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Car Forum / Ford / Ford Mustang / July 2005

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Mustang -67 289 2V

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KillKenny - 11 Jul 2005 20:58 GMT
My Mustang don´t start when engine is hot.
Someone know why?
elaich - 11 Jul 2005 22:07 GMT
"KillKenny" <saab4fun@comhem.se> wrote in news:pbAAe.141852$dP1.495132
@newsc.telia.net:

> My Mustang don´t start when engine is hot.
> Someone know why?

How can anybody make a guess with such little information?

I know 2 things that will cause this. Really bad compression, and gasoline
boiling in the carb when engine is shut off. However, the latter will start
after cranking on it a bit.

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"This space for rent."

tudysmuck@yahoo.com - 11 Jul 2005 23:07 GMT
more info ???
what year  
whats it doing ? before and after ?
tell us in detail ???
Ritz - 12 Jul 2005 02:05 GMT
> "KillKenny" <saab4fun@comhem.se> wrote in news:pbAAe.141852$dP1.495132
> @newsc.telia.net:
[quoted text clipped - 7 lines]
> boiling in the carb when engine is shut off. However, the latter will start
> after cranking on it a bit.

Or sometimes just a bad starter (if it doesn't crank when it's hot).
Also, check to make sure the accelerator pump diaphrams aren't cracked
and leaking all over the place.

Cheers,
elaich - 12 Jul 2005 06:06 GMT
> Or sometimes just a bad starter (if it doesn't crank when it's hot).

Yeah. The OP didn't say whether the engine was turning over or not. Like I
said, need more info.

In line with your comment, if he has headers, he may be frying the starter
and it won't turn the motor over hot.

Signature

"This space for rent."

ZombyWoof - 12 Jul 2005 04:42 GMT
>My Mustang don´t start when engine is hot.
>Someone know why?

It's tired.  After all it is pushing 40.
--

Please Don't Steal - The Government Hates Competition

ZombyWoof
(take the dogs when replying via e-mail)
KillKenny - 12 Jul 2005 09:22 GMT
Starter works greate.
After 45 sek with the starter going it starts, and black smoke
from the exathuost.
Engine 289 2v
Year > -67
Engine is 100% original
Ritz - 12 Jul 2005 11:15 GMT
> Starter works greate.
> After 45 sek with the starter going it starts, and black smoke
> from the exathuost.
> Engine 289 2v
> Year > -67
> Engine is 100% original

It sounds like it's just time for a carburetor rebuild.

Have you checked:

cylinder compression
plugs
wires
fuel pressure
fuel filter

Once you get it running, does it run OK?

Cheers,
walt peifer - 12 Jul 2005 14:24 GMT
> Starter works greate.
> After 45 sek with the starter going it starts, and black smoke
> from the exathuost.
> Engine 289 2v
> Year > -67
> Engine is 100% original

also check coil for thermal breakdown. condensor should read 5 microfarrats.
and long pink wire in mail harness to the coil maybe frayed or broken
limiting voltages.
low voltage at coil and hence to spark plugs often will keep a acr running
but can't fire in the rich enviroment of a start up condition
David M - 13 Jul 2005 02:06 GMT
>> Starter works greate.
>> After 45 sek with the starter going it starts, and black smoke
[quoted text clipped - 4 lines]
>>
> also check coil for thermal breakdown. condensor should read 5 microfarrats.

That's 5 microfarads.

> and long pink wire in mail harness to the coil maybe frayed or broken
> limiting voltages.
> low voltage at coil and hence to spark plugs often will keep a acr running
> but can't fire in the rich enviroment of a start up condition

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David M  (dmacchiarolo)
http://home.triad.rr.com/redsled
T/S 53
sled351 Linux 2.4.18-14  has been up 22 days 15:18

Spike - 13 Jul 2005 06:00 GMT
ferrats.... ferrads..... I thought it was 5 ferret powered : ) J/K

>>> Starter works greate.
>>> After 45 sek with the starter going it starts, and black smoke
[quoted text clipped - 11 lines]
>> low voltage at coil and hence to spark plugs often will keep a acr running
>> but can't fire in the rich enviroment of a start up condition

Spike
1965 Ford Mustang fastback 2+2 A Code 289 C4 Trac-Lok
Vintage Burgundy w/Black Standard Interior; Vintage 40
16" rims w/BF Goodrich Comp T/A gForce Radial
225/50ZR16 KDWS skins; surround sound audio-video.

"When the time comes to lay down my life for my country,
I do not cower from this responsibility. I welcome it."
                                -JFK Inaugural Address
elaich - 12 Jul 2005 16:14 GMT
"KillKenny" <saab4fun@comhem.se> wrote in news:b5LAe.141890$dP1.494844
@newsc.telia.net:

> Starter works greate.
> After 45 sek with the starter going it starts, and black smoke
> from the exathuost.
> Engine 289 2v
> Year > -67
> Engine is 100% original

It's flooding. Gas in the carb bowl is boiling and spilling down the carb
throat. The cure is a carb spacer, preferably a phenolic one that won't
transfer as much heat. Also, you can get a very thick (about a quarter
inch) carb gasket/spacer. Easy fix.

Signature

"This space for rent."

Cory Dunkle - 12 Jul 2005 16:26 GMT
> Starter works greate.
> After 45 sek with the starter going it starts, and black smoke
> from the exathuost.
> Engine 289 2v
> Year > -67
> Engine is 100% original

Sounds like you have fuel leaking down the carb after turning it off,
creating a overly rich condition which will not support combustion. Drive
the car until the engine and engine compartment are at normal hot
temperature such as when the car won't start easily. Turn the engine off,
remove the air cleaner and look down the carb. _Do not_ touch the throttle.
Just watch (a flashlight may help) and look for any fuel dripping from teh
boosters (those round things hanging out into the venturi's) and also for
the throttle blades getting wet.

What you should do is rebuild teh carb. You ahve an Autolite 2100, which is
about the easiest carburetor in the world to rebuild. Your problem is likely
to be a sunken float/incorrect float level, bad needle & seat, or a bad
power valve/gasket. Either way, you'd be best off rebuilding it. Kits are
cheap and I'm sure after 40 years it could use it.

In the mean time, when you go to start it hot try holding the gas peadl to
the floor when you crank it, let go when it starts. This is how you start a
carbureted vehicle when it is flooded, as it allows as much fresh air in as
possible.

   Cory
KillKenny - 13 Jul 2005 09:34 GMT
Thanks!
It was fuel leaking down the carb.
Think it was incorrect float level, will
check that out!

Pictures on my car and some more  =)
http://www.saab4fun.com/mustang06/index.html
Hairy - 15 Jul 2005 04:17 GMT
> Thanks!
> It was fuel leaking down the carb.
[quoted text clipped - 3 lines]
> Pictures on my car and some more  =)
> http://www.saab4fun.com/mustang06/index.html

Very nice car!
Me - 12 Jul 2005 22:41 GMT
In addition to all of the above information, you probably have a power valve
leaking. The power valve is the mixture enrichment device that is controlled
by engine vacuum. It bypasses the main jets at heavy load and richens the
fuel mixture. They are famous for leaking.
I don't know if you can still buy them from Ford, but you might want to get
one (Be sure it has a new gasket also) first. Next, Take the carb off, turn
it over (Hold it away so you don't get gas all over yourself) On the bottom
of the carb is a cover approximately 1" square. with four screws. Take them
off and remove the cover. If there is gas in this cover, you have found your
problem.  You should now have what looks like a large hex nut with a hole in
the center. Take a 1" wrench and remove it. Replace with a new valve and
gasket, do not over tighten. replace the cover and re-install the carb.
Good Luck
Bill

> Starter works greate.
> After 45 sek with the starter going it starts, and black smoke
> from the exathuost.
> Engine 289 2v
> Year > -67
> Engine is 100% original
David M - 13 Jul 2005 02:04 GMT
> In addition to all of the above information, you probably have a power valve
> leaking. The power valve is the mixture enrichment device that is controlled
[quoted text clipped - 5 lines]
> of the carb is a cover approximately 1" square. with four screws. Take them
> off and remove the cover.

I think you're describing the accelerator pump.  The power
valve is in the metering block.

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David M  (dmacchiarolo)
http://home.triad.rr.com/redsled
T/S 53
sled351 Linux 2.4.18-14  has been up 22 days 15:16

elaich - 13 Jul 2005 02:16 GMT
David M <NOSPAM@nospam.com> wrote in news:pan.2005.07.13.01.04.52.177882
@sled351:

> I think you're describing the accelerator pump.  The power
> valve is in the metering block.

That's in a Holley, not in an Autolite/Motorcraft. I've never known a power
valve to blow out in the latter.

Signature

"This space for rent."

David M - 13 Jul 2005 23:45 GMT
> David M <NOSPAM@nospam.com> wrote in news:pan.2005.07.13.01.04.52.177882
> @sled351:
[quoted text clipped - 4 lines]
> That's in a Holley, not in an Autolite/Motorcraft. I've never known a power
> valve to blow out in the latter.

Yep... right... missed that in the OP.  

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David M  (dmacchiarolo)
http://home.triad.rr.com/redsled
T/S 53
sled351 Linux 2.4.18-14  has been up 23 days 12:58

Me - 14 Jul 2005 00:18 GMT
I have never seen one blow either. I have seen them leak. Whether this is
from around the base gasket on the power valve, or through the diaphragm
inside the valve I don't know. The first clue is when you remove the cover
and it's full of gas.

> David M <NOSPAM@nospam.com> wrote in news:pan.2005.07.13.01.04.52.177882
> @sled351:
[quoted text clipped - 5 lines]
> power
> valve to blow out in the latter.
Spike - 12 Jul 2005 23:46 GMT
For about $2500 you can do a complete conversion to EFI.

>My Mustang don´t start when engine is hot.
>Someone know why?

Spike
1965 Ford Mustang fastback 2+2 A Code 289 C4 Trac-Lok
Vintage Burgundy w/Black Standard Interior; Vintage 40
16" rims w/BF Goodrich Comp T/A gForce Radial
225/50ZR16 KDWS skins; surround sound audio-video.

"When the time comes to lay down my life for my country,
I do not cower from this responsibility. I welcome it."
                                -JFK Inaugural Address
KillKenny - 13 Jul 2005 18:47 GMT
Thanks!
It was fuel leaking down the carb.
Think it was incorrect float level, will
check that out!

Pictures on my car and some more  =)
http://www.saab4fun.com/mustang06/index.html
 
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