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Triumph TR6 - Evaporative Fuel Loss Control System

Hey, a little help here, please. My 72 has no evap. system at all,(dumped by po at sometime)how important is this item to the:
A: General driveability of my car
B: Does lack thereof create any larger chance of fuel smell/leak/fire in the general underhood area.
Any help given is greatly appreciated.
I don't know if I am being to anal for my own good on this one, the pieces at brief scan seem to be very expensive and if not really needed then I will spend it some where else.
Thanks, Keith
KBD Dixon

Keith
If everything is removed then where it went to has to be pluged. There is (was) a connection at the front of each carb and at the valve cover. These have to be pluged. If carbs not pluged then u have a vacuum leak at both carbs and will definitely affect engine idle performance. Make sure these are pluged good-an-tite. You want to make sure the fuel tank connector that went to the carbon canister is also pluged....no fuel fumes. The valve cover should be pluged also for engine fumes. Hopefully engine is in good shape otherwise u will be pressurizing the valve cover area. If u have the carbon canister still sitting there , leave it alone. Keith The only thing that is expensive is the carbon canister and I do not think it is available...except at swap meet or from doner car. The hoses and T connectors can not be that expensive. The only thing I would question is the valve cover and the posibility of it pressurizing. Other than that, you should not have any excess smells if all is pluged properly.
Rick
Rick Crawford

Rick, Thanks again, there is no carbon canister at all, at the tank the line is plugged not very professionally but it works. At the carbs there are hoses(ie:standard size heater type hose that is usually found in this area) that run from both carbs into a T joint that runs back to the valve cover there are no open areas in any hose or joint that I can find. I understand what you mean about the T fitting that runs to the canister, that is the only thing that is missing underhood, no canister no T no hose connecting same. Idle is smooth and steady either cold or hot in a range of 600-1000rpm no lumps or bumps and strong enough to pul the little beast from a stand still. I guess 1 concern is that the hoses (carb to valve cover) sometimes seem to sweat which has made me think of the canister and assorted BS because the sweat does not seem right. I guess I will have to find a canister and rebuild it eventually just for piece of mind. If the explained setup would seem to cause any problems that you know of, any help is greatly appreciated.
Keith
KBD Dixon

Keith
Sounds like the way it is set is working OK. That is interesting re the sweat. As u can appreciate the direction of "flow" is from valve cover to both carbs and the canister...you have only eliminated the canister...maybe because no canister all of the hot air is going to the carbs and carbs are colder....gees u got me. Not sure...does not make sense. Simply as u said, adding the canister back into the equation might solve this. She is running OK..no leaks..ya got me on the sweat. In reality sweat only occurs when hot and cold air come together and sweat builds up on the object seperating the 2 air masses. Does this only occur in early (colder) mornings? Does this happen in the heat of the summer? Maybe I am just fishing for an answer.
Rick
Rick Crawford

Rick, The sweat condition does occur mostly in colder weather perhaps this is the cause my concern would be that the condensation would create a problem at the carbs or otherwise I guess I will keep my eyes ope for a canister and monitor the condition as I start to drive in the next few months.
Thanks, Keith
KBD Dixon

Keith condensation will form on the cold side..this is good..well u know what I mean. That would be interesting to see if the addition of the canister eliminates this. Not sure how u are going to monitor this... I do not know about u but I tend to be behind the wheel when my car is traveling down the road:)
Rick
Rick Crawford

I will keep you posted as to progress, I haven't found a retail source for a canister yet but as long as it runs great I will look as I can, at swaps etc. and I like the view from behind the wheel also.
Thanks, Keith
KBD Dixon

This thread was discussed between 18/03/2002 and 20/03/2002

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