problems starting
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problems starting
I have a 77 f-150 4x4 with a 351M. After my truck gets hot it is very hard to start. It's like the starter does not have the power to crank it over. When the engine is cold it can crank all day. If i leave it sit for about a half an hour or so it's will usally start ok. I put on a new starter but i still have the same problem. I have headers so i built a heatsheild for the starter thinking it was getting to hot but i still have the same problem. Please help.
Chas
Chas
Postmaster
Joined: Apr 2000
Posts: 2,838
Likes: 6
From: SD
problems starting
[font color=red size=3]There are a couple things that can cause this - flooding or starter circuit.
When it starts hard, does it act flooded? Do you have to hold that gas down to get it to start? If so, then that carb is getting too hot and perculating (flooding it), my 390 did this and I had to get a plastic 1" carb spacer to keep the carb cooler - it worked.
If your sure it's not flooding, then it must be in the starter circuit. My starter recently had to be replaced for the same reason, slow starts when hot. Look over the cables. Are the cables in good condition? Any cracks, corrosion, loose connections, exposed wire? Good clean connections on battery, good ground wire with clean connections. Any one of these things would make it start hard, look it over and let us know what you find.
It is also possible that you got a bad starter, it happens more than you think.
Marty
"Cleverly Disguised as a Resposible Adult"[/font]
When it starts hard, does it act flooded? Do you have to hold that gas down to get it to start? If so, then that carb is getting too hot and perculating (flooding it), my 390 did this and I had to get a plastic 1" carb spacer to keep the carb cooler - it worked.
If your sure it's not flooding, then it must be in the starter circuit. My starter recently had to be replaced for the same reason, slow starts when hot. Look over the cables. Are the cables in good condition? Any cracks, corrosion, loose connections, exposed wire? Good clean connections on battery, good ground wire with clean connections. Any one of these things would make it start hard, look it over and let us know what you find.
It is also possible that you got a bad starter, it happens more than you think.
Marty
"Cleverly Disguised as a Resposible Adult"[/font]
Posting Guru
Joined: Jun 1999
Posts: 2,415
Likes: 3
From: Comox Valley, Canada
problems starting
Could be bad wiring in the starter circuit, power or ground. Check the power feed wire for corrosion and the ground wire to the engine block.
Also could be the too much timing advance. Check both the mechanical advance weights as well as the vacuum advance, make sure they aren't stuck. Also could be the static timing set too much advance.
Good luck.
Sparky
>I have a 77 f-150 4x4
>with a 351M. After
>my truck gets hot it
>is very hard to start.
> It's like the starter
>does not have the power
>to crank it over.
>When the engine is cold
>it can crank all day.
> If i leave it
>sit for about a half
>an hour or so it's
>will usally start ok.
>I put on a new
>starter but i still have
>the same problem.
> I have headers so
>i built a heatsheild for
>the starter thinking it was
>getting to hot but i
>still have the same problem.
> Please help.
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> Chas
Also could be the too much timing advance. Check both the mechanical advance weights as well as the vacuum advance, make sure they aren't stuck. Also could be the static timing set too much advance.
Good luck.
Sparky
>I have a 77 f-150 4x4
>with a 351M. After
>my truck gets hot it
>is very hard to start.
> It's like the starter
>does not have the power
>to crank it over.
>When the engine is cold
>it can crank all day.
> If i leave it
>sit for about a half
>an hour or so it's
>will usally start ok.
>I put on a new
>starter but i still have
>the same problem.
> I have headers so
>i built a heatsheild for
>the starter thinking it was
>getting to hot but i
>still have the same problem.
> Please help.
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> Chas
