460 no start
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Senior User
Joined: Jun 2011
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460 no start
hi guys i have a 1986 ford f350 4x4 with a 460 engine and it wont start
it turns over good, it has spark, compression was 120 all the way around
and there is fuel at the carburetor when you move the linkage any help greatly appreciated thank you
it turns over good, it has spark, compression was 120 all the way around
and there is fuel at the carburetor when you move the linkage any help greatly appreciated thank you
Senior User
Joined: Jun 2010
Posts: 133
Likes: 0
From: North Dakota
Wow, could be 100 things.
How long has it been sitting not running? Original carb?
Does it have electric or mechanical fuel pumps? If electric, are they running?
Spark plug wires in the correct order?
Does it even try to start or just crank over?
How long has it been sitting not running? Original carb?
Does it have electric or mechanical fuel pumps? If electric, are they running?
Spark plug wires in the correct order?
Does it even try to start or just crank over?
Senior User
Joined: Jun 2010
Posts: 133
Likes: 0
From: North Dakota
well....... Sort of. Its not exactly THAT simple. He has all three of the above and it doesn't run.
Too much, not enough, or incorrect timing of any one of the three "components" above and you have no running engine.
pedant
Joined: Jan 2008
Posts: 23,576
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From: EXTREME southwest CT
....That's why I said if the plugs were dry the ignition could be out of time.
Obviously he has enough of an accelerator pump shot that the engine should pop, even if the jets are so clogged and it won't run.
If the plugs are clean try it on ether.
If that doesn't work there's definitely an ignition issue.
Obviously he has enough of an accelerator pump shot that the engine should pop, even if the jets are so clogged and it won't run.
If the plugs are clean try it on ether.
If that doesn't work there's definitely an ignition issue.
Posting Guru
Joined: Jan 2012
Posts: 1,410
Likes: 1
From: Dallas, GA
certainly sounds like ignition alright. heck you can dump fuel down the throat and It'll at least try to start.
What have you done lately to the engine? Have you messed with the coil, distributor, module? Anything? Replaced the dist. cap maybe?
Just having spark don't tell us if it's at the right time.
How did you determine you have spark?
What have you done lately to the engine? Have you messed with the coil, distributor, module? Anything? Replaced the dist. cap maybe?
Just having spark don't tell us if it's at the right time.
How did you determine you have spark?
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Posting Guru
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From: Dallas, GA
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