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Re: Vapor Lock
[Re: cornet684me]
#837041
10/27/10 11:23 PM
10/27/10 11:23 PM
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Joined: Jan 2003
Posts: 75,005
U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,005
U.S.S.A.
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Quote:
i shined a light in the fuel pump hole and the rod seem to be fine and put my finger on it and it seem to fine
That's fine but you can see the other end that contacts the cam since isit up in the block , that is the end that wears . the orange fuel is not normal unless the fuel in the tank is orange .
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Re: Vapor Lock
[Re: cornet684me]
#837042
10/27/10 11:26 PM
10/27/10 11:26 PM
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Joined: Jan 2003
Posts: 75,005
U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,005
U.S.S.A.
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Quote:
the only good thing, i have narrowed the orange gas to the hard line between the tank and the fuel pump, i think all i need to do is replace this line and make sure the clamps are on all the rubber lines and i should be okay, right?
I thought you said you changed the lines ??? If you did then why is there still a factory clamp ?? Did you swap in a 35 yr old rusty line ?
You need to get those old, dry rotted, not ethanaol compatible, 35 year old rubber lines out of the system also .
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Re: Vapor Lock
[Re: cornet684me]
#837045
10/28/10 12:17 AM
10/28/10 12:17 AM
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Joined: Feb 2005
Posts: 5,221
Branson, Mo.
joedust451
super gas
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super gas
Joined: Feb 2005
Posts: 5,221
Branson, Mo.
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Quote:
here is the pic of the carb, i swithed around the inlet, i did have to bend this line a little to get it to work with the dist.,
Looks like you kinked that one going to the carb when you bent it, anyways, i too thought you changed the "whole" fuel line back to the tank, My advise at this point, rip all that old sh*t out of there & install some 3/8 line with new clamps & rubber hose.
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Re: Vapor Lock
[Re: cornet684me]
#837047
10/28/10 08:54 PM
10/28/10 08:54 PM
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Joined: Jul 2003
Posts: 6,167
Maryland
GO_Fish
master
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master
Joined: Jul 2003
Posts: 6,167
Maryland
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You tried loosening your gas cap and it made no difference in your situation?
I removed my locking gas cap and went back to the regular gas cap. My fuel filter is always full now, even after a 30 minute drive and some burnouts. And I can open the hood now without the engine heat burning off my eye brows! The locking gas cap would not let the tank breathe properly. Engine could not get enough gas, so it went lean and engine temps rocketed up. Same thing could happen if your tank vent were to be clogged.
Scott B.
"I'm a self-made man... I started with nothing, and I still have most of it!"
68 360 rusty B'cuda 'vert (GO Fish)13.59@ 98.72 mph
69 340 GTS stock 14.18@ 95.60 mph
01 5.9L Ram 1500 Quad Cab 4x4
01 3.5L 300M 16.23@ 86.97 mph
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Re: Vapor Lock
[Re: cornet684me]
#837049
10/29/10 07:54 AM
10/29/10 07:54 AM
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Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
Challenger 1
Too Many Posts
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Too Many Posts
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
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Quote:
yea, i took the cap off while the car was running and it did not make a difference, i am in the process of getting a new gas line from the tank to the fuel pump
I didn't see or read.
Did you blow thru the pickup to see if it's restricted?
And did you remove the fuel pump push rod to inspect it?
There's nothing wrong with your supply line unless there's a hole in it somewhere from rust. imo
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Re: Vapor Lock
[Re: Challenger 1]
#837050
10/29/10 09:34 AM
10/29/10 09:34 AM
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Joined: Feb 2005
Posts: 5,221
Branson, Mo.
joedust451
super gas
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super gas
Joined: Feb 2005
Posts: 5,221
Branson, Mo.
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Quote:
Quote:
yea, i took the cap off while the car was running and it did not make a difference, i am in the process of getting a new gas line from the tank to the fuel pump
I didn't see or read.
Did you blow thru the pickup to see if it's restricted?
And did you remove the fuel pump push rod to inspect it?
There's nothing wrong with your supply line unless there's a hole in it somewhere from rust. imo
Chally, he is getting orange fuel & not getting much fuel, he has already checked the tank/pick-up for rust & blockage, he said that was all clear, I had supply lines be bad in these cars & i changed "everything" & still chaseing my tail & scratching my head trying to figure it out, sure enough thats what it was, it even turned my gas rusty color too.
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Re: Vapor Lock
[Re: joedust451]
#837051
10/29/10 10:42 AM
10/29/10 10:42 AM
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Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
Challenger 1
Too Many Posts
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Too Many Posts
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
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Quote:
Quote:
Quote:
yea, i took the cap off while the car was running and it did not make a difference, i am in the process of getting a new gas line from the tank to the fuel pump
I didn't see or read.
Did you blow thru the pickup to see if it's restricted?
And did you remove the fuel pump push rod to inspect it?
There's nothing wrong with your supply line unless there's a hole in it somewhere from rust. imo
Chally, he is getting orange fuel & not getting much fuel, he has already checked the tank/pick-up for rust & blockage, he said that was all clear, I had supply lines be bad in these cars & i changed "everything" & still chaseing my tail & scratching my head trying to figure it out, sure enough thats what it was, it even turned my gas rusty color too.
OK I was betting that screen on his pickup was restricted or the fuel pump push rod was bad.
Sure the line front to back can be rusty, but enough to restrict flow?
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Re: Vapor Lock
[Re: Challenger 1]
#837053
10/29/10 01:55 PM
10/29/10 01:55 PM
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Joined: Feb 2005
Posts: 5,221
Branson, Mo.
joedust451
super gas
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super gas
Joined: Feb 2005
Posts: 5,221
Branson, Mo.
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Quote:
Quote:
Quote:
Quote:
yea, i took the cap off while the car was running and it did not make a difference, i am in the process of getting a new gas line from the tank to the fuel pump
I didn't see or read.
Did you blow thru the pickup to see if it's restricted?
And did you remove the fuel pump push rod to inspect it?
There's nothing wrong with your supply line unless there's a hole in it somewhere from rust. imo
Chally, he is getting orange fuel & not getting much fuel, he has already checked the tank/pick-up for rust & blockage, he said that was all clear, I had supply lines be bad in these cars & i changed "everything" & still chaseing my tail & scratching my head trying to figure it out, sure enough thats what it was, it even turned my gas rusty color too.
OK I was betting that screen on his pickup was restricted or the fuel pump push rod was bad.
Sure the line front to back can be rusty, but enough to restrict flow?
Yes most definitly, they can rust so bad the inner walls will collapse or big chunks will come off, all this will/can restrict fuel flow "big time" even though the outer line looks fine.
He said he blew through the pick-up in the tank & it was clear, i've seen the "end' off the line clog up from old sluggy fuel & the screen still be ok, but like he said, the fuel tank/pickup were fine & replaced at one time, the main line wasn't, most often if your tank is nasty & rusty from age, you can "rest assured" so is the main line, so its best to replace the whole sha-bang!!
As for the rod, yeah i would just replace it for peice of mind, there for you "know" its good, there not that exspensive.
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Re: Vapor Lock
[Re: cornet684me]
#837056
10/29/10 08:20 PM
10/29/10 08:20 PM
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Joined: Oct 2003
Posts: 2,537
PORT ALBERNI , BC., CANADA
superwrench
master
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master
Joined: Oct 2003
Posts: 2,537
PORT ALBERNI , BC., CANADA
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MEASURE the rod.......length is critical. I had a rod go bad in my Challenger when I street drove it.....it started acting weird like it was running out of fuel after a short drive...one end (cam end) of the rod was worn off 3/8". It was starting up cold OK, but it only took 10 minutes and it would act up. Finally gave up the ghost 15 miles from home halfway up a hill on a narrow highway. NOT fun. 
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Re: Vapor Lock
[Re: Challenger 1]
#837058
10/29/10 08:54 PM
10/29/10 08:54 PM
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Joined: Jul 2005
Posts: 1,954
Blairsden, CA
Triggerfish
top fuel
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top fuel
Joined: Jul 2005
Posts: 1,954
Blairsden, CA
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When I switched to a solid cam in my Hemi, I didn't realize I had a repop pushrod & the cam ate it up. I had the same symptoms as you, but living Reno, the August temps were up to 100 degrees & the methanol in the pump gas, made the fuel boil at a much lower temp & bingo, vapor lock. I put the factory vapor separator w/ return line & it solved the problem, but the pushrod was already going south. Put an Eddy mechanical pump w/ 130 lbs of spring pressure & the rod didn't last long. Had to switch to a Holley electric pump & larger return line. No problems since, but I think you should pull the rod out & check the cam end. Find an original OEM pushrod & have its hardness checked. My understanding is that the factory rods were of a harder steel & won't buckle under the pressure & low zinc oils. Best wishes in getting it running.
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Re: Vapor Lock
[Re: Triggerfish]
#837059
10/29/10 10:27 PM
10/29/10 10:27 PM
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Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
Challenger 1
Too Many Posts
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Too Many Posts
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
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Quote:
When I switched to a solid cam in my Hemi, I didn't realize I had a repop pushrod & the cam ate it up. I had the same symptoms as you, but living Reno, the August temps were up to 100 degrees & the methanol in the pump gas, made the fuel boil at a much lower temp & bingo, vapor lock. I put the factory vapor separator w/ return line & it solved the problem, but the pushrod was already going south. Put an Eddy mechanical pump w/ 130 lbs of spring pressure & the rod didn't last long. Had to switch to a Holley electric pump & larger return line. No problems since, but I think you should pull the rod out & check the cam end. Find an original OEM pushrod & have its hardness checked. My understanding is that the factory rods were of a harder steel & won't buckle under the pressure & low zinc oils. Best wishes in getting it running.
I have family nearby and have cruised Reno the last 2 summers. Yup 6000+ feet alitidue and 95 degree temps, your fuel system better be up for it. 
I also run the factory VS with a return line to the tank. On both my 340 and my 440/6.
Drove all over Reno, Grand Canyon, Vegas, Salt flats and more. All those places I mentioned were hot with the AC running the whole time and the stock fuel pump did fine with the VS and return line.
I even drove it for 120 MPH for over 5 miles at a time on the salt flats with no fuel starvation!!
Also drove the 74 340 challenger to the top of Pikes Peak , no problem. 
Love Reno, will be back there next year at least once.
Salt Flats...gee I hope I don't run into anything. lol 
Last edited by Challenger 1; 10/29/10 10:36 PM.
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