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Unread 01-10-2013, 05:55 AM   #1
qlfarm
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1990 YJ Wrangler 
 
Join Date: Jul 2011
Location: State College, Pennsylvania
Posts: 218
Roll Over Valve?

My YJ still stinks like gas (I have been fighting this for two years now). I have replaced the carb, charcoal canister, fuel lines, vac lines, dropped the tank and untold other "ideas" that I had to stop the smell. None of them worked. I am tired of my garage stinking of gas and my wife wants to ban the YJ to the barn.

In order to keep my beloved mistress where I can keep a watchful eye on her and keep the rodents from living in her.

I want to eliminate the roll over valve (whatever the thing is called on the passengerís side rear). I have looked for new ones and haven't had any luck.

If memory serves me right there are two vac lines from the fuel tank that lead to this thing. Can I simply connect the two lines together and eliminate this contraption?

See ya,

Skip

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Unread 01-10-2013, 06:34 AM   #2
Louie4
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Quote:
Originally Posted by qlfarm View Post
My YJ still stinks like gas (I have been fighting this for two years now). I have replaced the carb, charcoal canister, fuel lines, vac lines, dropped the tank and untold other "ideas" that I had to stop the smell. None of them worked. I am tired of my garage stinking of gas and my wife wants to ban the YJ to the barn.

In order to keep my beloved mistress where I can keep a watchful eye on her and keep the rodents from living in her.

I want to eliminate the roll over valve (whatever the thing is called on the passengerís side rear). I have looked for new ones and haven't had any luck.

If memory serves me right there are two vac lines from the fuel tank that lead to this thing. Can I simply connect the two lines together and eliminate this contraption?

See ya,

Skip
I'm unsure for you '90 model but I recall on my YJ there are 2 white vents on either side of the top of the tank. My vacuum hose was pinched and actually fell off. I replaced the hose with fuel line hose. Basically they are tied together with a tee vacuum connector and go to a metal line parallel to the fuel lines on the frame. It goes to the engine compartment where that vent line attaches to the charcoal canister.

I didn't recall having a rollover valve mounted up in my back corner panels (that I know of).

Have you check that you're getting vacuum to the canister and that it's hooked up properly?
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Unread 01-10-2013, 07:21 AM   #3
Que89YJ
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1989 YJ Wrangler 
 
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Location: Detroit, Michigan
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Not a problem. You cant keep your mistress out in the barn, she will start to feel neglected...you don't want to piss off your Jeep!
Replace the rubber that goes over top too. This place has what you need:

http://www.mtscompany.com/jeep.htm
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Unread 01-10-2013, 08:06 AM   #4
qlfarm
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1990 YJ Wrangler 
 
Join Date: Jul 2011
Location: State College, Pennsylvania
Posts: 218
I looked at the MTS site; it just shows the cover; is that all you replace?

Can I just hook the two tank nipples together and see if that fixes the problem before I order yet another part that may/may not be bad? Will it run like that?

Canister has vac to it and is hooked up based on vac diagrams. I had replaced all of the tank hoses when I pulled it and checked the gasket when I first got the Jeep. I also replaced the fill/vent lines to the tank.
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Unread 01-10-2013, 08:14 AM   #5
89yjparrothead
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Check the seal for your fuel level unit. I had the same problem and replaced the seal and was good to go. The unit is a rectangle on the top of the tank in the middle. Good luck!
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Unread 01-10-2013, 08:40 AM   #6
jbolty
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dealer part #'s

valve = J5360058 $8.85
connector = 53004047 $24.25

There have been some recent reports of these being a little cheaper now.

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Unread 03-04-2013, 06:43 AM   #7
Cherokid
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1989 YJ Wrangler 
 
Join Date: Apr 2009
Location: Long Beach, CA
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roll over valve pricing at GET Jeep Long Beach Ca

Hey, just an add on to this thread. Been looking for this for about six months, used the above listed part numbers (thanks Jbolty!) and paid $11.90 for the valve and $11.75 for the connector. Valve was in stock, connector 1 day out. Swapped in no more leak. Thanks again Jolty for the part numbers.

Good Wheelin to you all,

Cherokid
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Unread 03-04-2013, 06:51 AM   #8
bluedeval03
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1990 YJ Wrangler 
 
Join Date: Apr 2012
Location: Danville, KY
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Quote:
Originally Posted by qlfarm View Post
My YJ still stinks like gas (I have been fighting this for two years now). I have replaced the carb, charcoal canister, fuel lines, vac lines, dropped the tank and untold other "ideas" that I had to stop the smell. None of them worked. I am tired of my garage stinking of gas and my wife wants to ban the YJ to the barn.

In order to keep my beloved mistress where I can keep a watchful eye on her and keep the rodents from living in her.

I want to eliminate the roll over valve (whatever the thing is called on the passengerís side rear). I have looked for new ones and haven't had any luck.

If memory serves me right there are two vac lines from the fuel tank that lead to this thing. Can I simply connect the two lines together and eliminate this contraption?

See ya,

Skip
the roll over check valve is a dealer only item. I have spent many hours trying to find one online, always end up at dealership for one. Actually on my third one, two in the last 6 years. Seems quality is out the window for the rubber content on these as the last one dry rotted.
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