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78' CJ-7 using too much fuel after re-built carb. HELP


 
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Huck Finn
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Joined: 22 Dec 2005

PostPosted: Tue Jan 24, 2006 2:46 pm    Post subject: 78' CJ-7 using too much fuel after re-built carb. HELP Reply with quote

After re-building the carb several timeson my 78 CJ-7, V8 304, and having a qualified mech. check my work, it is still consuming approx 1 gallon for every mile. The carb is a Motorcraft 2150. I changed the throttle valve 2x, and the problem still exists. Has anyone ever experienced this before? Are there times when even a re-built carb won't do the trick and only a new (re-built) carb will work. Any help or suggestion is appreciated.
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Huck Finn
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Joined: 22 Dec 2005

PostPosted: Wed Jan 25, 2006 8:47 am    Post subject: Reply with quote

Sorry for the missinformation-I'm learning. Since we had been fighting an obstruction either in the fuel line or the tank itself, we bypassed everything with a jerry can. It turns out that the majority of fuel was not being burned but was returning to the tank via the fuel return.

Sorry to waste your time.

Anybody know of a good fuel system diagram for a 78 CJ-7?
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Huck Finn
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PostPosted: Tue Jan 31, 2006 10:17 am    Post subject: Reply with quote

CONCLUSION: we were using a jerry can to see if that changed anything. Turns out, fuel was been recycled back to main tank.
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