There is also another brass restrictor tube between the tank outlet and the
vapor canister in the trunk. It has a needle-sized hole in it. Mine got
plugged up several years ago and caused the gas tank to collapse (implode).
My engine would slowly increase in speed (idled at 2500 - 3000 RPM) as the
vacuum in the tank increased. Popping the tank filler cap every so often
would released the vacuum and the engine would then settle down until the
vacuum built up again.
During restoration I cleaned and flushed out both carbon canisters with
water. A lot of crud came out and now they seem to work fine.
Reid
'79 Spitfire (original owner)
-----Original Message-----
From: Walt Fogle [mailto:foglew@hotmail.com]
Sent: Wednesday, March 01, 2000 8:55 AM
To: speedracre@netzero.net
Cc: spitfires@autox.team.net
Subject: Re: Carbon canistor - runs like cra...
Patrick:
Your carbon canister looks pretty old. Perhaps it's too clogged to allow a
free flow. Also, once you hook it up you're drawing fumes from the fuel
tank. There is an absorption canister in the line from the tank that is
accessed from the interior panel behind the seats. You might want to check
those lines and the absorption canister too.
Also, is there a "restrictor" in place in the middle connector on your
carbon canister? It's just a small piece of plastic that reduces the
diameter of the connector.
Good luck,
Walt Fogle
'73 Spit 1500
'69 TR6
Patrick wrote:
>
>OK
> I've discussed my carbon canistor awhile back. It was a question of
>hose routing.
>
>All hoses were correct except the one off the bottom of the canistor.
> It goes from bottom of canistor to a pipe that is bolted to the middle
>of the intake with a large hax nut. As shown in web page linked below.
>
>Everyone said it should go to Anti run on valve and then to back/top of
>intake.
>
>They are right. I found that the end of the metal tube is sealed shut ,
>the hose went there for no reason.
>
>So I hooked it up right with the motor running.
>
>Heres the scenario:
>
>I had the top back of the intake plugged. Car ran good, not perfect,
>Spits and sputters here and there
>
>I remove plug from rear/top intake. engine runs rougher and faster but
>keeps running
>
>I hook hose from anti run on valve to intake. KILLS motor almost as
>soon as I hook it up. Will not start unless choke all the way on and
>once running, turn choke off and have to peddle it to keep it barely
>running.
>
>Any ideas? I'm becoming very discouraged. so close yet it seems so far
>away.
>
>I've whipped up a web page with pictures of my hose routing on the 74.
>The hose from bottom of canistor is removed.
>It is now canistor to anti run on valve to top/rear of intake.
> http://www.dol.net/~starborn/carbon.html
>
>THnx
>Pat
>
>
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