still wont start
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Senior User
Joined: Oct 2007
Posts: 386
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From: Whitestown, IN
still wont start
i have a 83 f250 with a 460 and a c6. i have fuel and spark. i have examined all the vacuum lines and cant find any brittle, cracked or loose vacuum lines. the truck cranks and cranks and cranks but doesnt start ??????
Thread Starter
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Senior User
Joined: Oct 2007
Posts: 386
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From: Whitestown, IN
good spark at the plugs, when i changed the plugs yesterday they had fuel on them and i believe the compression is good, i had the truck running last saturday or sunday by spraying starting fluid in the carb, i do have fuel spray in the carb...
what does fuel on the plugs mean, what would it do? just foul the plugs?
what does fuel on the plugs mean, what would it do? just foul the plugs?
Senior User
Joined: Dec 2007
Posts: 104
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Could be.
If the fuel is on the plugs and the plugs spark when out for testing and compression is good it has to fire.
It may not run constantly or run right but it has to fire.
Fuel
Spark
Compression
These three will always explode.
If the fuel is on the plugs and the plugs spark when out for testing and compression is good it has to fire.
It may not run constantly or run right but it has to fire.
Fuel
Spark
Compression
These three will always explode.
Posting Guru
Joined: Mar 2007
Posts: 1,757
Likes: 2
From: Florida
How's the timing look on her?Sounds like it could be out quite a bit.....check it when you check the compression...cause like he said.....fuel air spark and compression equals boom...Luck
JR
JR
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From: Virginia
If the plugs are fouled with fuel, it will not fire. You will need to take them out and clean them up, or get new ones.
Then you need to figure out why all the fuel is going down in the engine. If you look down the carb after cranking it, and you see fuel dripping off the boosters down into the engine, then the float is stuck in the carb, and the fuel bowel is overflowing into the engine and flooding it. Probably a piece of dirt or rust sticking the float valve open. That's a classic problem when working on an old truck with rusty fuel tanks.
Then you need to figure out why all the fuel is going down in the engine. If you look down the carb after cranking it, and you see fuel dripping off the boosters down into the engine, then the float is stuck in the carb, and the fuel bowel is overflowing into the engine and flooding it. Probably a piece of dirt or rust sticking the float valve open. That's a classic problem when working on an old truck with rusty fuel tanks.
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Thread Starter
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Senior User
Joined: Oct 2007
Posts: 386
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From: Whitestown, IN
putting a carb on tomorrow... i have a fuel, spark and compression so, i am throwing on a holley 4160 to replace this 4180... what kinda problems do u think ill have?? same ones>?