I have been all over looking for a liquid check valve and a rollover valve. Been to all the major autoparts store's and they just look at me like I'm crazy. I found some online at Georges, but had two questions before moving on.
A few Quick questions
1. Has anybody found an alternate replacement for these?
2. For the Liquid Check Valve, I understand it's purpose is to keep fuel in the line between the tank and fuel pump. Is this correct? If not, what does it do?
3. While I am trying to get the jeep running, is the roll over valve really needed? or can I just plug the end of the line without affecting anything.
The jeep is currently on a set of jack stands and not coming down anytime soon.
I have always thought that the "Liquid check valve" served as a vent(via charcoal cannister) until the unfortunate event of a roll-over, then it would shut off, preventing fuel from spewing all over the place.
The liquid check valve allows vapors to pass through to the canister, but prevents liquid fuel from passing. It works when the Jeep is right-side-up. The rollover check valve shuts off fuel flow if the Jeep becomes upside-down.
Nice find indeed! Been looking for a replacement one for awhile as my OEM one has a rusted hose barb on it and can't be used unless a braze on a new hose barb.
I'm confused. I just looked up under my '84 and don't have any valves that look like that. I just looked in my Chiltons and it shows that setup for 79-81 and in-tank valves for 82-86. But Keith's '84 obviously has them. Or does this depend on if you have 15 or 21 gallon tank?
Hmm. Interesting. It looks like the Delorean part is opposite of the Nissan. It has the the bottom nipple labeled "Tank" and the top nipple labeled "can vent", so the diagram would be correct. The Nissan must be different internally.
Just to add to the intrigue, the top of the Delorean part is embossed with the Chrysler pentastar logo and has the number 04091. There is also the number 4002012 on the bottom of the part. IIRC, Deloreans were just like Jeeps - they sourced parts from everywhere.
Just to add to the intrigue, the top of the Delorean part is embossed with the Chrysler pentastar logo and has the number 04091. There is also the number 4002012 on the bottom of the part. IIRC, Deloreans were just like Jeeps - they sourced parts from everywhere.
Yes, I see those markings also which tells me that the Rollover Check Valves should still be available from Chrysler Parts dept. The bottom No. 4002012 is probably part of the P/N and I'll have my buddies over at Chrysler try to decipher it for us.
When you get the Rollover Check Valve mounted up, pictured below is what you should end up with.
great Info! QUESTION... since I am in the process of re-installing my evap to decrease petrol fumes, I peeked under and only see the liquid check valve, no roll over valve..did all 1976 come with them? also my tank has be replaced and has one vent..should I just put in a Y to connect to the two lines in the check valve
I got the rollover valve but coming up empty on the liquid check valve to complete my swap to the 15 gal tank. Why couldn't you use two of these off the tanks vents, then T back to one hose to the rollover valve? The check valve just lets gas fumes to pass and prevents gas from traveling up the lines, correct?
I got some from NAPA and or AutoZone, the rest of my original OEM's I sandblasted and powder coated.
You can also get them from here: http://www.inlinetube.com/ listed in the side bar index under Brake Clips and Clamps.
The roll-over valve has one inlet and one outlet. The liquid check valve has one output that goes to the rollover check valve, and two "inlets" that go to the tank. Not sure they are both truly "inlets", one may be an outlet back to the tank for liquid return, I'd have to take the valve apart to know.
That picture you are referring to shows a missing input hose barb. That is the reason I needed a replacement one as it had rusted off completely beyond use. The plastic replacement one from the Delorean website fit the bill perfectly and it will never rust.
Anyone know where I can purchase the panel where these two valves mount? Mine is pretty rotted out. Maybe I can get a deal and wont have to fab a new part.
Sorry to bring up an old thread but have a couple questions ...
We ordered the same delorean rollover that keith has shown and received it the other day in the mail. One question ... what is the 3rd inlet/outlet that is perpendicular to the other two - the one that goes through the wheel house support baffle? I'm not by the jeep right now but I don't recall this being on the on the factory metal one. Can someone explain to me what this is for? I understand the concept of the rollover vavle and the inlet outlet but the third one has me puzzled - maybe I'm just not getting it.
Sorry to bring up an old thread but have a couple questions ...
We ordered the same delorean rollover that keith has shown and received it the other day in the mail. One question ... what is the 3rd inlet/outlet that is perpendicular to the other two - the one that goes through the wheel house support baffle? I'm not by the jeep right now but I don't recall this being on the on the factory metal one. Can someone explain to me what this is for? I understand the concept of the rollover vavle and the inlet outlet but the third one has me puzzled - maybe I'm just not getting it.
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