In tank fuel pump folks, what to do with expansion tank or vent options.... Options

[captain awesome]

So since I'm running a Subaru in tank pump it has misplaced my stock fuel expansion tank. What's the average folk doing with theirs to mitigate fuel stench?

[L-Jet914]

Do you still have the factory charcoal canister? Could run a line off the tank to the canister and then from the canister to the evap purge solenoid, then from the purge solenoid to the port on the throttle body/intake for evap purge.

[ClayPerrine]

Do you still have the factory charcoal canister? Could run a line off the tank to the canister and then from the canister into the the manifold/throttle body port for evap purge.

The can around the filler neck is an expansion tank. If you don't use it, the charcoal in the canister will get saturated with liquid gasoline and rendered ineffective. I would put a dent or dimple in the bottom of the expansion tank to clear the top of the fuel pump and put it back on. Then hook up the charcoal canister and connect up the Subaru canister purge valve system. It would also hide the pump and lines.

I connected up the 964 canister purge system on my 914-6 conversion. It worked quite well in keeping gas smell out of the garage.

[captain awesome]

Do you still have the factory charcoal canister? Could run a line off the tank to the canister and then from the canister into the the manifold/throttle body port for evap purge.

The can around the filler neck is an expansion tank. If you don't use it, the charcoal in the canister will get saturated with liquid gasoline and rendered ineffective. I would put a dent or dimple in the bottom of the expansion tank to clear the top of the fuel pump and put it back on. Then hook up the charcoal canister and connect up the Subaru canister purge valve system. It would also hide the pump and lines.

I connected up the 964 canister purge system on my 914-6 conversion. It worked quite well in keeping gas smell out of the garage.

I hadn't considered modding the 914 tank to fit over it. I'll have to see how much work that might take as I already cut the dang mounting tabs off the gas tank. It would be an easy repair but still a pain knowing I potentially made myself more work.

BTW I should have mentioned this earlier, while I may be using a Subaru fuel pump it's not a Subaru swap. This is for a Honda k24 which I plan to route the vent lines similar to the 914 factory.

[L-Jet914]

Do you still have the factory charcoal canister? Could run a line off the tank to the canister and then from the canister into the the manifold/throttle body port for evap purge.

The can around the filler neck is an expansion tank. If you don't use it, the charcoal in the canister will get saturated with liquid gasoline and rendered ineffective. I would put a dent or dimple in the bottom of the expansion tank to clear the top of the fuel pump and put it back on. Then hook up the charcoal canister and connect up the Subaru canister purge valve system. It would also hide the pump and lines.

I connected up the 964 canister purge system on my 914-6 conversion. It worked quite well in keeping gas smell out of the garage.

I hadn't considered modding the 914 tank to fit over it. I'll have to see how much work that might take as I already cut the dang mounting tabs off the gas tank. It would be an easy repair but still a pain knowing I potentially made myself more work.

BTW I should have mentioned this earlier, while I may be using a Subaru fuel pump it's not a Subaru swap. This is for a Honda k24 which I plan to route the vent lines similar to the 914 factory.

I would then run the evap lines from the expansion tank to evap purge solenoid on that k24, then from the purge solenoid to the intake port it goes to. If you are running the stock K24 ecu the engine came with.

[captain awesome]

Do you still have the factory charcoal canister? Could run a line off the tank to the canister and then from the canister into the the manifold/throttle body port for evap purge.

The can around the filler neck is an expansion tank. If you don't use it, the charcoal in the canister will get saturated with liquid gasoline and rendered ineffective. I would put a dent or dimple in the bottom of the expansion tank to clear the top of the fuel pump and put it back on. Then hook up the charcoal canister and connect up the Subaru canister purge valve system. It would also hide the pump and lines.

I connected up the 964 canister purge system on my 914-6 conversion. It worked quite well in keeping gas smell out of the garage.

I hadn't considered modding the 914 tank to fit over it. I'll have to see how much work that might take as I already cut the dang mounting tabs off the gas tank. It would be an easy repair but still a pain knowing I potentially made myself more work.

BTW I should have mentioned this earlier, while I may be using a Subaru fuel pump it's not a Subaru swap. This is for a Honda k24 which I plan to route the vent lines similar to the 914 factory.

I would then run the evap lines from the expansion tank to evap purge solenoid on that k24, then from the purge solenoid to the intake port it goes to. If you are running the stock K24 ecu the engine came with.

I will be running a Haltech ECU which I don't believe I'll be able to support the function of a purge solenoid. My plan was to route the hose from the charcoal tank back into the intake.

[L-Jet914]

Do you still have the factory charcoal canister? Could run a line off the tank to the canister and then from the canister into the the manifold/throttle body port for evap purge.

The can around the filler neck is an expansion tank. If you don't use it, the charcoal in the canister will get saturated with liquid gasoline and rendered ineffective. I would put a dent or dimple in the bottom of the expansion tank to clear the top of the fuel pump and put it back on. Then hook up the charcoal canister and connect up the Subaru canister purge valve system. It would also hide the pump and lines.

I connected up the 964 canister purge system on my 914-6 conversion. It worked quite well in keeping gas smell out of the garage.

I hadn't considered modding the 914 tank to fit over it. I'll have to see how much work that might take as I already cut the dang mounting tabs off the gas tank. It would be an easy repair but still a pain knowing I potentially made myself more work.

BTW I should have mentioned this earlier, while I may be using a Subaru fuel pump it's not a Subaru swap. This is for a Honda k24 which I plan to route the vent lines similar to the 914 factory.

I would then run the evap lines from the expansion tank to evap purge solenoid on that k24, then from the purge solenoid to the intake port it goes to. If you are running the stock K24 ecu the engine came with.

I will be running a Haltech ECU which I don't believe I'll be able to support the function of a purge solenoid. My plan was to route the hose from the charcoal tank back into the intake.

Ah okay. I would run the new purge line in front of the throttle body and not directly into the intake manifold. Similar setup to a 1.8 L-jet engine like mine where the evap line purges into the air cleaner assembly then that gets drawn into the intake. The fan is what supplies the fresh air to the canister for purge. You'll have to figure out a way for fresh air to come across the canister for purge.

[mb911]

You can make a canister that vents out the bottom with a screen and the canister with activated charcoal. I plan to make one for my car

[East coaster]

Here’s a link to the vent system in my Suby setup. I think you were asking about it on FB?

http://www.914world.com/bbs2/index.php?sho...470&st=300#