|
Re: My car doesn't want to run when its hot
[Re: fireeng]
#1481189
08/23/13 08:22 PM
08/23/13 08:22 PM
|
Joined: Dec 2007
Posts: 18,157
Mass
DAYCLONA
I Live Here
|
I Live Here
Joined: Dec 2007
Posts: 18,157
Mass
|
Quote:
Quote:
You mentioned it starts to act up at idle, what's happens if you put it to the wood?
Its seems to be able to drive if I give it some fuel but I do seem to think there is a bog or sputter present when it starts to run crappy. Those issues don't seem to be there when it first starts up and is running good.
I have a mopar electronic ignition conversion on it with the chrome box now. It still has the same coil that was on it with the points distributor. (I think that is my old 318 coil but I'm not 100% sure)
IMHO.....time to swap the carb out, even if you have to use an adapter plate just to mount a known "good" running carb, rather than chase ghosts, I'd think if it was ignition oriented it would rear it's head from the initial start up and running senario.....eliminate the thermobog from the picture
Mike
|
|
|
Re: My car doesn't want to run when its hot
[Re: DAYCLONA]
#1481190
08/23/13 10:08 PM
08/23/13 10:08 PM
|
Joined: Sep 2007
Posts: 14,889
up yours
Supercuda
About to go away
|
About to go away
Joined: Sep 2007
Posts: 14,889
up yours
|
Had a coil that would quit when it got hot. Let it cool off and it would work. Not exactly the same issue you have though.
They say there are no such thing as a stupid question.
They say there is always the exception that proves the rule.
Don't be the exception.
|
|
|
Re: My car doesn't want to run when its hot
[Re: fireeng]
#1481191
08/24/13 10:09 AM
08/24/13 10:09 AM
|
Joined: Mar 2008
Posts: 5,746
Ontario, Canada
Dodgem
master
|
master
Joined: Mar 2008
Posts: 5,746
Ontario, Canada
|
Have you tried adjusting the carb idle when it's hot??
sounds like a rich idle condition. floats to high?
carb good and idle screws set exactly the same amount of turns out??
enough idle advance in the dizzy??
Last edited by Dodgem; 08/24/13 02:19 PM.
|
|
|
Re: My car doesn't want to run when its hot
[Re: fireeng]
#1481193
08/24/13 07:23 PM
08/24/13 07:23 PM
|
Joined: Jan 2003
Posts: 15,350
Omaha Ne
TJP
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 15,350
Omaha Ne
|
Quote:
Not really sure how to put in the fuel line pressure gauge on my own.
just tee it into the line as close to the carb as possible . Your condition sounds a lot like vapor lock as the others have said.
if you are running 10% ethanol based fuel it is known to cause these exact symptoms in older vehiclesdue to its lower boiling point . I have seen several cases come through the shop. A few of the vehicles had see through filters and as the condition started happening the level of fuel in the filter would decrease substantially.
Another thing I have had cause it is parts store fuel pumps that are putting out 11-13.5 PSI. I tried several different brands and they were all the same. Switched to an edelbrock and the problem vaporized ( pun intended) So we are Currently using edlebrocks exclusively( Pricey) and have not had any further issues.
I would agree with the others, time to check the fuel pressure cold and hot.
|
|
|
Re: My car doesn't want to run when its hot
[Re: TJP]
#1481194
08/25/13 12:33 PM
08/25/13 12:33 PM
|
Joined: Apr 2003
Posts: 915
near New Haven, CT
fireeng
OP
super stock
|
OP
super stock
Joined: Apr 2003
Posts: 915
near New Haven, CT
|
Guys, thanks for all your ideas and input. I am getting a real mechanic to look at it next weekend.
Just a question on vapor lock, I always thought with vapor lock the car would not start back up when that is happening. My car will start back up, it just doesn't want to idle.
My carb is new this season, built by HARMS, but never adjusted for my car. I am hoping all this is due to some tuning issues in the carb.
My mechanic has my TQ that I used last season. He was looking at it to get familiar with them. (he was a GM guy back in his hot rod days). The car ran ok with that carb on it last season, once we adjusted the metering rods as high up as they would go. Before doing that the carb would bog out off the line. I had just finished the resto last season and only drove the car for more then 30 minutes once last year, that time it ran ok. I am going to get that carb back and throw it on to see if it will run longer then 45 minutes. Then I will know for sure if it's in the carb or not.
2016 Diesel Ram 3500 Mason Dump
1971 Challenger
2013 Jeep Wrangler
1979 Dodge Ram Power Wagon 400 Mini Pumper
My other car is a Fire Truck.
|
|
|
Re: My car doesn't want to run when its hot
[Re: Dodge-N-Shelby]
#1481197
09/06/13 07:38 AM
09/06/13 07:38 AM
|
Joined: Jan 2005
Posts: 3,344
Central TX
roe
master
|
master
Joined: Jan 2005
Posts: 3,344
Central TX
|
I had similar issues before with a 318 with stock points ignition. I ended up swapping in a new parts house dizzy and a new coil at the same time and the problem went away. It had to be either the pickup coil on the dizzy or the coil. Cant say which because I replaced them both at the same time.
Second time I had something similar happening with my current 360, it was a combination of things and I could watch my see through filter start to run dry. And I still dont have it completely fixed, but Id say its about 70% improvement. I had an aluminum intake with no spacer between the carb, so I added a 1/2" 4 hole phenolic spacer. My dizzy wasnt tuned to my combo, which had my timing retarded causing me to run hotter than optimal, so I sent it out to Don at FBO. I replaced my worn/clogged brass radiator for a champion aluminum and installed twin electric fans from an OEM V6 (just preference over mechanical, and I dont remember the car, I just scrounged a JY). I installed a good in-line fuel pressure regulator, and I did a bunch of tuning to my carb with the help of guys here and a lot of reading.
I think the two biggest things that helped my vapor lock were not having my timing so retarded and not having my carb so lean. Eddy 1406's are rediculously lean OOTB. Then I would say the spacer was the next most beneficial.
Still on my to do list are to switch to a eddy fuel pump, and replace my intake manifold gasket and install some metal block off plates for the heat cross over.
Maybe all of these will give you some places to look.
roe
1971 Plymouth Satellite
408/904 8 3/4 3.23 SG
|
|
|
Re: My car doesn't want to run when its hot
[Re: fireeng]
#1481199
09/08/13 11:56 PM
09/08/13 11:56 PM
|
Joined: Apr 2003
Posts: 915
near New Haven, CT
fireeng
OP
super stock
|
OP
super stock
Joined: Apr 2003
Posts: 915
near New Haven, CT
|
Well it seems my problem is in the Carb. I put my old TQ back on and ran the car for 50 minutes with no stalling, no rough idle. Car was running just as good 50 minutes in as it was when I first started it up.
Now to figure out what is wrong with my "nice looking TQ"......
2016 Diesel Ram 3500 Mason Dump
1971 Challenger
2013 Jeep Wrangler
1979 Dodge Ram Power Wagon 400 Mini Pumper
My other car is a Fire Truck.
|
|
|
|
|
.jpg){kind=link}