CJ Bogs Down - JeepForum.com
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post #1 of 4 Old 04-14-2011, 08:20 PM Thread Starter
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1985 CJ7 
Join Date: Apr 2011
Location: Fairfield
Posts: 2
CJ Bogs Down

I had my 85 CJ7 (4.2 258) out today and it ran fine. I had recently replaced the water pump and fuel filter. A few times in the past bog down when going up steep hills. It ran perfect all day, but after a bumpy ride in the mountains, it started to bog down. It got really bad when I went back on the highway, going from 2nd to 3rd would feel like it was suffocating. I sprayed out the Weber carburetor, but no luck. This was probably the longest that I have ran her in months, the previous owner had rebuilt the engine and it only has 5000 miles.

Agggg is offline  
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post #2 of 4 Old 04-14-2011, 08:38 PM
Web Wheeler
1983 CJ8 
Join Date: May 2008
Location: N.E. Alabama
Posts: 2,649
Welcome to JF.

I have a Weber, actually several. Can you identify which one(s) I have?

Reads as though you are experiencing bowl over fill, or in need of a float adjustment.. if we knew which Weber you have mounted I'm sure that sound suggestions would follow.
mcmud is offline  
post #3 of 4 Old 04-14-2011, 09:00 PM
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1981 CJ5 
Join Date: Mar 2011
Location: 954
Posts: 110
i bet you got a hole in and fuel line or its dryed out and cracked and sucking air
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post #4 of 4 Old 04-16-2011, 01:36 AM Thread Starter
Registered User
1985 CJ7 
Join Date: Apr 2011
Location: Fairfield
Posts: 2
I couldn't find a model number on the carb, but I think we may have found the problem. The fuel lines do look bad, I just picked up some new hose. A friend messed with it for a while and thinks it is the vacuum advance. I am going to repair/replace that line and see what happens.

Thanks for the help.
Agggg is offline  

bog , cj , fuel

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