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Dave Mattlin
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 Posted: Mon Oct 01, 2012 10:57 am Post subject: 600 ford stalling |
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This message is a reply to an archived post by Charlie G. 377LM5C on May 01, 2011 at 08:20:24.
The original subject was "600 ford stalling".
I have the same problem and I'm curious to find out what your solution was. My 640 starts, runs for 30-45 seconds then quits and won't restart. I've cleaned and rebuilt carb and fuel lines, replaced coil, replaced condensor, replace plugs. I have spark after it dies and won't restart. Any help would greatly be appreciated.
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JMOR
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| Posted: Mon Oct 01, 2012 11:05 am Post subject: Re: 600 ford stalling |
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| Dave Mattlin wrote: | (quoted from post at 14:57:07 10/01/12) This message is a reply to an archived post by Charlie G. 377LM5C on May 01, 2011 at 08:20:24.
The original subject was "600 ford stalling".
I have the same problem and I'm curious to find out what your solution was. My 640 starts, runs for 30-45 seconds then quits and won't restart. I've cleaned and rebuilt carb and fuel lines, replaced coil, replaced condensor, replace plugs. I have spark after it dies and won't restart. Any help would greatly be appreciated. |
Fuel still flow out carb drain plug, immediately after it dies at a rate and duration to fill a pint bottle in under 2 minutes??
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Dave Mattlin
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| Posted: Mon Oct 01, 2012 11:11 am Post subject: Re: 600 ford stalling |
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Will try this evening, if I do not have that amount of flow what would be causing the issue?
Thanks for the help.
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JMOR
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| Posted: Mon Oct 01, 2012 11:26 am Post subject: Re: 600 ford stalling |
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| Dave Mattlin wrote: | (quoted from post at 15:11:50 10/01/12) Will try this evening, if I do not have that amount of flow what would be causing the issue?
Thanks for the help. |
You said you had checked the lines & carb, but didn't mention the sediment bowl or the tank valve.....both have very small passages & I have found the valve passages completely blocked by bits of grass, seeds, rust and even insect parts.
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Dave Mattlin
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| Posted: Mon Oct 01, 2012 11:40 am Post subject: Re: 600 ford stalling |
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Replaced fuel valve, cleaned tank and sediment bowl. I'm lost?
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souNdguy
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| Posted: Mon Oct 01, 2012 11:41 am Post subject: Re: 600 ford stalling |
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at point of stall.. if you have spark.. look at fuel.
a drip or dribble of fuel is not good enough
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Dave Mattlin
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| Posted: Mon Oct 01, 2012 11:45 am Post subject: Re: 600 ford stalling |
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At time of stall, I loosened sediment bowl and it pours out with seemingly no restriction.
Thanks for the reply.
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souNdguy
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| Posted: Mon Oct 01, 2012 11:49 am Post subject: Re: 600 ford stalling |
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what's it do under carb bowl.. that's what you need to see.. not sediment bowl.
also need to know spark at point of stall...
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Dave Mattlin
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| Posted: Mon Oct 01, 2012 11:52 am Post subject: Re: 600 ford stalling |
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Yes I have spark at time of stall, have not checked flow at bottom of carb. If the flow is low what could be the cause? Thanks again.
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JMOR
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| Posted: Mon Oct 01, 2012 11:57 am Post subject: Re: 600 ford stalling |
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| Dave Mattlin wrote: | | (quoted from post at 15:40:32 10/01/12) Replaced fuel valve, cleaned tank and sediment bowl. I'm lost? |
Keep checking, because IF & I emphasize IF, you have fuel & spark and it runs sometime but not at other times, that spark & or fuel is going away at those "don't run" times & you just haven't found it yet. Other things that cause engines to not run are loss of compression & valve & ignition timing and those are very, very unlikely to go wrong & recover on their own.
"At time of stall, I loosened sediment bowl and it pours out with seemingly no restriction.
Thanks for the reply."
If you read my suggestion, you noticed that I did not say to check sediment bowl flow at time of stall..........what I said was to open the carb bowl drain plug. This is an all-the-way, tank thru everything including carb check....not a half way measure. Further more a 10 second flow at this point still means nothing! Will it fill a pint bottle in less than 2 minutes??????? And I don't mean 3 or 4 minutes after the stall....I mean right now at stall.
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Dave Mattlin
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| Posted: Mon Oct 01, 2012 12:59 pm Post subject: Re: 600 ford stalling |
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I read your suggestion, thank you. Where should I look if I do not have the proper flow at the carb?
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JMOR
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| Posted: Mon Oct 01, 2012 1:10 pm Post subject: Re: 600 ford stalling |
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| Dave Mattlin wrote: | | (quoted from post at 16:59:06 10/01/12) I read your suggestion, thank you. Where should I look if I do not have the proper flow at the carb? |
You just keep looking further down stream from the point that you last found good flow. If you took glass bowl off & had good flow there, then down stream would include the output passage of the sediment bowl assy, including the hole in the hollow bolt mounting it, the inlet passages of cab from hollow bolt , to & through the float needle/seat assy.
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souNdguy
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| Posted: Tue Oct 02, 2012 5:17 am Post subject: Re: 600 ford stalling |
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yes, for sure
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Dave Mattlin
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| Posted: Tue Oct 02, 2012 4:09 pm Post subject: Re: 600 ford stalling |
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Sound guy, I opened the drain plug at the bottom of carb at time of stall, drip...drip.....drip. Any thoughts of what the culpret might be? The ports from the sediment bowl to carb are clear. third time for carb cleaning????????
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Sean in PA
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Location: Southeast PA
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| Posted: Tue Oct 02, 2012 4:11 pm Post subject: Re: 600 ford stalling |
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My guess would be the needle valve is sticking closed. Try tapping the bowl of the carb with the handle of a screwdriver the next time it happens to see if it makes it run properly for a while.
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