Wierd fuel pressure problem
#709255
05/27/10 11:14 AM
05/27/10 11:14 AM
|
Joined: Jan 2003
Posts: 21,064 Niles , Ohio
therocks
OP
oh wait.but hey.lets see.oh yeah.
|
OP
oh wait.but hey.lets see.oh yeah.
Joined: Jan 2003
Posts: 21,064
Niles , Ohio
|
Had the 440 out last week.Fuel pressure started to drop.Went to probally 3 to 4 psi.I figured maybe the Holley mech pump was going.Put my Carter hipo pump on.Started it and had 6 psi.Took it out last night and pressure was 3 to 4 and goiing to 1 at 50 mph.Today I hooked up my test gauge and had 4 to 5 psi idling.Id think the rod.Only thing I cant figure is why it had 6 to 7 when I first hooked up the Carter.I have great flow from the tank witj 3/8 line.Thought maybe my Auto meter gauge was bad but I doubt my test gauge is also.Just seems at 1 to 2 psi my Dominator would run out of fuel.So do you think the push rod might be bad?Whats the OE length?Rocky
Chrysler Firepower
|
|
|
Re: Wierd fuel pressure problem
[Re: ireland383]
#709257
05/27/10 11:27 AM
05/27/10 11:27 AM
|
Joined: Jan 2003
Posts: 21,064 Niles , Ohio
therocks
OP
oh wait.but hey.lets see.oh yeah.
|
OP
oh wait.but hey.lets see.oh yeah.
Joined: Jan 2003
Posts: 21,064
Niles , Ohio
|
Fuel line is all great.Has just had gas in it.I put 25 bucks worth in last week.Was empty or almost there a month ago.Rocky
Chrysler Firepower
|
|
|
Re: Wierd fuel pressure problem
[Re: ireland383]
#709259
05/27/10 11:54 AM
05/27/10 11:54 AM
|
Joined: Jan 2003
Posts: 21,064 Niles , Ohio
therocks
OP
oh wait.but hey.lets see.oh yeah.
|
OP
oh wait.but hey.lets see.oh yeah.
Joined: Jan 2003
Posts: 21,064
Niles , Ohio
|
Pulled the rod its just shy of 3 1/4 inches.My mics are in my big box and I can get to them.My headers are pretty much away from the pump and lines.Been on for 20 years and never had amy proble.Even cold the pressure is down.Im wondering if the sock might be a problem.Its new as is the sender only like 3 years and 3/8s.I did notice on the cam side the rod looks like it might be mushrooming a bit.Its real shiny the pump side is only shiny on one part.Rocky
Chrysler Firepower
|
|
|
Re: Wierd fuel pressure problem
[Re: therocks]
#709260
05/27/10 12:02 PM
05/27/10 12:02 PM
|
Joined: Feb 2005
Posts: 28,312 Cincinnati, Ohio
Challenger 1
Too Many Posts
|
Too Many Posts
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
|
Quote:
Pulled the rod its just shy of 3 1/4 inches.My mics are in my big box and I can get to them.My headers are pretty much away from the pump and lines.Been on for 20 years and never had amy proble.Even cold the pressure is down.Im wondering if the sock might be a problem.Its new as is the sender only like 3 years and 3/8s.I did notice on the cam side the rod looks like it might be mushrooming a bit.Its real shiny the pump side is only shiny on one part.Rocky
I'd try a new push rod. My
|
|
|
Re: Wierd fuel pressure problem
[Re: Challenger 1]
#709261
05/27/10 12:09 PM
05/27/10 12:09 PM
|
Joined: Jan 2003
Posts: 21,064 Niles , Ohio
therocks
OP
oh wait.but hey.lets see.oh yeah.
|
OP
oh wait.but hey.lets see.oh yeah.
Joined: Jan 2003
Posts: 21,064
Niles , Ohio
|
I think Ill go over the other garage and get one of my old ones.I know the OE one I pulled was good.This is a MP one I bought probally 11 years ago.It dosent have maybe 5000 miles on it.Rocky
Chrysler Firepower
|
|
|
Re: Wierd fuel pressure problem
[Re: 540DUSTER]
#709264
05/27/10 12:16 PM
05/27/10 12:16 PM
|
Joined: Jan 2003
Posts: 21,064 Niles , Ohio
therocks
OP
oh wait.but hey.lets see.oh yeah.
|
OP
oh wait.but hey.lets see.oh yeah.
Joined: Jan 2003
Posts: 21,064
Niles , Ohio
|
I had it running with my test gauge on it earlier.Still only had like 4 psi.One side looks beved one looks smooth.My fuel filter and bowls were still full even with low pressure.Rocky
Chrysler Firepower
|
|
|
Re: Wierd fuel pressure problem
[Re: 68HemiB]
#709268
05/27/10 03:14 PM
05/27/10 03:14 PM
|
Joined: Jan 2003
Posts: 21,064 Niles , Ohio
therocks
OP
oh wait.but hey.lets see.oh yeah.
|
OP
oh wait.but hey.lets see.oh yeah.
Joined: Jan 2003
Posts: 21,064
Niles , Ohio
|
Well I was going to get an old one.One of my sons locked the door at the other garage and I dont have a key.So now I have to wait for one of them to get my tall ladder and go thru an upstairs window.That or hope one of the dummys have a key.My sons buddy rents the house and I have the garage and never lock it.Figure out why kids do stuff.Worst part is they are in their 30s.Rocky
Chrysler Firepower
|
|
|
Re: Wierd fuel pressure problem
[Re: MNobody]
#709270
05/28/10 01:11 PM
05/28/10 01:11 PM
|
Joined: Jan 2003
Posts: 21,064 Niles , Ohio
therocks
OP
oh wait.but hey.lets see.oh yeah.
|
OP
oh wait.but hey.lets see.oh yeah.
Joined: Jan 2003
Posts: 21,064
Niles , Ohio
|
I found one of the old ones.Ill put it in later and see what happens.It looks like it might be just a tad longer than the one I pulled.Hopefully it will fix the problem.Rocky
Chrysler Firepower
|
|
|
Re: Wierd fuel pressure problem
[Re: 540DUSTER]
#709274
05/30/10 10:18 AM
05/30/10 10:18 AM
|
Joined: Jan 2003
Posts: 21,064 Niles , Ohio
therocks
OP
oh wait.but hey.lets see.oh yeah.
|
OP
oh wait.but hey.lets see.oh yeah.
Joined: Jan 2003
Posts: 21,064
Niles , Ohio
|
Found my old rod.It was a tad longer than the one I took out.Tried the Holley and Carter pumps and still only 4 PSI.I think maybe the cam eccentric might be worn.I might pull the Holley off my kis car and try it.One other question.If I have to go electric do you absolutley need a return line?I might get the Summit pump and reg.My Dominator likes a lot of fuel.Rocky
Chrysler Firepower
|
|
|
|
|