Since there are no moving parts on the 3.4 canister at least, I am guessing it does not really matter which way up it goes. The Fieros can has a vacuum operated valve so orientation may be important although I think the valve is spring loaded. I just mounted mine the same way up as the Fieros can.
No I do not get any oil out of the breather filter. It is as clean as when i put it on. To my understanding the PCV system needs one place air to get in and the other locations is for the intake to suck the air out of. I have the front cam cover 'T'ed into the PCV line coming out of the crankcase cover which goes into the intake right behidn the throttle body.
Chris
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08:10 PM
Aug 2nd, 2005
Steven Snyder Member
Posts: 3326 From: Los Angeles, CA Registered: Mar 2004
Originally posted by Tom Slick: thanks steven. do you have photo of the expansion tank cause i can't find mine (i have an '88). the previous owner probably took it out, if thats the case do i need to add it back?
Yeah, here's a pic so you can see where its located. This is the passenger side wheel well.. You need to add it back if its missing. One line on it goes to the fuel tank via a hard line, and the other goes to the evap canister. If you dont add it you will quickly destroy your evap tank on a hot day with a full tank of gas because liquid gas will likely go into the evap canister! 87-88s have the expansion tank because the space used for expansion in the earlier fuel tanks is used for actual fuel, thus requiring the use of a remote expansion area.
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01:49 AM
Tom Slick Member
Posts: 4342 From: Alvarado, TX Registered: May 2003
Originally posted by Steven Snyder: Yeah, here's a pic so you can see where its located. This is the passenger side wheel well.. You need to add it back if its missing. One line on it goes to the fuel tank via a hard line, and the other goes to the evap canister. If you dont add it you will quickly destroy your evap tank on a hot day with a full tank of gas because liquid gas will likely go into the evap canister! 87-88s have the expansion tank because the space used for expansion in the earlier fuel tanks is used for actual fuel, thus requiring the use of a remote expansion area.
thanks for the photo Steven.
well this just sucks!!! where the expansion tank is located is where i was going to mount my evap canister. now i got to find an expansion tank. i don't have any of that hardware in my car. it looks like the previous owner took it out.
thomas...
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08:02 AM
Aug 3rd, 2005
Steven Snyder Member
Posts: 3326 From: Los Angeles, CA Registered: Mar 2004
I think Rickady88GT used the expansion tank and charcoal canister from the donor car (Olds Intrigue?) for his 3.5 S* swap. If I understand correctly, they are integrated together as one unit. I am not sure of the size of the expansion tank, but I don't think Rick has had any problems with it so far. You may want to look into that, as it fits where the original expansion tank went and solves both problems.
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01:20 AM
Aug 7th, 2005
Tom Slick Member
Posts: 4342 From: Alvarado, TX Registered: May 2003
i got an expansion tank today (from a fellow PFF (MstangBware)) but i need to know which hose goes where. i assume that the line going into the tank from the bottom is the one from the fuel tank and the other one on the top of the exp. tank go to the evap canister. am i correct in my assumption?
now that the exp. tank is where i was going to put my evap. canister where am i going to hide this canister. does it have to be mounted higher that the exp. tank or at least the same height. i'm thinking about putting it in the area behind the inner fender wheel well close to the tail-lights. there seems to be a lot of empty space there. i want it out of sight since it's so big.
thanks...
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10:38 PM
Aug 8th, 2005
Steven Snyder Member
Posts: 3326 From: Los Angeles, CA Registered: Mar 2004
Your assumption is correct. The bottom port goes to the fuel tank, and the top goes to the evap canister. The line on the bottom of the expansion tank has a brief section of fuel hose that connects to a hard line. This hard line travels along the firewall to the hole leading into the fuel tank area. A rubber hose (covered in convoluted tubing) attaches to it there and connects it to the fuel tank. You could probably route the line in a much cleaner manner than the factory to keep it out of sight.
If you wanted to run lines all the way across the engine bay (or extend the existing ones for the original charcoal canister location) you could put the canister in the driver's side wheel well if the fuel tank filler tube isn't in the way. Come to think of it.. since the port on the expansion tank that feeds the vapor canister is up top, you probably could just put it beneath the expansion tank. If the expansion tank was filled up all the way it would flood it at nearly any location; there isn't much volume in those lines especially if its on the passenger side.