Originally Posted by fattybourgeois
oh yeah i have an 87 wrangler that wont run.problem..it starts,runs great at idle smooth acceleration,but it only runs for about 1 minute than dies.then it will be a ***** to start.let it sit and it will do the same thing.i have a webber carb.,i also did the "nutter".I used this forum for vacume line routing.the jeep has sat for 2 years, filled with fresh gas with a can of heat.fuel is pumping..please help im ready to push it into the harbor.thanks.
The only reason I am saying the fuel pump, is what you are describing is the same thing I had over the weekend with a bad fuel pump. The pump was working, kinda of, and would pump a little fuel up there, the engine would run for less then a min, die out, then you would have to let sit there until the fuel pump slowly bleed enough fuel into the carb. How I went off to the fuel pump was the fact that when it would not start, I could pour a little gasoline into the carb throat, and it would start up.
Trying breaking your intake fuel line before your fuel pump, Take the line and put it into a large container, ( I used a hard plastic 20oz big gulp cup) Crank the engine. In about 15 seconds that cup should be empty. What mine would do is pump the cup down until the fuel filter and output lines were full, then very slowly pump down the rest. THe pressure it was putting out just was not enough to get through the filter and into the carb.
Now of course, the very first thing you do, is the basics, break the fuel line at the carb, any fuel at all?, Check your spark, normally easiest at a removed spark plug. Make sure you do the these two, then change out your fuel filter (cheap at 7.00). Then check your fuel pump as described above
Hope this helps