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Fuel pump kaput...

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Mail From: David J Harr (email redacted)

I am getting ready to go to LA this weekend to spend Easter with my
parents and my daughters (who I managed to pry out of the clutches
of my ex-wife for a weekend). As I am running some last minute errands
before heading out onto the road, the car just dies. Some
experimentation reveals that there is no gas coming from the fuel
pump to the carburetor ('66 Mustang, 4V 289 V8). "No problem", says
I, "I have been thinking about replacing it with a high flow pump
anyway." So I scoot down to the local store, and pick up a high flow
(125 gallons per hour) Mallory mechanical fuel pump. Spent all evening
Friday and a good part of Saturday tring to get the inlet to clear the
damned oil filter. Finally got it all hooked up.

Said to myself "Self, I don't want to button everything back up just
to discover I have made a mistake and it is actually the cam eccentric
is causing the trouble..."

So I left the carburetor unhooked and turned the engine over, hoping to
see fuel come spurting out of the outlet. No such luck. "Maybe it needs
to be primed." So I sucked gasoline all the way through the system until
it was coming out the other side. Turned it over again. Still no fuel
flow.

So now I'm feeling like a schmuck because I have spent all this time
and energy (and missed seeing my girls!) chasing the wrong problem.
My question is this:

Short of taking off the timing cover, is there a way to ascertain if
cam eccentric is actually driving the fuel pump? I _REALLY_ don't
want to have to take off all the stuff (not to mention draining the
radiator, removing the water pump, extracting the harmonic balancer
UGGGHH) if I can possibly help it. Furthermore, is there anything else
that could be causing the flow failure? I seriously doubt that the
line from the gas tank is blocked because it was not very much work
for me to suck the gas up through the fuel line, and once I had it
flowing, I was able to flow copious amounts of gasoline oput onto
the asphalt just by using an improvised pump made from a Windex spray
bottle top.

Anyway, thanks for the help.


David



David J Harr
Entropy Introduction Engineer

IGNORE ABOVE RETURN ADDRESS! IT IS BOGUS! REPLY TO:
(email redacted)

'66 Mustang GT (Redline: ~7000 RPM)
'86 VFR750F (Redline: ~11000 RPM)
'93 NC30 (Redline: ~15500 RPM)
(I want the NC30 redline on my Mustang's 289...)

(Tick answers the door and sees two men in suits there)
Tick: I'm sorry, but we don't allow door-to-door salesmen in
this building.
First Man: Tick, you don't understand, we're from the _GOVERNMENT_!
Tick: That's all right. We have all the government we want. I
don't think we're interested in buying any more.





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Mail From: David Stone (email redacted)

Hi Mike,

You wrote:

Snip


>If all this checks OK, then you need to make sure that you installed the
>fuel pump so the fuel pump arm is on the under side of the eccentric.
>Since the eccentric is mounted so that it acts like a pump (i.e. not
>centered), it is easy to get the arm on top if the eccentric is in the down
>position.

I got caught out when I replaced my fuel pump last year. The pump
would not suck, (Sealed Carter) as I confirmed this by pumping it by
hand with one end in a container full of fuel. So I ordered a new
Carter and proceeded to fit it, still it would not suck any fuel
until I re-installed it under the eccentric and Bingo! it worked.

The chance is that you have done the same thing.

Dave.




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Mail From: (email redacted) (email redacted)

David,

The first thing I would check is the timing chain to see if it has failed.
To do this, just remove the dist. cap and see if the rotor turns when the
engine is cranked over. Since the cam eccentric is run off of the top gear,
this is the most likely cause of a cam eccentric to stop turning. If the
timing chain checks OK, then pull the pump and place a small, but long,
screwdriver through the hole where the fuel pump arm enters the timing
chain cover. You can use a mirror to guide the screw driver until it
touches the cam eccentric, or do it by feel. Next, just barely bump the
motor once or twice (helps to use a remote starter, or someone behind the
key that is used to quick key turns!) and you should feel the movement of
the eccentric since it is mounted off set. You can use the fuel pump
itself, instead of the screw driver if you like, just don't bolt it down
and watch and feel for it to rock with the cam eccentric.

If all this checks OK, then you need to make sure that you installed the
fuel pump so the fuel pump arm is on the under side of the eccentric.
Since the eccentric is mounted so that it acts like a pump (i.e. not
centered), it is easy to get the arm on top if the eccentric is in the down
position. If this is the case, using the screw driver or fuel pump arm
method mentioned above, align the eccentric so that it is in the up
position and the arm sould slide in on the under side of the eccentric
without any problems. In this position, you should be able to mount the
pump w/o having to apply very much pressure on the pump to get the two bolt
holes to line up.

I hope that I have made myself clear. This is hard to explain in plain
text. If you have a questions, let me know.



Mike Bradburn
Compaq Computer Corporation
20555 SH 249 MS090803
Houston, TX 77070
emailsad smileyemail redacted)
-------------
Original Text
From: David J Harr <(email redacted)>, on 3/31/97 2:20 PM:
I am getting ready to go to LA this weekend to spend Easter with my
parents and my daughters (who I managed to pry out of the clutches
of my ex-wife for a weekend). As I am running some last minute errands
before heading out onto the road, the car just dies. Some
experimentation reveals that there is no gas coming from the fuel
pump to the carburetor ('66 Mustang, 4V 289 V8). "No problem", says
I, "I have been thinking about replacing it with a high flow pump
anyway." So I scoot down to the local store, and pick up a high flow
(125 gallons per hour) Mallory mechanical fuel pump. Spent all evening
Friday and a good part of Saturday tring to get the inlet to clear the
damned oil filter. Finally got it all hooked up.

Said to myself "Self, I don't want to button everything back up just
to discover I have made a mistake and it is actually the cam eccentric
is causing the trouble..."

So I left the carburetor unhooked and turned the engine over, hoping to
see fuel come spurting out of the outlet. No such luck. "Maybe it needs
to be primed." So I sucked gasoline all the way through the system until
it was coming out the other side. Turned it over again. Still no fuel
flow.

So now I'm feeling like a schmuck because I have spent all this time
and energy (and missed seeing my girls!) chasing the wrong problem.
My question is this:

Short of taking off the timing cover, is there a way to ascertain if
cam eccentric is actually driving the fuel pump? I _REALLY_ don't
want to have to take off all the stuff (not to mention draining the
radiator, removing the water pump, extracting the harmonic balancer
UGGGHH) if I can possibly help it. Furthermore, is there anything else
that could be causing the flow failure? I seriously doubt that the
line from the gas tank is blocked because it was not very much work
for me to suck the gas up through the fuel line, and once I had it
flowing, I was able to flow copious amounts of gasoline oput onto
the asphalt just by using an improvised pump made from a Windex spray
bottle top.

Anyway, thanks for the help.


David



David J Harr
Entropy Introduction Engineer

IGNORE ABOVE RETURN ADDRESS! IT IS BOGUS! REPLY TO:
(email redacted)

'66 Mustang GT (Redline: ~7000 RPM)
'86 VFR750F (Redline: ~11000 RPM)
'93 NC30 (Redline: ~15500 RPM)
(I want the NC30 redline on my Mustang's 289...)

(Tick answers the door and sees two men in suits there)
Tick: I'm sorry, but we don't allow door-to-door salesmen in
this building.
First Man: Tick, you don't understand, we're from the _GOVERNMENT_!
Tick: That's all right. We have all the government we want. I
don't think we're interested in buying any more.





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Mail From: David Spangler (email redacted)


Your ex didn't divorce you for spending too much time with the car, did
she? winking smiley

I didn't think so...


On Mon, 31 Mar 1997, David J Harr wrote:

> I am getting ready to go to LA this weekend to spend Easter with my
> parents and my daughters (who I managed to pry out of the clutches
> of my ex-wife for a weekend). As I am running some last minute errands
> before heading out onto the road, the car just dies. Some
> experimentation reveals that there is no gas coming from the fuel
> pump to the carburetor ('66 Mustang, 4V 289 V8). "No problem", says
> I, "I have been thinking about replacing it with a high flow pump
> anyway." So I scoot down to the local store, and pick up a high flow
> (125 gallons per hour) Mallory mechanical fuel pump. Spent all evening
> Friday and a good part of Saturday tring to get the inlet to clear the
> damned oil filter. Finally got it all hooked up.
>
> Said to myself "Self, I don't want to button everything back up just
> to discover I have made a mistake and it is actually the cam eccentric
> is causing the trouble..."
>
> So I left the carburetor unhooked and turned the engine over, hoping to
> see fuel come spurting out of the outlet. No such luck. "Maybe it needs
> to be primed." So I sucked gasoline all the way through the system until
> it was coming out the other side. Turned it over again. Still no fuel
> flow.
>
> So now I'm feeling like a schmuck because I have spent all this time
> and energy (and missed seeing my girls!) chasing the wrong problem.
> My question is this:
>
> Short of taking off the timing cover, is there a way to ascertain if
> cam eccentric is actually driving the fuel pump? I _REALLY_ don't
> want to have to take off all the stuff (not to mention draining the
> radiator, removing the water pump, extracting the harmonic balancer
> UGGGHH) if I can possibly help it. Furthermore, is there anything else
> that could be causing the flow failure? I seriously doubt that the
> line from the gas tank is blocked because it was not very much work
> for me to suck the gas up through the fuel line, and once I had it
> flowing, I was able to flow copious amounts of gasoline oput onto
> the asphalt just by using an improvised pump made from a Windex spray
> bottle top.
>
> Anyway, thanks for the help.
>
>
> David
>
>
>
> David J Harr
> Entropy Introduction Engineer
>
> IGNORE ABOVE RETURN ADDRESS! IT IS BOGUS! REPLY TO:
> (email redacted)
>
> '66 Mustang GT (Redline: ~7000 RPM)
> '86 VFR750F (Redline: ~11000 RPM)
> '93 NC30 (Redline: ~15500 RPM)
> (I want the NC30 redline on my Mustang's 289...)
>
> (Tick answers the door and sees two men in suits there)
> Tick: I'm sorry, but we don't allow door-to-door salesmen in
> this building.
> First Man: Tick, you don't understand, we're from the _GOVERNMENT_!
> Tick: That's all right. We have all the government we want. I
> don't think we're interested in buying any more.
>
>
>



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