Problem: CJ-7 sat for years, started up, then died after about a mile.
background: about 10 years ago I bought a pile of parts that somewhat resembled a jeep. In that pile was a hard top and hard doors, so I figured it was a good place to start. I spent the first few years moving it towards running condition, including:
*new seats & dash with new gauges (no original jeep gauges left)
*removed fuel tank and had it cleaned and the inside recoated
*rebuilt crate motor from mexico (4-151)
*new electric fan
*rebuilt carb (purchased, not self-rebuilt)
*new distributor cap/rotor/wires/plugs
at this point, it ran decently but was still not registered so I didn't drive it. The last (and longest) trip was about 15 miles from a shop to my home, and it ran fine. There it sat (garaged) for a good 6-7 years until I realized that I really want to drive this jeep every day. So I pulled it out, replaced the battery and tried to start it, but was getting no fuel to the carb. Five fuel pumps later, and it fired right up. At the same time, I also added an inline filter between the fuel pump and the carb. This engine seemed to only come with a filter inside the tank and one inside the carb inlet. I figured one more wouldn't hurt.
yay! Off for a test drive around the neighborhood. All is well for about 1/4 mile, then I feel it running rougher. Uhoh, tried to make it back home, but the first small hill I came to was a no go. It just felt as if it was getting no gas and died. I tried to restart, and I could feel it almost catching but not quite. It's got another issue in that after about 5 attempts to start, the starter stops responding until it cools down, so I got a tow strap and dragged it back home.
this weekend, i'm going to get a new starter and try to diagnose it. I have a decent working knowledge of auto repair, but I would love to hear suggestions from anyone who's more familiar with jeeps.
i think that because it ran fine when I parked it, it's unlikely to be a problem with timing.
the fact that it ran for a bit could mean it's only a problem when the engine warms up.
could be old fuel? The exhaust did smell really bad.
could the old fuel have caused a problem inside the carb? Sticking floats, etc? If so, why did it run better before it warmed up?
thanks in advance for any help!
Tuesday, April 9th, 2013 AT 6:04 PM