Advice on engine hoses (problem inside)

[GT2BH]

Not sure whether I'm unlucky, clumsy, or if my car is falling apart (or all three!)

I managed to finally replace my fuel accumulator and filter as below.


While doing the install I hit one of the hoses with my arm and it broke. It connects to the airbox and goes into the engine wall as far as I can tell.



2 questions - first, what is it? and more importantly, do I just replace with OEM hoses or are there better quality after-market types I can use that will last longer?

[Flat6pac]

Its the vent to burn any fumes from the charcoal canister. Lots of times the canister has been unhooked or removed.
Bruce

[GH85Carrera]

If you still have a charcoal canister just about any vacuum hose will work as a replacement. If you want OEM looks that cloth wrapped hose is available.

If you just plug it you will notice a gas smell that can stink up a garage. The charcoal canister is just something to keep the gas stink down.

[Trackrash]

I had one of those EVAP hoses break near my exhaust.

I was lucky the resulting FIRE did not spread.

[johnsjmc]

You can trim it and splice it with a small piece of tubing .BUT you probably should start replacing some of the other hoses in there as a routine . They don,t last forever even if they look OK they get brittle with age.

[GT2BH]

Thanks guys. I've now researched a bit about the charcoal canister and it seems like it doesn't harm to keep it. Meanwhile, can I just plug both sides of this hose or should I leave it as it is?

[johnsjmc]

Originally Posted by GT2BH

Thanks guys. I've now researched a bit about the charcoal canister and it seems like it doesn't harm to keep it. Meanwhile, can I just plug both sides of this hose or should I leave it as it is?

You should reconnect it ,any piece of tubing ( metal or plastic) will work to connect the two ends. maybe there is enough slack to just reattach the long end back to the air box.
If left open your air filter inhales dirty air thru it(admittedly not much) and the fuel system metering is expecting a certain quantity of fuel vapour from that source, also not much but some..
The main purpose of the evap canister is to collect fuel fumes that are evaporating either during a refuel or ,while parked .Then it purges the canister when running.
As pointed out by someone above disconnecting can introduce a gas smell under the hood under some circumstances.
It,s a smog control device which doesn,t use any horsepower ,only adds minimal weight and why not keep it functional.?

[GT2BH]

Originally Posted by johnsjmc

You should reconnect it ,any piece of tubing ( metal or plastic) will work to connect the two ends. maybe there is enough slack to just reattach the long end back to the air box.
If left open your air filter inhales dirty air thru it(admittedly not much) and the fuel system metering is expecting a certain quantity of fuel vapour from that source, also not much but some..
The main purpose of the evap canister is to collect fuel fumes that are evaporating either during a refuel or ,while parked .Then it purges the canister when running.
As pointed out by someone above disconnecting can introduce a gas smell under the hood under some circumstances.
It,s a smog control device which doesn,t use any horsepower ,only adds minimal weight and why not keep it functional.?

Thanks for the input.. I'll try to bridge the connection until I drop the engine and deal with all these issues

[Trackrash]

It looks like your fuel lines are in better shape than the vapor hoses.

Rotten or brittle fuel hoses are a recipe for disaster. Do you carry a fire extinguisher?

[GT2BH]

Originally Posted by Trackrash

It looks like your fuel lines are in better shape than the vapor hoses.

Rotten or brittle fuel hoses are a recipe for disaster. Do you carry a fire extinguisher?

Thankfully the fuel lines are in good shape. I plan on dropping the engine and updating all the hoses, fuel and oil lines once the weather is better.. can't do it now in this 40c+ heat..

I didn't carry an extinguisher but will make sure I keep one handy from now on.. thanks for the advice

[BoxsterGT]

I can help you with any hose question on the early CIS 911's.

Len at Autosportengineering dot com