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Another Edelbrock Carb Stumble Question

  • Thread starter Thread starter 65fastback2+2
  • Start date Start date Apr 7, 2005
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krash kendall

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Nov 19, 2004
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Aldergrove, B.C. Canada
Apr 11, 2005
#21
  • Apr 11, 2005
  • #21
On the passenger side you have what looks to be a heater hose wedged under the linkage - could be a problem (mechanically and temperature wise). Also, it looks like your vacuum tee on the rear driver's side of the intake is open at the top (it's hard to tell for sure from the picture).
 

Blown4.6

Founding Member
Aug 19, 2002
351
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Orlando, FL
Apr 11, 2005
#22
  • Apr 11, 2005
  • #22
what kind of manifold vacuum are you pulling? The missing followed by the smell of fuel tips me off that it's electrical in nature. The fuel seems to be getting where it needs to be, but it's not burning.

I'm wathing this thread like a hawk. My 351W is doing about the same thing and I can't figure it out.....IT SUCKS AND IS EMBARASSING!!
 

65fastback2+2

New Member
Aug 4, 2003
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Louisville, KY
Apr 11, 2005
#23
  • Apr 11, 2005
  • #23
krash kendall said:
On the passenger side you have what looks to be a heater hose wedged under the linkage - could be a problem (mechanically and temperature wise). Also, it looks like your vacuum tee on the rear driver's side of the intake is open at the top (it's hard to tell for sure from the picture).
Click to expand...

all the vacuum lines are sealed. that heater hose has always been there....guess it could be a problem, but not with the missing and no power i wouldnt think. the vacuum tee is all capped off with zip-ties sinched around em...after those blowing off like 2 times I figured out how to keep em on
 

65fastback2+2

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Apr 11, 2005
#24
  • Apr 11, 2005
  • #24
Blown4.6 said:
what kind of manifold vacuum are you pulling? The missing followed by the smell of fuel tips me off that it's electrical in nature. The fuel seems to be getting where it needs to be, but it's not burning.

I'm wathing this thread like a hawk. My 351W is doing about the same thing and I can't figure it out.....IT SUCKS AND IS EMBARASSING!!
Click to expand...


yes it is embarassing.....i have a nice electrical system, though the other day this did really start after i washed it, and being as i have a shelby hood scoop some water does get on the motor.....could this have shorted out something? i would think if it did then it wouldnt run at all, but maybe it just slightly shorted it out??? and yes it is SO embarassing, i couldnt race a golf cart light-to-light right now
 

krash kendall

Active Member
Nov 19, 2004
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Aldergrove, B.C. Canada
Apr 11, 2005
#25
  • Apr 11, 2005
  • #25
65fastback2+2 said:
the vacuum tee is all capped off with zip-ties sinched around em...after those blowing off like 2 times I figured out how to keep em on
Click to expand...

Blowing off??? Sounds like you are detonating in the intake. Does the carb barf at you occassionally when starting? Those vacuum caps should be getting SUCKED on there unless you've got a supercharger we can't see.
 

6Stang7

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Jun 1, 2003
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Livermore, CA
Apr 11, 2005
#26
  • Apr 11, 2005
  • #26
65fastback2+2 said:
yes it is embarassing.....i have a nice electrical system, though the other day this did really start after i washed it, and being as i have a shelby hood scoop some water does get on the motor.....could this have shorted out something? i would think if it did then it wouldnt run at all, but maybe it just slightly shorted it out??? and yes it is SO embarassing, i couldnt race a golf cart light-to-light right now
Click to expand...
possibly. if you have a spare spark plug which you know is good, grab it and gap. then start the motor and pull of cylinder 1's plug wire, connect it to your spare, and carefully (if not, you'll get a little present ) ground it to the motor and check the spark. do this for each cylinder one at a time and tell me what you see. try to get it to stumble on each cylinder as you test it.
 

6Stang7

New Member
Jun 1, 2003
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Livermore, CA
Apr 11, 2005
#27
  • Apr 11, 2005
  • #27
krash kendall said:
Blowing off??? Sounds like you are detonating in the intake. Does the carb barf at you occassionally when starting? Those vacuum caps should be getting SUCKED on there unless you've got a supercharger we can't see.
Click to expand...
exactly. maybe we have a erratic timing issue here.
 

65fastback2+2

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Aug 4, 2003
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Louisville, KY
Apr 11, 2005
#28
  • Apr 11, 2005
  • #28
6Stang7 said:
exactly. maybe we have a erratic timing issue here.
Click to expand...


they would only blow off when you turn it off, not when running
 

65fastback2+2

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Aug 4, 2003
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Louisville, KY
Apr 11, 2005
#29
  • Apr 11, 2005
  • #29
6Stang7 said:
possibly. if you have a spare spark plug which you know is good, grab it and gap. then start the motor and pull of cylinder 1's plug wire, connect it to your spare, and carefully (if not, you'll get a little present ) ground it to the motor and check the spark. do this for each cylinder one at a time and tell me what you see. try to get it to stumble on each cylinder as you test it.
Click to expand...

is there anyway to use a voltage meter to test the same thing? i just put all new spark plugs in
 

6Stang7

New Member
Jun 1, 2003
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Livermore, CA
Apr 11, 2005
#30
  • Apr 11, 2005
  • #30
65fastback2+2 said:
they would only blow off when you turn it off, not when running
Click to expand...
ahhh, so your car would backfire every time you shut it off?
 

65fastback2+2

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Aug 4, 2003
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Louisville, KY
Apr 11, 2005
#31
  • Apr 11, 2005
  • #31
6Stang7 said:
ahhh, so your car would backfire every time you shut it off?
Click to expand...

not really, i think it was turned off 20 times before this happened once....ronstang was with me and said it was normal
 

6Stang7

New Member
Jun 1, 2003
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Livermore, CA
Apr 11, 2005
#32
  • Apr 11, 2005
  • #32
65fastback2+2 said:
is there anyway to use a voltage meter to test the same thing? i just put all new spark plugs in
Click to expand...
well, you probably could use a volt meter to test this, but i have no clue what you should read there. i just wanna know what color spark you are seeing, plus to see if one cylinder or more is missing every now and then.
 

65fastback2+2

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Aug 4, 2003
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Louisville, KY
Apr 11, 2005
#33
  • Apr 11, 2005
  • #33
6Stang7 said:
well, you probably could use a volt meter to test this, but i have no clue what you should read there. i just wanna know what color spark you are seeing, plus to see if one cylinder or more is missing every now and then.
Click to expand...


i gotta buddy gonna rebuild the carb for me at the end of this week for like $25, if that doesnt fix it i will try this....
 

jikelly

20+ Year Stangneter
Jul 9, 2003
872
53
99
Lubbock Tx
Feb 19, 2007
#34
  • Feb 19, 2007
  • #34
edelbrock carb stuff. Bump
 
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