Hi,

I have a Wrangler YJ 88, about 3 weeks ago I totaly ran out of gas so
that my motor stopped. I had to put in some gas from my jerry can. Now
after 3 weeks the engine suddenly stopped ( I had enough fuel though)
and I could not start the motor again. I had the Jeep towed to a
garage, where they replaced the fuel pump. The Mechanist said
that the Membrane of the Fuel Pump broke. I drove the Jeep for
2 days again, but the motor was running quite rough, almost went out
when standing at a traffic light or so.

Now yesterday morning I had the same problem, could not start the
engine. Called my Mechanist again he said, we probably have to change
the Fuelp Pump and replace it with an electric fuel pump, but it also
could be the Camshaft... What has the Camshaft to do with that?

Anyone got similar problems or can help.

Thanks
Redford

 

"Redford Simon" <rs199@gmx.de> wrote in message
news:d8lanv0pddvq3usfkhgcaaft1sk39iofl9@4ax.com...
> Hi,
>
> I have a Wrangler YJ 88, about 3 weeks ago I totaly ran out of gas so
> that my motor stopped. I had to put in some gas from my jerry can. Now
> after 3 weeks the engine suddenly stopped ( I had enough fuel though)
> and I could not start the motor again. I had the Jeep towed to a
> garage, where they replaced the fuel pump. The Mechanist said
> that the Membrane of the Fuel Pump broke. I drove the Jeep for
> 2 days again, but the motor was running quite rough, almost went out
> when standing at a traffic light or so.

Rust/scale from the jerry can punctured the diaphragm, is my guess.

> Now yesterday morning I had the same problem, could not start the
> engine. Called my Mechanist again he said, we probably have to change
> the Fuelp Pump and replace it with an electric fuel pump, but it also
> could be the Camshaft... What has the Camshaft to do with that?

The camshaft allows the mechanic to apply the 'bend-over' factor
to the bill. The camshaft has a lobe that pumps the fuel
pump... I don't think that's your problem. I *do* think that
you should look for another mechanic.

When you ran out of gas, you got a bunch of crud into
your fuel supply system. You need to change any fuel
filters in your system... I'd make sure that there's one
between the tank and pump. You probably should completely
empty and clean your fuel tank... replacing the filters and checking
the pump should get you going again. Good luck.
__
Steve
..

 

"Redford Simon" <rs199@gmx.de> wrote in message
news:d8lanv0pddvq3usfkhgcaaft1sk39iofl9@4ax.com...
> Hi,
>
> I have a Wrangler YJ 88, about 3 weeks ago I totaly ran out of gas so
> that my motor stopped. I had to put in some gas from my jerry can. Now
> after 3 weeks the engine suddenly stopped ( I had enough fuel though)
> and I could not start the motor again. I had the Jeep towed to a
> garage, where they replaced the fuel pump. The Mechanist said
> that the Membrane of the Fuel Pump broke. I drove the Jeep for
> 2 days again, but the motor was running quite rough, almost went out
> when standing at a traffic light or so.

Rust/scale from the jerry can punctured the diaphragm, is my guess.

> Now yesterday morning I had the same problem, could not start the
> engine. Called my Mechanist again he said, we probably have to change
> the Fuelp Pump and replace it with an electric fuel pump, but it also
> could be the Camshaft... What has the Camshaft to do with that?

The camshaft allows the mechanic to apply the 'bend-over' factor
to the bill. The camshaft has a lobe that pumps the fuel
pump... I don't think that's your problem. I *do* think that
you should look for another mechanic.

When you ran out of gas, you got a bunch of crud into
your fuel supply system. You need to change any fuel
filters in your system... I'd make sure that there's one
between the tank and pump. You probably should completely
empty and clean your fuel tank... replacing the filters and checking
the pump should get you going again. Good luck.
__
Steve
..

 

I 'really' hope you changed your oil after the fuel pump went out!

An oil pan full of gasoline will do bad things to bearings....

Also after any work on old fuel pumps or gas lines it is a good idea to
change the gas filter out.

The gas filter has a 'gotcha' too. If it goes in upside down, all the
gas will drain out of the lines when it sits which can mean you need to
prime the carb with fuel to get it running again. Just like when it ran
out of gas.

The filter has 2 outlets, the center outlet goes to the carb and the
'top' outlet goes to the return line. If the return line isn't at the
top, gas can and will syphon back to the tank.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

Redford Simon wrote:
>
> Hi,
>
> I have a Wrangler YJ 88, about 3 weeks ago I totaly ran out of gas so
> that my motor stopped. I had to put in some gas from my jerry can. Now
> after 3 weeks the engine suddenly stopped ( I had enough fuel though)
> and I could not start the motor again. I had the Jeep towed to a
> garage, where they replaced the fuel pump. The Mechanist said
> that the Membrane of the Fuel Pump broke. I drove the Jeep for
> 2 days again, but the motor was running quite rough, almost went out
> when standing at a traffic light or so.
>
> Now yesterday morning I had the same problem, could not start the
> engine. Called my Mechanist again he said, we probably have to change
> the Fuelp Pump and replace it with an electric fuel pump, but it also
> could be the Camshaft... What has the Camshaft to do with that?
>
> Anyone got similar problems or can help.
>
> Thanks
> Redford

 

I 'really' hope you changed your oil after the fuel pump went out!

An oil pan full of gasoline will do bad things to bearings....

Also after any work on old fuel pumps or gas lines it is a good idea to
change the gas filter out.

The gas filter has a 'gotcha' too. If it goes in upside down, all the
gas will drain out of the lines when it sits which can mean you need to
prime the carb with fuel to get it running again. Just like when it ran
out of gas.

The filter has 2 outlets, the center outlet goes to the carb and the
'top' outlet goes to the return line. If the return line isn't at the
top, gas can and will syphon back to the tank.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

Redford Simon wrote:
>
> Hi,
>
> I have a Wrangler YJ 88, about 3 weeks ago I totaly ran out of gas so
> that my motor stopped. I had to put in some gas from my jerry can. Now
> after 3 weeks the engine suddenly stopped ( I had enough fuel though)
> and I could not start the motor again. I had the Jeep towed to a
> garage, where they replaced the fuel pump. The Mechanist said
> that the Membrane of the Fuel Pump broke. I drove the Jeep for
> 2 days again, but the motor was running quite rough, almost went out
> when standing at a traffic light or so.
>
> Now yesterday morning I had the same problem, could not start the
> engine. Called my Mechanist again he said, we probably have to change
> the Fuelp Pump and replace it with an electric fuel pump, but it also
> could be the Camshaft... What has the Camshaft to do with that?
>
> Anyone got similar problems or can help.
>
> Thanks
> Redford