teddan Posted August 26, 2013 Share Posted August 26, 2013 I have removed my coal canister and I also bought one of these rolling over valves from volvo http://texasbulkstuff.com/images/fueltank_rollover-jeep175.jpg. No need for fancy valves when they are hidden;) But I don find any good place to hide it and I dont want to have the open hose that can have fumes behind the back wheels in case of I want to burn a couple of tires:eyebrows: I will connect the pipe that was going from the coal canister to the tank to this valve instead and then just vent it. Does any one have any suggestions where I can place it or where I can have the vent hose safe? Quote Link to comment Share on other sites More sharing options...
teddan Posted August 30, 2013 Author Share Posted August 30, 2013 Okay, I have 3 options where to place the venting hose from the tank. I have place the rollover valve directly on the top of the tank on the pipe that should be vent. 1. Just under the passenger seat. 2. Top of the tank. (just have a small hose after the rollover valve) 3. Straight under the tank. What would be the most safe place? Quote Link to comment Share on other sites More sharing options...
Digsy Posted August 30, 2013 Share Posted August 30, 2013 Probably not "option 1". Quote Link to comment Share on other sites More sharing options...
listy Posted August 30, 2013 Share Posted August 30, 2013 Place it somewhere that releases the fumes straight to the outside of the car. If needs be, run a hose to get it where you want it. Quote Link to comment Share on other sites More sharing options...
teddan Posted August 30, 2013 Author Share Posted August 30, 2013 Probably not "option 1". I dont like passengers thats smoke Quote Link to comment Share on other sites More sharing options...
ashbuster Posted August 30, 2013 Share Posted August 30, 2013 lol, cant you feed it into the rail? Quote Link to comment Share on other sites More sharing options...
David P Posted August 30, 2013 Share Posted August 30, 2013 (edited) Next to the ashtray might be the best place to remind you that the correct thing to do is blank it off. http://www.mkivsupra.net/vbb/showthread.php?203434-charcoal-canistr-removal&p=2942339&viewfull=1#post2942339 Edited August 30, 2013 by David P (see edit history) Quote Link to comment Share on other sites More sharing options...
mattdavies Posted August 30, 2013 Share Posted August 30, 2013 You do realise that petrol in its liquid state is not flammable, BUT the fumes are highly flammable Quote Link to comment Share on other sites More sharing options...
teddan Posted August 30, 2013 Author Share Posted August 30, 2013 I have read a lot of threads here and some of them state that you need to vent it and instead of blank it. But if it really works to block it I will do that, it is a lot easier and no fumes When I searched i had the same result as this. http://www.mkivsupra.net/vbb/showthread.php?253569-Hose-from-fuel-tank-to-charcoal-canister-on-NA-to-1JZ-swap I will block my pipe direct at the tank then Quote Link to comment Share on other sites More sharing options...
tony tt Posted August 30, 2013 Share Posted August 30, 2013 Hodge is the guy for that question bud. Quote Link to comment Share on other sites More sharing options...
Jos Posted August 30, 2013 Share Posted August 30, 2013 The reason I vented my fuel tank after cannister removal is that I did'nt notice pressure buildup in the fuel tank before the cannister removal, so was logical for me to make sure it stayed like that, even after cannister removal? I don't get a fuel smell, and my car is parked in a garage, so would smell it if a lot of fumes were escaping. But I would like to know a definite answer also... Quote Link to comment Share on other sites More sharing options...
David P Posted August 30, 2013 Share Posted August 30, 2013 (edited) The whole idea of venting though the charcoal filter is to remove petrol fumes. With a charcoal filter venting the system, there's less pressure in the tank after it has stood for a while. The fuel tank and pump are designed to operate with 2 psi tank pressure. Without the charcoal filter, any excess pressure is vented by the filler cap that is a 2 psi valve/vent. Edited August 30, 2013 by David P (see edit history) Quote Link to comment Share on other sites More sharing options...
Dim Sum Posted August 30, 2013 Share Posted August 30, 2013 The whole idea of venting though the charcoal filter is to remove petrol fumes. With a charcoal filter venting the system, there's less pressure in the tank after it has stood for a while. The fuel tank and pump are designed to operate with 2 psi tank pressure. Without the charcoal filter, any excess pressure is vented by the filler cap that is a 2 psi valve/vent. Deja Vu Quote Link to comment Share on other sites More sharing options...
David P Posted August 30, 2013 Share Posted August 30, 2013 (edited) The Old Supra Wives Tale; Knit one, purl two and cast-off three, should be known as the Molotov Cocktail Conversion. Edited August 30, 2013 by David P (see edit history) Quote Link to comment Share on other sites More sharing options...
ashbuster Posted August 30, 2013 Share Posted August 30, 2013 so the cap vents anyway? so why dont everyone block it off then? i was under the impression it was because the cap didnt vent Quote Link to comment Share on other sites More sharing options...
teddan Posted August 30, 2013 Author Share Posted August 30, 2013 so the cap vents anyway? so why dont everyone block it off then? i was under the impression it was because the cap didnt vent There are double information..... some say it vent and some say it does not vent.. Quote Link to comment Share on other sites More sharing options...
David P Posted August 30, 2013 Share Posted August 30, 2013 The Workshop Manual says it vents @ 2 psi and miraculously, it does. Maybe Old Supra Wives have a problem with reading. Quote Link to comment Share on other sites More sharing options...
paulj1 Posted August 30, 2013 Share Posted August 30, 2013 What is the advantage of charcoal filter removal apart from cosmetic Quote Link to comment Share on other sites More sharing options...
David P Posted August 30, 2013 Share Posted August 30, 2013 I removed mine because I needed the space for other components, or/and with all pipes removed around a kilo weight loss. Can't think of any other reason unless old glue sniffers get off on the Molotov conversion version. Quote Link to comment Share on other sites More sharing options...
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