Re: Thought I had it fixed ?
[Re: rickraw]
#1217794
04/17/12 05:54 PM
04/17/12 05:54 PM
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Joined: Jan 2003
Posts: 1,607 westerly, ri. usa
440lebaron
top fuel
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top fuel
Joined: Jan 2003
Posts: 1,607
westerly, ri. usa
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fwiw, dont use the metal seats for the street, rubber are more forgiving and will seal better gary
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Re: Thought I had it fixed ?
[Re: topside]
#1217798
04/17/12 06:47 PM
04/17/12 06:47 PM
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Joined: Mar 2009
Posts: 2,467 Sydney,Australia
tex013
top fuel
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top fuel
Joined: Mar 2009
Posts: 2,467
Sydney,Australia
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hey Ron , i tried the steel N/S combo a little while back.Do not use them unless you drop your pressure way down - like to 3 psi.otherwise they will flood regularly.i went back to stock viton no more flooding.I think they are are designed for alchohol - high volume low pressure
Tex
New best ET 10.259@129.65 . New best MPH 130.32 Finally fitted a solid cam, stepped it up a bit more 3690lbs through the mufflers New World block 3780lbs 10.278@130.80 . Wowser 10.253@130.24 footbraking from 1500rpm Power by Tex's Automotive
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Re: Thought I had it fixed ?
[Re: Quicksilver440]
#1217800
04/18/12 01:13 PM
04/18/12 01:13 PM
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Joined: Jan 2003
Posts: 27,421 Balt. Md
383man
OP
Too Many Posts
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OP
Too Many Posts
Joined: Jan 2003
Posts: 27,421
Balt. Md
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Quote:
I'll bet you have a litle speck of junk holding the needle and seat open.....even a tiny speck can do it.
Well I thought that at first but it only seems to happen after I drive it and get it hot. And it has done it about 4 times. I put a new fuel pump and regulator on it and it did it again so thats why I thought the pump gas might be messing with the rubber needle and seats. Ron
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Re: Thought I had it fixed ?
[Re: 383man]
#1217802
04/18/12 02:25 PM
04/18/12 02:25 PM
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Joined: Aug 2003
Posts: 43,228 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,228
Bend,OR USA
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Where is your filter Ron? I have had similar problems out here with non Ethanol pump swill in my Dominators with .120 viton needles and seats I use a 80 micron filter between the tank and the pump and a 10 micron filter between the pump and the regulator. I did end up dropping the pressure to 5.5 lbs. after replacing the .110 viton needles per Monte Smith suggestions on here several years ago, the larger needles have more area needing more pressure to close them and they flow more fuel at the lower pressures Why not try that
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Thought I had it fixed ?
[Re: 383man]
#1217803
04/18/12 02:44 PM
04/18/12 02:44 PM
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Joined: Jan 2003
Posts: 13,374 Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,374
Marion, South Carolina [><]
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Quote:
Quote:
I'll bet you have a litle speck of junk holding the needle and seat open.....even a tiny speck can do it.
Well I thought that at first but it only seems to happen after I drive it and get it hot. And it has done it about 4 times. I put a new fuel pump and regulator on it and it did it again so thats why I thought the pump gas might be messing with the rubber needle and seats. Ron
Do you have a deadhead fuel system? Your problem sounds familiar. I put a return style system on mine and it fixed it. The pump gas available now definitely seems more susceptible to vapor lock.
CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 18 spline 4 speed, Dana 60 '71 Demon, 340, low gear 904, 8.75 '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
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Re: Thought I had it fixed ?
[Re: an8sec70cuda]
#1217804
04/18/12 03:37 PM
04/18/12 03:37 PM
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Joined: Jan 2003
Posts: 17,875 S.E. Michigan
ZIPPY
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 17,875
S.E. Michigan
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Maybe the car is trying to tell you something: Maybe it doesn't like the ex. kidding Mine was acting up sort of the same a few weeks ago, first fire up of the season, ran terrible, same kind of symptoms....found a tiny piece of translucent plastic stuck in the needle and seat. Blew it out, and it was perfect after that. This might sound silly but make sure the oil hasn't got contaminated with all that fuel.
Rich H.
Esse Quam Videri
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