| Popping noise/carb flooding SOLVED [message #264017] |
Sun, 12 October 2014 06:22  |
budworks521
Messages: 137
Registered: October 2013
Location: Grand Rapids MI 1974 Pain...
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Senior Member |
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Finally with all the help from the community and from Dick Paterson I determined the cause of my carb acting up and my hard starts when cold. I replaced the cap and rotor due to uneven wear inside the cap and that solved the hard starts and following some advice from a GMC publication about fuel pump pressure increasing due to a plugged cannister or vapor line I simply pulled the line off the carb and plugged the port. The GMC started right up and idled fine. The carb quit leaking gas out the top gasket and pump area and the flooding conditions that were causing the popping noise as the unspent fuel burned in the intake manifold disappeared. Overall, this was an eureka moment for me!! I intend to change the oil since some gas probably made its way into the crankcase. This debacle was solved from many trial and errors generated from you helpful folks and I am grateful. Terry in WV, Dick, and others!!
1974 Painted Desert
455 upper half rebuild
constant project inexperienced mechanic
Grand Rapids Mi
Always trying to learn
[Updated on: Sun, 12 October 2014 06:24] Report message to a moderator |
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