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Re-starting Issues. Help Requested.; Difficulty restarting jeep after warmup.
Topic Started: Aug 18 2011, 04:54 PM (803 Views)
North Carolina Nick
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I have a 1963 3B with the original motor, starter, generator etc.... I have noticed when I take it for a ride to run to the errands, it is difficult to start after each stop. It is almost as though it is starving for fuel. It turns over several times prior to restarting. On the initial start up, it will fire up right away. Does anyone have any idea what is going on and how to fix it.
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Gunslinger
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Just a thought, when it warms up you may get some expansion at a gasket that will start leaking air, this sounds like its running lean after it warms up. I'd check the gasket at the carb to manifold, I had to replace one because it got hard and leaked air.

Todd
1950 CJ 3a named Triple X, 1997 Cherokee Sport, Colt 1911 National match
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jeepdan
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Sounds very much like the problem that I am having during this hot summer with my 64 CJ-3B.
It starts right up cold and runs great until it is shut off. Unfortunately, I haven't had the time to drive it or trouble shoot lately :angry:
Dan Walton Jr. Wheeling, WV

1964 U.S. Army CJ3B ( pride and joy)
1967 Kaiser Jeep M715 (my newest pride and joy)
2016 Jeep Wrangler JKU- Black Bear Edition (daily driver)
91 Grand Wagoneer (in storage)
Two 56 Willys pickups (one, restoration started, never finished)
1966 M416 1/4 Ton trailer
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Bob
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Bob
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Could be something with the condenser too
Bob
1953 CJ3B
1965(?) CJ5
1949 Jeepster
1947 Cj2A
2004 Kubota l3400
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oldtime
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I suggest that you first determine if it fuel or fire related.
If it does not start back up after several cranks pull a spark plug out.
See if it shows any indication of being wet or is it bone dry ?
If its bone dry try squirting a little gasoline into the cylinder and it should fire right up.
That condition will definately indicate a fuel issue.
Currently building my final F-134 powered 3B .
Rock Crawler using factory parts from the Willys Motors era (1953-1963)

http://s4.zetaboards.com/CJ3B_Bulletin_Board/topic/30228766/1/#new
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jyotin
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One thing more to think about --- could it be flooded? A problematic carburetor could cause fuel to dump into the manifold after it is turned off.

If simply letting the jeep sit for a while is all it takes to re-start, then flooding could be a problem.

You should be able to check it out by removing a plug when it is in the "non-start" mode. If the plug is wet and has a gasoline smell, then flooding is definitely a "person of interest" in the problem.

Is there a fuel smell about the jeep after running it a while and turning it off?

You might also look at the tailpipe -- if it has a lot of black soot on the tip then that, too would be an indication of the jeep running rich.

How 'bout your MPG? Has that changed, or is it rather poor?

Black smoke from the exhaust?

Does the jeep have a Solex carb?

j
It's just my luck that something good is going to happen to me today.
54 - 3B - down on the farm
67 - cj6 - former state of Alabama vehicle
?? - cj5 T98a - made from spare parts - Ford tractor blue
?? - cj5 T98a - made from spare parts - Jeep green
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Frank
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North Carolina Nick,Aug 18 2011
04:54 PM
I have a 1963 3B with the original motor, starter, generator etc.... I have noticed when I take it for a ride to run to the errands, it is difficult to start after each stop. It is almost as though it is starving for fuel. It turns over several times prior to restarting. On the initial start up, it will fire up right away. Does anyone have any idea what is going on and how to fix it.

The eng may just be plain worn out,

When its cold has more compression, and lights off quicker, When warmed up things expand and doesnt light off as easy,

Try different methods when cranking over hot, some Rigs like Wide open throttle need more air,

Heck if its got a choke, choke it a bit and see if it likes that,

But she may be just plain tiered ,

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North Carolina Nick
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Hey Jyotin,

There is some black smoke on start up. I will check to see it there is gas on the plugs next week. Where would I find the name of the carb?

Hey Frank,

God I hope you are wrong. I don't even know where to start on an engine rebuild.

I will wait to here from you Jyotin.

Thanks
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jyotin
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There are pictures on this site of YF carburetors on this site. Take a good look at them and compare to what you have. Typically if you remove the air cleaner tube from the top of the carb there is a sort of "V" shaped ring around at the top of the carb -- this is what the air cleaner tube clamps to when attached.

If you have a Solex carb then it will look different as compared to the YF. I'm sure that there are pictures of a Solex on this site as well.

I'm not a fan of Solex, but there are people who swear by them (as opposed to swear AT them). If you have a Solex on the jeep then the Solex people could probably chip in and lend their advice.

IF it is flooding then you can work around it by not pressing on the accelerator pedal at all when starting the jeep warm. Once it starts you can depress the accelerator, but not until it is running. I've got one that does that occasionally so I never use the accelerator pedal at all when starting.

One of these days I'll get around to rebuilding the carb, but as long as I use my "field tested" starting process it doesn't cause me any problems.

Be sure to keep the battery charged.

j
It's just my luck that something good is going to happen to me today.
54 - 3B - down on the farm
67 - cj6 - former state of Alabama vehicle
?? - cj5 T98a - made from spare parts - Ford tractor blue
?? - cj5 T98a - made from spare parts - Jeep green
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For CJ-5 and Dauntless V6 postings, see the Early CJ-5 Bulletin Board.
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