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Unread 09-27-2014, 12:59 PM   #1
davegt
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1983 CJ5 
 
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Ive tried searching this and did alot things I read. Cant seem to find the problem. Whenever im on a decline my jeep just wont staying idling, it just bogs down and dies. Runs fine when driving.. just seems as though the idles is directly related to gravity?? I have a 258 with Motorcraft 2150, new vac lines, new fuel fliter, checked timing, set idle screws, 2 even squirts out of the venturi, Vacuum gauge reads between 18 - 20 it does fluctuate between. Any thing I can look at?
Edit..declone..haha decline

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Unread 09-27-2014, 01:34 PM   #2
Mike Romain
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First thing that comes to mind is the float level.
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Unread 09-27-2014, 02:41 PM   #3
swatson454
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Quote:
Originally Posted by Mike Romain View Post
First thing that comes to mind is the float level.
I concur. The fuel is likely pushing forward and exposing the jets.


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Unread 09-28-2014, 10:23 AM   #4
davegt
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I checked the float. Set to specs. Maybe fuel pressure?
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Unread 09-28-2014, 10:35 AM   #5
Mike Romain
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Quote:
Originally Posted by davegt View Post
I checked the float. Set to specs. Maybe fuel pressure?
How old is the filter?
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86/00 CJ7 Laredo, 33x9.5 BFG AT's, 'glass nose to tail in '00, 'New' frame,wires and plumbing in '09. Carter BBD Carbed 4.0 HO in '10.
89 YJ Renegade. BBD Carbed 4.0 HO. Locked front and rear with 33x9.5 BFG AT's
Some Canadian Bush Jeep Runs and Build Photos: http://mikeromainjeeptrips.shutterfly.com (10 new albums added Sept 16/10)
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Unread 09-28-2014, 10:39 AM   #6
bulldawgburns
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The "declone" word in the title had me scared, I am still learning this while restoring mine... And thought that there was some new problem that I haven't read about yet!
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Unread 09-28-2014, 04:28 PM   #7
davegt
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Filter is brand new
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Unread 09-28-2014, 04:55 PM   #8
Matt1981CJ7
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Fuel tank venting properly?

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Unread 09-28-2014, 05:45 PM   #9
LumpyGrits
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Filter return line at the 12 o'clock position?
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Unread 09-28-2014, 06:25 PM   #10
davegt
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Filter is in the 12 pos.
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Unread 09-28-2014, 06:32 PM   #11
LumpyGrits
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Clarify this-'decline' as in back down the hill??
Is so-Lower you fuel level in the carb's bowel 1/8-3/16".
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Unread 09-29-2014, 06:04 AM   #12
davegt
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It only happens when I go down a hill. I have the float set to specs, but I think im going to play with it a bit. May need to hold more gas in the bowl.
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Unread 09-29-2014, 06:40 AM   #13
richclan
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i put the float @ 9/16 and put a float spring in mine.. couldnt be happier with it.
http://www.jeepforum.com/forum/f8/19...mbler-2537162/
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Unread 09-29-2014, 07:08 AM   #14
Mike Romain
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I think I would be checking the connections on the coil out. I have seen that harness shift on angles causing cut outs.
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86/00 CJ7 Laredo, 33x9.5 BFG AT's, 'glass nose to tail in '00, 'New' frame,wires and plumbing in '09. Carter BBD Carbed 4.0 HO in '10.
89 YJ Renegade. BBD Carbed 4.0 HO. Locked front and rear with 33x9.5 BFG AT's
Some Canadian Bush Jeep Runs and Build Photos: http://mikeromainjeeptrips.shutterfly.com (10 new albums added Sept 16/10)
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Unread 09-29-2014, 10:32 AM   #15
LumpyGrits
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Quote:
Originally Posted by davegt View Post
It only happens when I go down a hill. I have the float set to specs, but I think im going to play with it a bit. May need to hold more gas in the bowl.
Again-Going forward or backing down a hill??
Backing down, this is a common issue. Like I said-Set the float lower.
IF you do have it set correctly. You have PLENTY of fuel in the bowl. Probably, to much fuel.
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