| 427 ProblemsJune 4 2006 at 11:45 AM | Bill (no login) | |
| Does this sound familiar to anyone? I have a 427 that runs like a champ while it's dry docked, and I can run it for 10 minutes at 4200 rpm on the lake, and then it misfires and quits as if it ran out of gas or had a major vapor lock. It wont restart until the engine cools down. The engine hadn't been run since 1999. I took advice from three different mechanics who had three different opinions and it still does the same thing. My interpretation is it acts as if it takes awhile to get up to temperature and once it does it cuts out. I thought possibly a water or a choke problem. I installed a new main water pump and ran it to no avail and was told it was the coil. I replaced the coil and at the same time I replaced the thermostat. When I ran it again it overheated missed and died again. Any thoughts?
This is what I have done in order:
1) Drained the fuel
2) Installed new fuel pump
3) Installed new impellar
4) Installed new fuel filter
5) Rebuilt the carb
6) Timed
7) Test drive (limped in on other engine)
8) Installed new water pump
9) Drained fuel
10) Installed new plugs
11) Installed new hoses
12) Checked points
13) Test drive (limped in on other engine)
14) Installed new coil
15) Installed new thermostat
16) Test drive (limped in on other engine)
17) Found this site
Any suggestions would be appreciated.
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