all
Thanks for the quick answers chaps. Now I can go in with my eyes wide open...