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BossRide
super street


Reged: Jan 26 2003
Loc: Southaven, MS
Exactly WHY is my car hard to start when warm?
      #5251214 - Mon May 25 2009 10:39 AM

I've asked around and all my friends say it's "just how it is." I am having trouble believing that Mopars rolled off the showroom floors with a hard starting condition.

Cold- Turn the key, push the pedal to the floor to set the choke, Boom! Starts right up.

Runs good, drives nice... pull in and park... go to leave and either it fires right off if less than, say 15 minutes has passed, or it spins over and over and finally catches.

Trial and error of different procedures (pumping the gas, not touching the gas, giving it full throttle or partial throttle) is basically all the same.

Fresh 360... tuned up... (good plugs, wires, cap, etc..) new fuel tank, filter, and pump, 600cfm Holley carb with electric choke, timing on the money... what is the secret? Any thoughts on what to check or how to remedy?

Does YOURS fire right off when warm?

--------------------
Happiness is a hood scoop...



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LimelightCuda
enthusiast


Reged: Jan 03 2004
Loc: The Garden State
Re: Exactly WHY is my car hard to start when warm? [Re: BossRide]
      #5251223 - Mon May 25 2009 10:44 AM

My slant six equipped Scamp does the same thing. I think it is due to it boiling the fuel when it sits after it is fully warmed up but I'm not sure. My Barracuda with a 440 does not have this problem. My former Barracuda with a 318, which I had many years ago, would start up with a flick of the ignition switch, you didn't even have to give it any gas or even get in the car if it was warmed up.

--------------------
MoPar or no car.
Phil



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BergmanAutoCraft
master


Reged: Nov 28 2003
Loc: Long Island, NY USA
Re: Exactly WHY is my car hard to start when warm? [Re: LimelightCuda]
      #5251271 - Mon May 25 2009 11:04 AM

Couple reasons.

First, fuel boils at 100 deg F. This was not so back in the day.

The only place fuel usually boils is in the bowls, because here it is not under pressure.

During heat soak, the fuel evaporates, and sometimes pushes out of the bowls into the motor, causing a flooding condition momentarily.

The extended cranking is to refill the bowls.

I have found wood spacers, and a cool running motor to comat this pretty well. I am also a proponent of electric fans, which keep good airflow over the motor at low speeds.

--------------------

]


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71valiant
enthusiast


Reged: Apr 21 2007
Loc: NE Oklahoma
Re: Exactly WHY is my car hard to start when warm? [Re: BossRide]
      #5251296 - Mon May 25 2009 11:16 AM


My A-body has headers and they go right by my starter. I think it gets the starter hot and it cranks real slow when its hot.


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azmopardart
Foot Fetish


Reged: Apr 07 2007
Loc: None of your business
Re: Exactly WHY is my car hard to start when warm? [Re: 71valiant]
      #5251348 - Mon May 25 2009 11:47 AM

All my stuff starts within 1-2 seconds, whether hot or cold

--------------------
1969 Charger
440/727/3.91

1990 Mustang 5.0 LX
(Daily driver)
12.91@104

1973 Ford F250
EFI 302/AOD/Dana 60 3.54 posi


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1_WILD_RT
Management Trainee


Reged: Jan 15 2004
Loc: Today? Who Knows?
Re: Exactly WHY is my car hard to start when warm? [Re: LimelightCuda]
      #5251365 - Mon May 25 2009 11:54 AM

Mine lights off instantly... I think the new fuel boils off due to engine heat.. In a modern fuel injected car where the fuel is injected & the fuel is always pressurized it's a non-issue but a carburator where the fuel sits on a hot engine....I've blocked the crossover & added a heat shield...

http://images.google.com/imgres?imgurl=h...sa%3DN%26um%3D1


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pushbutton
super stock


Reged: Nov 15 2008
Loc: tennessee
Re: Exactly WHY is my car hard to start when warm? [Re: azmopardart]
      #5251366 - Mon May 25 2009 11:55 AM

Quote:

All my stuff starts within 1-2 seconds, whether hot or cold


Man thats fast! Wish my stuff would start that quick.

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SomeCarGuy
non-partisan


Reged: Feb 02 2003
Loc: Someplace you aren't
Re: Exactly WHY is my car hard to start when warm? [Re: pushbutton]
      #5251403 - Mon May 25 2009 12:17 PM

Mine starts fast, I have aluminum intake, heat riser blocked. Eddy carb. No spacer, just two gaskets.

Is your timing chain tight?


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RapidRobert
circle track


Reged: Nov 20 2003
Loc: Lincoln Nebraska
Re: Exactly WHY is my car hard to start when warm? [Re: SomeCarGuy]
      #5251458 - Mon May 25 2009 12:52 PM

k.i.s.s. next time BEFORE you crank it see if there's an A/P shot then pull the coil to dist wire & hold it 1/4" from ground & have someone crank it.

--------------------
live every 24 hour block of time like it's your last day on earth


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BossRide
super street


Reged: Jan 26 2003
Loc: Southaven, MS
Re: Exactly WHY is my car hard to start when warm? [Re: SomeCarGuy]
      #5251866 - Mon May 25 2009 04:23 PM

Quote:

Mine starts fast, I have aluminum intake, heat riser blocked. Eddy carb. No spacer, just two gaskets.

Is your timing chain tight?




I have an Offy aluminum intake, and the timing chain should be tight, the motor has around 5,000 miles on it since the rebuild.

--------------------
Happiness is a hood scoop...



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MoparforLife
moparts member


Reged: Jan 19 2003
Loc: Upper Midwest
Re: Exactly WHY is my car hard to start when warm? [Re: BossRide]
      #5252071 - Mon May 25 2009 06:06 PM

Like said above fuel boiling over. This is true especially with alcohol blendas they boil at a lot lower temp than even the poor gas we have now. HOLD the gas pedal to the floor while cranking till it starts allow to clean out just like you would a flooded engine. Essentially that is what you have.

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JonC
Not Changed. Still An Enthusiast


Reged: Jan 21 2003
Loc: Millinocket, Maine
Re: Exactly WHY is my car hard to start when warm? [Re: BossRide]
      #5252103 - Mon May 25 2009 06:20 PM

This was my condition at one time and I found out the vacuum advance was hooked up to the wrong port on the carb. Started good cold but terrible hot. Just a long shot.

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BossRide
super street


Reged: Jan 26 2003
Loc: Southaven, MS
Re: Exactly WHY is my car hard to start when warm? [Re: JonC]
      #5252222 - Mon May 25 2009 07:18 PM

Quote:

This was my condition at one time and I found out the vacuum advance was hooked up to the wrong port on the carb. Started good cold but terrible hot. Just a long shot.




I'm going to double check that, along with the coil wire and see about getting a heat shield or carb spacer.

Thanks for all of the tips and help.

--------------------
Happiness is a hood scoop...



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rss
mopar addict


Reged: Aug 03 2007
Loc: Seattle, WA
Re: Exactly WHY is my car hard to start when warm? [Re: BossRide]
      #5252525 - Mon May 25 2009 09:31 PM

This might make you feel better.

Mine has gotten to the point that it won't even start when warm. Nearly had it towed last week when I shut it down to fill up with gas. By the time the tow truck arrived it started and I was able to drive home. Fires up great cold, runs great, but if I turn it off and try to restart hot I can just crank away till the battery is nearly dead.


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68Bullit
mopar


Reged: Mar 30 2008
Loc: Western NC
Re: Exactly WHY is my car hard to start when warm? [Re: rss]
      #5252591 - Mon May 25 2009 10:11 PM

Mine did the same thing, and recently I put a wooden spacer there to help. It helped out some, but not much. Even with the wooden spacer the carb is too hot to the touch once the engine is up to temp. No heat riser or anything. I'm thinking about using some fuel line insulation next to see if that will help. My fuel line runs cloe to the header on the passenger side, and is routed up very close to the front of the engine block before it ties into the carb.

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DaytonaTurbo
I Could Care Less...But I'm Not Going To


Reged: Feb 26 2003
Loc: Manitoba, Canada
Re: Exactly WHY is my car hard to start when warm? [Re: 68Bullit]
      #5252607 - Mon May 25 2009 10:20 PM

Quote:

Mine did the same thing, and recently I put a wooden spacer there to help. It helped out some, but not much. Even with the wooden spacer the carb is too hot to the touch once the engine is up to temp. No heat riser or anything. I'm thinking about using some fuel line insulation next to see if that will help. My fuel line runs cloe to the header on the passenger side, and is routed up very close to the front of the engine block before it ties into the carb.




If your fuel is boiling out like that your best bet is to just switch to an electric fuel pump with a return style regulator. That way when you turn your key to 'run' and the pump kicks on it fills up your carb bowls and the return style regulator keeps the fuel in the lines cooler plus stops the pump from overflowing your carb and pushing fuel past the needle/seat.

--------------------


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DaytonaTurbo
I Could Care Less...But I'm Not Going To


Reged: Feb 26 2003
Loc: Manitoba, Canada
Re: Exactly WHY is my car hard to start when warm? [Re: BergmanAutoCraft]
      #5252611 - Mon May 25 2009 10:22 PM

Quote:


During heat soak, the fuel evaporates, and sometimes pushes out of the bowls into the motor, causing a flooding condition momentarily.





How would this happen? Would not the evaporating/boiling fuel simply vent out of the bowl vent tubes?

--------------------


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1_WILD_RT
Management Trainee


Reged: Jan 15 2004
Loc: Today? Who Knows?
Re: Exactly WHY is my car hard to start when warm? [Re: 68Bullit]
      #5252614 - Mon May 25 2009 10:24 PM Attachment (130 downloads)

Seriously try a heat shield, it deflects most of the engine heat around the carb...In order to clear the linkage I had to trim one corner a little but it works great... Not a pretty as some other spacers but more effective & I care more about function as I like to drive my car... And if your gonna drive it it's gotta start..

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hooziewhatsit
Wall Flower


Reged: Oct 05 2007
Loc: State of Jefferson
Re: Exactly WHY is my car hard to start when warm? [Re: DaytonaTurbo]
      #5252689 - Mon May 25 2009 11:05 PM

Quote:

Quote:


During heat soak, the fuel evaporates, and sometimes pushes out of the bowls into the motor, causing a flooding condition momentarily.





How would this happen? Would not the evaporating/boiling fuel simply vent out of the bowl vent tubes?




Unless it overloads the vents I watched as the secondary area on my carb got nice and moist with fuel after shutting it off once, as I listened to it boil

A wood spacer is going to be my next project.

--------------------
If you ever find yourself in a fair fight, your tactics suck.


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RapidRobert
circle track


Reged: Nov 20 2003
Loc: Lincoln Nebraska
Re: Exactly WHY is my car hard to start when warm? [Re: DaytonaTurbo]
      #5252699 - Mon May 25 2009 11:13 PM

Quote:

How would this happen? Would not the evaporating/boiling fuel simply vent out of the bowl vent tubes?


It'd depend if it was heavier than air or not & it's probably still evaporating when he comes back then it gets sucked in when he cranks it

--------------------
live every 24 hour block of time like it's your last day on earth


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jbc426
1970 Cuda Black Series


Reged: Mar 01 2007
Loc: West Coast, USA
Re: Exactly WHY is my car hard to start when warm? [Re: BossRide]
      #5252917 - Tue May 26 2009 07:10 AM Attachment (92 downloads)

I had this problem and was also baffled until I spoke with Doug Dutra, the famous slant six guru. He explained what was happening:

When you shut off a warm engine, the heat from your engine's intake manifold is boiling the fuel in your float bowl and causing it to drip into the intake etc causing an excessively rich condition. This happens because the fuel percolation drops the float and allows more fuel from the still presurized fuel line, between the fuel pump and the needle and seat to flow more fuel into the carb to bring the float level back to normal. This continues until the pressure in the fuel line between the fuel pump and the needle and seat goes to zero. In the mean while, a significant amount of fuel has now percolated out of the carb AND the pressurized fuel line between the fuel pump and the carb (until the presure is released by the process). Quite a bit of gas ends up in the intake every time you shut off a hot motor.

This is how you fix it:

#1 Use two gaskets and a sheet of aluminum to isolate the carb from the intake manifold. This will likely require longer carb studs. Be sure to check for hood clearance. (this helped a lot, but did not eliminate the problem completely)

#2 Install a fuel return line from a 3-nipple fuel filter, which is available from any autoparts store between the fuel pump and the carb, and the fuel tank. The third nipple on the 3-nipple fuel filters has a metered orifice to limit the amount of fuel it flows. I had to install a return line and a 2 fitting fuel sending unit on my 68 slant six car to complete this installation. The car had an original 5/16 fuel line, so I added a 3/8ths line as the main fuel line and used the 5/16ths line as the return. I bought a dual fitting fuel sending unit for less than $50 off ebay, ran the lines, installed the 3-nipple filter. I never had a hot start problem again.

--------------------
1970 Plymouth 'Cuda
1968 Plymouth Barracuda Convertible 5.9 Magnum EFI
Here's a little video by Mr Angry about the 1970 'Cuda http://www.youtube.com/watch?v=VzHxZ2f7HwY


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RapidRobert
circle track


Reged: Nov 20 2003
Loc: Lincoln Nebraska
Re: Exactly WHY is my car hard to start when warm? [Re: jbc426]
      #5252947 - Tue May 26 2009 07:23 AM

that's good stuff, #1 for the heat & #2 to release the psi

--------------------
live every 24 hour block of time like it's your last day on earth


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jbc426
1970 Cuda Black Series


Reged: Mar 01 2007
Loc: West Coast, USA
Re: Exactly WHY is my car hard to start when warm? [Re: RapidRobert]
      #5252976 - Tue May 26 2009 07:41 AM

Yah, that Dutra is something else! If you don't want to spend the money on a new dual nipple fuel sending unit, you can drill and add a fitting to your existing sending unit by using those brass hardware store parts, some cheap aluminum return line and the fuel filter. The total cost is around $40 or less.

--------------------
1970 Plymouth 'Cuda
1968 Plymouth Barracuda Convertible 5.9 Magnum EFI
Here's a little video by Mr Angry about the 1970 'Cuda http://www.youtube.com/watch?v=VzHxZ2f7HwY


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jt1
super gas


Reged: Jan 20 2003
Loc: North Carolina
Re: Exactly WHY is my car hard to start when warm? [Re: RapidRobert]
      #5252978 - Tue May 26 2009 07:41 AM

I understand the fuel boiling and evaporating out the vent tubes, but how does any fuel get into the engine to cause a rich condition? It seems something would have to force the fuel thru the jets and out the boosters.

John


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Magnumguy
super gas


Reged: Jan 19 2003
Loc: S.E.Ohio
Re: Exactly WHY is my car hard to start when warm? [Re: 1_WILD_RT]
      #5253018 - Tue May 26 2009 08:09 AM

Quote:

Seriously try a heat shield, it deflects most of the engine heat around the carb...In order to clear the linkage I had to trim one corner a little but it works great... Not a pretty as some other spacers but more effective & I care more about function as I like to drive my car... And if your gonna drive it it's gotta start..




Where'd you get the spacer (shield) on the right?

I wonder if you don't have your floats too high. Every Magnum I've owned (and it's been alot) would start pretty much the same hot or cold, except one of my current driver one. It will smoke black some when it starts hot, rolls over OK, but takes 2-3 seconds, but almost instant cold.

--------------------
Where any old Magnum can call it home....
"Multiple Magnum owner since 1978!!"

Looking for that elusive 78 P code GT w/T's or moonroof!!!


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RATTRAP
pro stock


Reged: Mar 28 2005
Loc: N/E, Michigan
Re: Exactly WHY is my car hard to start when warm? [Re: BossRide]
      #5253035 - Tue May 26 2009 08:20 AM

Prob not heat as much as your timing is off

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BossRide
super street


Reged: Jan 26 2003
Loc: Southaven, MS
Re: Exactly WHY is my car hard to start when warm? [Re: RATTRAP]
      #5253045 - Tue May 26 2009 08:28 AM

Quote:

Prob not heat as much as your timing is off




That has crossed my mind... maybe I'll double check it... with the Holley and intake, mild cam and headers, should I set it different that the stock specs?
It was set when the engine was installed and I forget exactly what we set it at, it's been almost two years.

Funny thing, the old tired 2bbl 318 did the same thing... start great, spin over and over when hot. It acts like the gas has left the carb, and it will catch slowly, but not be skippy or stumble, just light off slowly.

--------------------
Happiness is a hood scoop...



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Rug_Trucker
My posts are intoxicating!


Reged: Jan 19 2003
Loc: Not2farfromNashville, TN
Re: Exactly WHY is my car hard to start when warm? [Re: jt1]
      #5253077 - Tue May 26 2009 08:44 AM

Quote:

I understand the fuel boiling and evaporating out the vent tubes, but how does any fuel get into the engine to cause a rich condition? It seems something would have to force the fuel thru the jets and out the boosters.

John




Slant sixes are the worst. Fuel line is routed like crap! Even before they started adding alcohol to our fuel my 72 had to be held to the floor to start hot. This was on 50* days too!

Rerouting the fuel line worked excellent! No return line needed. My 74 slant Dart has the same problem.

Fuel injection hose with the fuel injection clamps routed over the valve cover with enough slack to pull the cover to set your valves works. It is in a sticky on www.slantsix.org in the engine section.

I have watched hot steamy gasoline boil and dribble into my hot intake many times.

--------------------
"The only thing to do for triumph of evil is for good men to do nothing"

"NUNQUAM NON PARATUS!"


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cataclysm80
master


Reged: Oct 24 2006
Loc: Florida
Re: Exactly WHY is my car hard to start when warm? [Re: rss]
      #5253111 - Tue May 26 2009 09:07 AM

Quote:

This might make you feel better.

Mine has gotten to the point that it won't even start when warm. Nearly had it towed last week when I shut it down to fill up with gas. By the time the tow truck arrived it started and I was able to drive home. Fires up great cold, runs great, but if I turn it off and try to restart hot I can just crank away till the battery is nearly dead.




My original 1938 ford flathead does that same thing. I've been told it's caused by a bad coil that fails when it gets hot.

Check your spark next time it happens.

Tav


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68Bullit
mopar


Reged: Mar 30 2008
Loc: Western NC
Re: Exactly WHY is my car hard to start when warm? [Re: Rug_Trucker]
      #5253144 - Tue May 26 2009 09:25 AM

With all the talk about percolation and fuel boiling, makes you wonder why more fires aren't getting started! If that's even possible?

Here's one though, for those with more than one carb. Right now, I'm using a Holley 750DP, but I also have a nice TQ. What few times that I've used the TQ, it didn't seem to hot start any. Would this be because of the phenolic design? In other words, would an extra 20 degrees cooler, which the TQ's are said to run on average, make the necessary difference to keep the fuel boiling at bay?


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moper
moparts techie


Reged: Feb 03 2003
Loc: Columbia, CT
Re: Exactly WHY is my car hard to start when warm? [Re: 68Bullit]
      #5253161 - Tue May 26 2009 09:32 AM

What does the engine have for cylinder pressure? As bad as the gas is, I have yet to have an issue like this on any of mine or customers'. We have the 10% ethanol fuel, have for 4 years now at least. My truck has run at 220 before when working, and 45 minutes after parking, it turns over 2-3 times and it's fine. I find most of the issues with starting are a result of tuning or lack of cylinder pressure due to wear, or camshaft choice, or camshaft timing. Much more so than percolation issues. JMO.

--------------------
Well, art is art, isn't it? Still, on the other hand, water is water! And east is east and west is west and if you take cranberries and stew them like applesauce they taste much more like prunes than rhubarb does. Now, uh... Now you tell me what you know.


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1_WILD_RT
Management Trainee


Reged: Jan 15 2004
Loc: Today? Who Knows?
Re: Exactly WHY is my car hard to start when warm? [Re: Magnumguy]
      #5253195 - Tue May 26 2009 09:51 AM

Quote:


Where'd you get the spacer (shield) on the right?






http://store.summitracing.com/egnsearch....p;x=39&y=10


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68Bullit
mopar


Reged: Mar 30 2008
Loc: Western NC
Re: Exactly WHY is my car hard to start when warm? [Re: 1_WILD_RT]
      #5253320 - Tue May 26 2009 11:20 AM

How thick is that shield? (How much vertical space will it take up, gaskets included) for those with hood clearance concerns?

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1_WILD_RT
Management Trainee


Reged: Jan 15 2004
Loc: Today? Who Knows?
Re: Exactly WHY is my car hard to start when warm? [Re: 68Bullit]
      #5253356 - Tue May 26 2009 11:44 AM

Less than 1/4"... Most of the heat rises around the plate rather than through the carb body...

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jbc426
1970 Cuda Black Series


Reged: Mar 01 2007
Loc: West Coast, USA
Re: Exactly WHY is my car hard to start when warm? [Re: Rug_Trucker]
      #5253413 - Tue May 26 2009 12:08 PM

Quote:

Quote:

I understand the fuel boiling and evaporating out the vent tubes, but how does any fuel get into the engine to cause a rich condition? It seems something would have to force the fuel thru the jets and out the boosters.

John




Slant sixes are the worst. Fuel line is routed like crap! Even before they started adding alcohol to our fuel my 72 had to be held to the floor to start hot. This was on 50* days too!

Rerouting the fuel line worked excellent! No return line needed. My 74 slant Dart has the same problem.

Fuel injection hose with the fuel injection clamps routed over the valve cover with enough slack to pull the cover to set your valves works. It is in a sticky on www.slantsix.org in the engine section.

I have watched hot steamy gasoline boil and dribble into my hot intake many times.




Rerouting the fuel line was my first attempt at getting rid of this problem. Then I did the heat shield, which I cut out from 18 gauge sheet aluminum from Orchard Supply Hardware, and that worked for all but the hottest days. Finally, I ran the return line.

In addition to eliminating the hot starting issues, the cooler carb and fuel gave me a noticable performance improvement.

--------------------
1970 Plymouth 'Cuda
1968 Plymouth Barracuda Convertible 5.9 Magnum EFI
Here's a little video by Mr Angry about the 1970 'Cuda http://www.youtube.com/watch?v=VzHxZ2f7HwY


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71383beep
addict


Reged: Jan 24 2005
Loc: Kenosha, WI
Re: Exactly WHY is my car hard to start when warm? [Re: jbc426]
      #5253498 - Tue May 26 2009 12:56 PM

I too experience this problem. We also have the mandatory 10% ethanol blends and have come to the conclusion that a a vapor separator is probably needed.

It sucks though. Go for a cruise. Car starts and runs just fine. park for a half hour and she won't start. Pedal to floor crank and eventually she'll fire. Very frustrating.

I got a separator from the last swap/show. Now I just need to cut my nice new steel braided carb supply line... and install a return line.

--------------------
'71 EL5 Roadrunner - 383 Auto w/ AG
'13 VW Passat SE - 2.5L Manual - White
'08 Commander Limited - 4.7L - Silver


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rss
mopar addict


Reged: Aug 03 2007
Loc: Seattle, WA
Re: Exactly WHY is my car hard to start when warm? [Re: moper]
      #5254056 - Tue May 26 2009 05:10 PM

Quote:

I find most of the issues with starting are a result of tuning or lack of cylinder pressure due to wear, or camshaft choice, or camshaft timing. Much more so than percolation issues. JMO.





If you are correct, then why would the car fire up instantly when cold but not start hot? Do poorly tuned cars run well cold???


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MNobody
When Doves Cry


Reged: Feb 27 2005
Loc: Michigan
Re: Exactly WHY is my car hard to start when warm? [Re: Rug_Trucker]
      #5254126 - Tue May 26 2009 05:32 PM

"I have watched hot steamy gasoline boil and dribble into my hot intake many times."


I had the same problem with my 750 Holley on my 318, the bowl's were getting so hot you couldn't touch them up by the carb base. The whole problem was solved with a 1/2" plywood spacer under the carb, the bowl's are almost cool to the touch now and it doesn't sound like coffee brewing in the carb anymore, i do still get a little smoke out of the primaries but no fuel dripping above the throttle plates.

--------------------


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BossRide
super street


Reged: Jan 26 2003
Loc: Southaven, MS
Re: Exactly WHY is my car hard to start when warm? [Re: 71383beep]
      #5258712 - Thu May 28 2009 05:46 PM

Quote:

I

I got a separator from the last swap/show. Now I just need to cut my nice new steel braided carb supply line... and install a return line.




Is this separator to vent gas or fumes back to the tank?

My car had the charcoal canister and some vent tubes that run into a box-thing at the top of the tank. Can I run a separator to that?

How does that work?

--------------------
Happiness is a hood scoop...



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Anonymous
Unregistered



Re: Exactly WHY is my car hard to start when warm? [Re: BossRide]
      #5450544 - Sun Aug 30 2009 10:46 AM

Bump...
My '74 Fury 400 was a hot start and flooding nightmare when I went to a Thermoquad and Edelbrock intake. I swapped out the steel line for an insulated stainless mesh covered fuel line from the mechanical pump to the carb. Of course the composite body on the Thermoquad was designed to eliminate heat soak transfer to the fuel bowls but even with that, the big block generated so much heat that the only cure was to keep the fuel line cool. You not only cook the fuel in the bowls but the fuel gets cooked in the line from the pump to the carb. My only problem now is COLD starting! Always has been a bear... crank for 20 -30 seconds and then runs like cr*p for 4 minutes... IF it even starts.


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