| Re: [GMCnet] anyone ever hear of fuel pump diaphrams breaking apart in fuel lines before carb [message #281452] |
Sat, 04 July 2015 16:59  |
Mike Kilroy
Messages: 80
Registered: July 2006
Location: Farmersville, OH (near D...
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How long does it run b4 stalling?
Is it upto temp yet?
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-------- Original message --------From: Lawrence Harrison Date:07/04/2015 5:52 PM (GMT-05:00) To: gmclist@temp.gmcnet.org Subject: [GMCnet] anyone ever hear of fuel pump diaphrams breaking apart in fuel lines before carb
The saga continues. I added 10 gallons on new gas and still can't keep the 455 running. excellent vac reading and then boom a stall. I noticed a small
papery type object in my container of gas that was filled by the pump when the line was off the carb. I was testing the fuel pump for delivery.
Anyways, not sure what to think. Sounds good until stall. I squirt a little gas in the carb and it wants to keep running. I wonder if my idle jets are
dirty! The carb is coming off again for the fourth time! Putting on an electric choke and see if a cleaning helps. Thanks for all the advice.
--
1974 Painted Desert
455 upper half rebuild
constant project inexperienced mechanic
Grand Rapids Mi
Always trying to learn
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Mike (AC8V) & Vickie Kilroy
'73 Canyon Land 26' sidebath
455/ceramic filled crossovers
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| Re: [GMCnet] anyone ever hear of fuel pump diaphrams breaking apart in fuel lines before carb [message #281514 is a reply to message #281452] |
Sun, 05 July 2015 17:24  |
budworks521
Messages: 137
Registered: October 2013
Location: Grand Rapids MI 1974 Pain...
Karma: 4
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I say 10 minutes and at full operating temp. I pulled the carb off and the intake has carbon buildup and the lower gasket seems like it is saturated quite abit with gas. I truly feel that my intake manifold is fine (cracks) since it still wants to run if yadd gas to the carb as it starts to stall. Now I am wondering if the excess carbon lining my intake could be a problem. It seems like it is running great until it stalls. Thanks
1974 Painted Desert
455 upper half rebuild
constant project inexperienced mechanic
Grand Rapids Mi
Always trying to learn
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