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Post by krimes13 on Jul 30, 2008 8:35:23 GMT -5
I guess fuel issues fall better under Mechanical than anything else.
My CJ-7 left me walking yesterday. It just went to sputtering and was hard to crank untill it just wouldn't fire up. I knew it wasn't out of gas b/c I filled it up the day before. Managed to get it on a trailer and home.
I already had a new sending unit on order b/c my guage has been real screwy. ( "ran out" at a 1/2 tank ) I decided to siphon the gas out since I would be dropping the tank soon anyway and that's a very valuable commodity.
Then it got bad. Using a clear hose, I could see all the nastyness that was riding around in my tank.
I have the 20 gal. poly tank. What is a recommended product or method to breaking up the sludge and getting it poured out. I only got out about 15 gal. of gas/sludge/water. I figured anything else in there is probably not very good for the Jeep anyway. ( and I was out of gas cans)
Thanks for any info!
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Post by broncocraigellis on Jul 30, 2008 22:27:32 GMT -5
I'm actually going through the same thing with the 4runner. It had 1/2 tank of gas sit for over 5 years, so the gas turned into really thick black varnished goo. The top half is also rusted from sitting.
I pressure washed mine with the pump out, and I'm planning on putting marbles or pebbles in there with sea foam or carb. cleaner and shaking the crap out of it until it comes clean.
Let me know if you find another way without having to vat it.
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Post by krimes13 on Jul 31, 2008 14:10:29 GMT -5
I got the tank out and dumped out the remaining petroleum product ( not sure I'd call it gas ). There was something rolling around in there, thought it was a rock, but it was the remnants of an old filter. I had dumped the old gas into a white bucket so I could see what was there, after fishing for filters the gas had settled out so i scooped some of the old gas off the top and poured it back in the tank and sloshed it around and dumped and repeated. I looked in the tank with a flashlight and took a piece of wire like a coat hanger and scraped on the bottom and it didn't seem to be any sludge at all; just a little grit.
After blowing out the lines and replacing the filter, I feel fine with the cleanliness of the tank.
My new dillema is that my new sending unit did not come with the filter to go on the bottom of the pick-up tube. This seems to be a difficult item to find. Would it be recommended to keep searching or "come up with something".
I was thinking to extend the tube since it stops about 4" short of the bottom of the tank anyway and have a screen of some sort on the end.
What do ya'll think?
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Post by MyNameIsMud on Jul 31, 2008 16:34:13 GMT -5
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Post by jharfst on Jul 31, 2008 16:49:57 GMT -5
My new dillema is that my new sending unit did not come with the filter to go on the bottom of the pick-up tube. This seems to be a difficult item to find. Would it be recommended to keep searching or "come up with something". I got one you can have. I had bought one then got a whole new sending unit which came with one also. I think the ones for the CJ7 and CJ5 are the same. It increases the length of the tube a couple of inches and just sits above the bottom of my tank. I'll try and remember to bring it with me to work tomorrow and give it to you if you want. I need to give you back that exhaust manifold that didn't fit anyway. -jim |
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Post by krimes13 on Jul 31, 2008 22:27:40 GMT -5
THANKS Jim, that would be great. I really need to get it up and running this weekend b/c my wife's vehicle is going in the body shop early next week so I will need it to get to work.
If you'll let me know whats a good time I'll come by and pick them up and replace it as soon as I get one ordered.
By the way, thanks also "mynameismud".
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Post by jharfst on Aug 1, 2008 0:10:58 GMT -5
Hmmm, According to the parts link, cpw lists a different one for the 15 gallon and the 20 gallon tanks. Not sure what the difference is except maybe for the length. (Pictures look the same). The place where I ordered mine( www.jeepdoc.com/catalog/zproducts.asp?id=81), shows the same one working for both although it looks closer to the one in the cpw link. You still working on Lynn Lane across from McKee park? I can drop by there while I'm out at lunch and you can try it out and see. -jim |
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Post by krimes13 on Aug 1, 2008 8:47:59 GMT -5
I am still there. As long as it fits on the pick up tube I'm willing to try it out.
Any thing that gets me up and going this weekend will work for me.
If anything changes and I need to come by, just give me a call 662-374-3525
Thanks again!!
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Post by jharfst on Aug 4, 2008 9:59:11 GMT -5
Did it work?
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Post by krimes13 on Aug 4, 2008 22:40:35 GMT -5
I got it fired up LATE last night. I only put about a gallon of gas in the tank to see if it would pull from that low and it took a while to refill the lines, but it does work.
My only issue is that the guage is at 1/2 tank. Went to the gas station and put a couple gallons in and it came up to 3/4.
I guess that "one day" I'll drop the tank and bend the float arm up and adjust untill I get it to empty. That thought went through my head last night but as I said it was late and I didn't have an extra set of eyes to keep checking the guage.
Jim, at the next meeting, I've got your dinner! Thanks again.
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Post by jharfst on Aug 5, 2008 15:44:06 GMT -5
Cool. Yeah that's what I like about the inline electric pump I added to my CJ. Just turn on the key, let it sit for about 2-3 seconds to pressurize the lines/fill the bowl, and then it fires right up, not to mention it definitely helps to get the fuel up to the engine on steep inclines.
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Post by krimes13 on Aug 5, 2008 17:55:20 GMT -5
Did you just put the electric pump in along with the rest of the system or did you delete/go around the original pump?
I'm looking for anything to help with reliability!
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Post by broncocraigellis on Aug 5, 2008 22:22:39 GMT -5
I bypassed the mechanical pump on my bronco. If you can find a fuel pressure regulator that will dial bet. 1-5 psi, you can get your carb to run great at all angles. I used that setup in Moab to go up some very steep inclines.
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Post by jharfst on Aug 6, 2008 23:43:46 GMT -5
Right now I'm running it in line with the rest of the original system. The idea was if the electrical one goes out, it's supposed to flow through and I can limp home with the mechanical (given the excellent shape the electrical system is on my CJ  . Only down side I can see is I have seen the diaphram blow out in mechanical fuel pumps (usually the reason they fail) and I can envision the electric blowing fuel out the vent hole on the manual pump if that happened. I added a pre-filter before the electric pump back at the tank along with the usual filter at the engine. The stock-type fuel filter at the engine has two outputs providing a return line back to the tank. I've thought about just removing the manual pump and making a block-off plate. Just haven't done it yet. The electric pump I got from O'Reilly is only a 3-5 psi pump designed for carbs so I didn't need a regulator; especially with the return line coming off the engine filter. I added the electric pump because I had problems with the mechanical not being able to pump enough fuel while going up a steep incline at low engine revs so Craig is right that it will help that a bunch. |
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Post by broncocraigellis on Aug 9, 2008 23:46:56 GMT -5
Yep, I ran basically the same setup as you Jim. I had a purolater electric pump but still ran the regulator. I read on an EB forum years ago to use the regulator as well at about 2psi for crawling around. It seemed to keep the carb from stumbling as much when I rammed into something abruptly. Either way works great, IMO.
I like your idea about leaving the mechanical hooked up. I just left mine bolted on without a line going to it. Probably wasn't good for the mech. pump but oh well.
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