Like a lot of people I removed the original Carbon Canister from the car to improve airflow through the larger aftermarket IC.

 

http://s95014253.onlinehome.us/63104/6901.html

 

However, I wasn't happy with the smell of petrol (not strong but definitely there) that resulted. This was most noticeable when

opening up the garage, especially on a hot day. I felt this could potentially mask a more serious problem with a leak from the fuel

pipework in the engine bay. My solution was to refit a smaller CC from a Skyline GTST relocated to a new position in front the

engine radiator and reconnect all the pipes as before (except the one on the intake pipe from the air filter).

 

Result, no more petrol smells and no CC behind the IC to disrupt airflow.

 

-Andrew

 

Nice thanks Andrew that's a good tip

I'm just removing mine and fitting my greddy smic, I'm not sure it'll even fit back in its place with deeper core coolers fitted? I guess your tip is the way forward, cheerZ Andrew :)

Andrew, what model gtst did the canister come from? Why did you not reuse the pipe from the intake?

Andrew, what model gtst did the canister come from? Why did you not reuse the pipe from the intake?

 

The canister came from a GTST (T for turbo model). I posted a wanted on the http://www.skylineowners.com forum. Think I paid about £10.

 

The original CC I removed had two purge connections, one of which went to the intake pipe near the air filter. The GTST CC only has one purge

connection. Otherwise plumbed in as before.

 

-Andrew

 

The canister came from a GTST (T for turbo model). I posted a wanted on the http://www.skylineowners.com forum. Think I paid about £10. The original CC I removed had two purge connections' date=' one of which went to the intake pipe near the air filter. The GTST CC only has one purge connection. Otherwise plumbed in as before. -Andrew [/quote']

Sorry, I meant what model as in r32, r33, r34? :)

So you blanked off the redundant purge line and extended the fuel lines from the rigid pipes in the intercooler area to where you installed the skyline cc? Sorry for all the questions, I'm not sure what's what at the mo as the delete link doesn't work for some reason.

 

Kind of on topic; you have greddy smic also? Have you left the overflow and washer bottle in position, using the oem lower vacuum vents or have you a different setup?

The one I got came from an R33. I would have thought the others would be similar, but I don't know for sure. The photos below

give two views of the CC I am using for your reference:

 

 

I blanked off the outlet near the air filter and extended the existing CC lines to the new loaction (including the line that runs into

the frame rail).

 

I am using HKS SMICs (for now). I've left the OEM overflow bottle in position and swapped the OEM UK washer bottle for a Japanese

version which is smaller. I've got the OEM vents in the liner (underneath and behind the ICs). You can see that there is quite a lot of space

behind the IC when you relocate the CC. Not so good for the washer bottle side, but better than it was.

 

Photos below (the overflow bottle photo is from another car):

 

 

Thanks for the advice :)

Could you not just feed the vent into the intake side to save fitting a cc and get rid of the smell?

Could you not just feed the vent into the intake side to save fitting a cc and get rid of the smell?

 

This explanation makes sense to me:

 

http://www.ehow.com/how-does_5047404_carbon-canister-work.html

Good tip Andrew - thanks for sharing mate!

 

Richard:cool:

Andrew, do you happen to know why the original setup has 2 hoses (joined into 1) going into the lower pipe on the CC?

One is a 12mm ID hose and the other 6mm. Did you just tee these back together then onto the R33 CC or can one of them be deleted?

You mean these ones (lower green arrow)?

 

 

It is a strange setup isn't it? There is no valve in the black plastic connector (bottom right) which tees the two

12mm pipes. So the 6mm and 12mm pipes seem to be doing the same job.

 

I connected the new GTST CC bottom connection to the frame rail connection:

 

 

The other small pipe going into the frame rail - I removed the valve plate assembly:

 

 

(I also deleted all the redundant CC hard lines running from the engine compartment to the old CC).

Edited February 8, 201411 yr by AndrewG

I am using HKS SMICs (for now)

 

Do please tell me when you decide you want to replace these. What would you go with? Ashspec masives?

Do please tell me when you decide you want to replace these. What would you go with? Ashspec massives?

 

Sure, that's the plan along with the 2.5" pipework.

Let me know when your HKS ones come up for sale. I can confirm, you have a buyer should you decide to sell them. :)

You mean these ones (lower green arrow)?

 

[ATTACH=CONFIG]76986[/ATTACH]

 

It is a strange setup isn't it? There is no valve in the black plastic connector (bottom right) which tees the two

12mm pipes. So the 6mm and 12mm pipes seem to be doing the same job.

 

I connected the new GTST CC bottom connection to the frame rail connection:

 

[ATTACH=CONFIG]76991[/ATTACH]

 

The other small pipe going into the frame rail - I removed the valve plate assembly:

 

[ATTACH=CONFIG]76995[/ATTACH]

 

(I also deleted all the redundant CC hard lines running from the engine compartment to the old CC).

 

Yep they're the ones I mean. I have tee'd the 6mm and 12mm into the CC. Where does the 6mm one that you removed go to?

I ended up making a bracket to fit the gtst CC in the oem location (albeit slightly higher) utilising one of the original mounting bolt locations and it's pretty much clear of the intercooler exit path so I'm going to use that as a permanent location.

I have kept all the rigid lines from the engine bay for this reason and connecting up all the top hoses was very quick/simple as they only required slight trimming. I just need small lengths of 8mm and 6mm and it'll be sorted.

CheerZ for the heads up and advice on this one Andrew, an inexpensive and simple modification to let the intercoolers work more efficiently :)

Edited February 8, 201411 yr by Joely P

I have tee'd the 6mm and 12mm into the CC. Where does the 6mm one that you removed go to?

 

The one I removed (goes valve plate assembly) is the same one you tee'd with the 12mm.

Glad the modification works for you.

Yeah, I tee'd those before your reply as it seemed logical just to keep them the same. But I was curious as to where the pipes actually go to work out whether to delete them.

I'm just trying to get my head around the system as the schematic diagram doesn't show where the air inputs from underneath actually come from.

They go into the chassis frame rail internals. From my understanding of the system they have two roles.

Firstly, air is drawn through them into the CC when the CC is purged of petrol vapours into the engine.

Secondly, if the CC becomes saturated (normally this would be when the engine is switched off) then

petrol vapours are vented back into the frame rails.

Ah I see. There's me trying to work out what intricate and complex path they might take and what systems they might link in to, when all along they don't really go any further then I can see!

Thought I would update this in case anyone else was thinking of a delete or relocate like Andrew.

I opted to install the same canister from an R33, but in the original location. A simple and straight forward swap over and still frees up the cooler exit airflow significantly.

[ATTACH]77961[/ATTACH]

[ATTACH]77962[/ATTACH]

Thought I would update this in case anyone else was thinking of a delete or relocate like Andrew.

I opted to install the same canister from an R33, but in the original location. A simple and straight forward swap over and still frees up the cooler exit airflow significantly.

:lol: Now this is why our forum is better than FaceBook.

I found an old post whist looking for something utterly unrelated and thought I’d add to it with a link to something that may have been relevant and interesting to posters of that subject.

That subject then goes off on a different angle which in turn leads me to this post. Now I find myself wanting to change my CC for an R33 unit to solve a problem I never knew I had.

 

Great work guys! :clap: Now all I have to do is find and fit the new unit. :yes:

Banzai breakers can supply you with one of these.

Cheers Joely. I had a look at a few last night, theirs looked a bit scabby. I did find another one that looked a lot les rusty and better for a restoration rub down.