Join Date: Oct 1999
Location: Monument, CO, USA
I finally got my 69 Z28 out yesterday after it had been sitting in the garage for the last 6 months. It started well and ran well for about the first 45 minutes but then started to stall under load. I'd be accelerating and the engine would die. I'd then have to sit for a few minutes (which isn't all that fun when your stuck on a busy highway) before it would start up again. I'd have to crank it for about 30 seconds before it would start but it would run rough. I finally got to where I was going and had it parkcd for a few hours. My return trip was much the same. It started and ran fine after sitting but started acting up after about 20 miles of driving.
Now I'm trying to figure out what to fix before I take it out again. The carb was recently rebuilt so I am suspecting a problem there. The symptoms appear to be a lack of gas when the engine gets hot. Is it the carb? It is the fuel pump? I'm not sure. I'm looking for ideas on how to troubleshoot this.