Maybe carb related issues? - JeepForum.com

 
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post #1 of 7 Old 03-03-2013, 07:02 PM Thread Starter
alp312
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Maybe carb related issues?

I'm having more issues with the I6 258 83 cj7 I just picked up(go figure). At first, the car wouldn't drive more then 10 feet with out shutting off. That was resolved by just letting it warm up and what not. Now today, I went to drive it again, and now it won't even stay idling more then 5 seconds before shutting off. I tried taking the filter and Venturi off and all that cleaned all the gunk out put it back on and this was happening. Any suggestions?

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post #2 of 7 Old 03-03-2013, 07:29 PM
86cj74.2L
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If their was gunk in the Venturi cluster its time to take the carb apart and clean everything.

It looks like the return port on the fuel filter is not at the 12 O' Clock position. It needs to.
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post #3 of 7 Old 03-03-2013, 07:39 PM Thread Starter
alp312
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Haha which is where? Sorry new to this.
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post #4 of 7 Old 03-04-2013, 08:35 AM
scrapman
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Time to do some reading. Start here: http://home.sprynet.com/~dale02/idle.htm

After you read that page, the table of contents has lots of other good information.
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post #5 of 7 Old 03-04-2013, 05:46 PM Thread Starter
alp312
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Thanks good info! Now is the port that needs to be at 12 the metal one running to the carb or the other rubber one
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post #6 of 7 Old 03-04-2013, 06:12 PM
86cj74.2L
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Center port to carb 12o clock port to line that goes to frame rail.
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post #7 of 7 Old 03-04-2013, 06:25 PM
BagusJeep
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take the top off the carb (very simple, you will have to unhook the metal rod linkages but apart from that a few screws) and have a look inside.

If the float bowl is full of crap you know you have a problem. Clean it up and then start the engine. You should see a steady trickle of fuel from the idle tubes into the venturi and a steady level of fuel in the float bowls.

If not break out the carb cleanere and try to get those idle tubes cleaned up. You may have to take the carb of and take more of it apart.

Before you put it back together as a minimum check the float levels with a ruler. Carbs are sensitive to this.

When the top is back on you need to look at the accelerator pump and metering needle settings. Go on the Internet and find the instructions.

When it is back up and running check for vacuum leaks all over the manifold area and hoese, your hoses look old and could do with replacement.

Finally adjust the curb idle and idle air screws until it runs smoth. It will not do so if the tubes are clogged, the floats are wrongly set or there are air leaks.

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1981 CJ7 258ci - Bagusjeep
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1981 J20 258ci - Gladys
1951 Willys CJ3A/MB/M38 - Little Willy
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