Classic Mustangs (Tech) Technical discussions about the Mustangs of yester-year.

Car starting conundrum

Thread Tools
 
Search this Thread
 
Old Feb 7, 2011 | 08:29 PM
  #11  
musnicki's Avatar
musnicki
Thread Starter
3rd Gear Member
 
Joined: Dec 2007
Posts: 959
From: Bangkok, Thailand
Default

Maybe it's the gas. I ran all summer with no issues.....I move to Hawaii in April. We'll see.
Old Feb 7, 2011 | 09:12 PM
  #12  
MustangFTW
Guest
 
Posts: n/a
Default

watch out for them volcanoes....
Old Feb 7, 2011 | 11:40 PM
  #13  
001mustang's Avatar
001mustang
3rd Gear Member
 
Joined: Aug 2010
Posts: 889
From: tn
Default

Originally Posted by musnicki
Maybe it's the gas. I ran all summer with no issues.....I move to Hawaii in April. We'll see.
un beleivable...........i love hawai aloha
Old Feb 8, 2011 | 01:23 AM
  #14  
tx65coupe's Avatar
tx65coupe
5th Gear Member
 
Joined: Dec 2008
Posts: 4,462
From: Texas
Default

I've been having somewhat similar issues but have an Edelbrock carburetor. If it sits for a few minutes or less, it starts back up easily. If it sits for an hour or longer it starts back up just by bumping the key. When cold after sitting all week, it can be a little stuborn. The biggest issue is from about 15 minutes up to half hour or so. It acts flooded. I'm thinking its heat related too, but my underhood temps are not that hot. I don't have a carb spacer yet, but plan on getting the thinner one Edelbrock offers.
Old Feb 8, 2011 | 09:09 AM
  #15  
boogerschnot's Avatar
boogerschnot
5th Gear Member
 
Joined: Feb 2007
Posts: 2,688
From: Ramona, CA
Default

Hey bud, try backing off your timing a couple of degrees. My car did this same thing when i first rebuilt the engine.. it would start only after stumbling into the start for about 20 seconds with me feathering the gas. Just mark your dizzy position with something, then move it a degree or two (12 to 10 btdc) as an example... Then once you get it set reset your idle and tune with a vaccume gauge for highest vac. That will get you going good. When you get out here give me a call and we will retune your carb to the 10% ethanol crap gas you get in hawaii.
Old Feb 8, 2011 | 12:18 PM
  #16  
musnicki's Avatar
musnicki
Thread Starter
3rd Gear Member
 
Joined: Dec 2007
Posts: 959
From: Bangkok, Thailand
Default

Thank you! Thats if the guys in Hawaii let me take my car out of the in-bound holding yard. It's like driving a race car, I don't know how they'll take it once they start poking around under the hood and I have to get a safety sticker.

James
Old Feb 8, 2011 | 12:31 PM
  #17  
001mustang's Avatar
001mustang
3rd Gear Member
 
Joined: Aug 2010
Posts: 889
From: tn
Default

Originally Posted by tx65coupe
I've been having somewhat similar issues but have an Edelbrock carburetor. If it sits for a few minutes or less, it starts back up easily. If it sits for an hour or longer it starts back up just by bumping the key. When cold after sitting all week, it can be a little stuborn. The biggest issue is from about 15 minutes up to half hour or so. It acts flooded. I'm thinking its heat related too, but my underhood temps are not that hot. I don't have a carb spacer yet, but plan on getting the thinner one Edelbrock offers.
I put thick heat insulator gasket under carb.
May help (watch out for hood clearance); it did not solve the problem.
I figure heat rises and will find a way to vaporize bowl fuel.
In the first few minutes after parking some fuel may boil and find its way into the intake; producing a rich mix upon startup.
After much time all the fuel will vaporize and leave the bowl bone dry. eventually fuel will exit intake and leave you w/ no fuel charge for start up.

Blocking the intake manifold exhaust cross over will remove a heat source from under carb; a good thing.
Attached Thumbnails Car starting conundrum-2181.jpg   Car starting conundrum-edl-7220_w-gasket.jpg   Car starting conundrum-fpp-1262.jpg  
Old Feb 10, 2011 | 05:10 AM
  #18  
tx65coupe's Avatar
tx65coupe
5th Gear Member
 
Joined: Dec 2008
Posts: 4,462
From: Texas
Default

Originally Posted by 001mustang
I put thick heat insulator gasket under carb.
May help (watch out for hood clearance); it did not solve the problem.
I figure heat rises and will find a way to vaporize bowl fuel.
In the first few minutes after parking some fuel may boil and find its way into the intake; producing a rich mix upon startup.
After much time all the fuel will vaporize and leave the bowl bone dry. eventually fuel will exit intake and leave you w/ no fuel charge for start up.

Blocking the intake manifold exhaust cross over will remove a heat source from under carb; a good thing.
Does yours still do this too?

I don't think I have hood clearance for a taller insulator than that 3/8 Edelbrock one.

I believe that my Edelbrock Performer RPM intake doesn't have the exhaust crossover. I have this one.

http://www.summitracing.com/parts/EDL-7121/?rtype=10

Last edited by tx65coupe; Feb 10, 2011 at 05:16 AM.
Old Feb 10, 2011 | 05:15 AM
  #19  
tx65coupe's Avatar
tx65coupe
5th Gear Member
 
Joined: Dec 2008
Posts: 4,462
From: Texas
Default

Sorry for the thread hijack Musnicki. I just thought it all was relevant and might be a similar issue we both have.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
mstahoo
SVT Forums
10
Aug 19, 2021 09:15 PM
ShaneB26154
4.6L (1996-2004 Modular) Mustang
35
Mar 4, 2021 04:05 AM
mirandaandjimmy
4.6L V8 Technical Discussions
20
Nov 16, 2015 08:51 AM
Soldier GT
4.6L (1996-2004 Modular) Mustang
12
Aug 20, 2015 09:42 AM
J.casone400
General Tech
2
Aug 7, 2015 08:40 PM




All times are GMT -5. The time now is 06:20 AM.