Carb expert needed!!! Part II
Thread Starter
Burning Brakes
Joined: Oct 1999
Posts: 1,047
Likes: 1
From: Arlington Texas
Carb expert needed!!! Part II
Ok, in my previous post:
"I went to start the '69 tonite after a several month period of just sitting (I know, I know, I should have been starting it periodically, but for one reason or another I was unable to) and when I try to start it, gas runs out of the vent tube(?) on the front bowl.See pic:
So I'm guessing the float is stuck; if that is it, how do I unstick it? If that's not it, what is the problem?"
I tried unhooking the fuel line and blowing some compressed air in per another forum members suggestion.
No change.
So, I removed the carb and drained it. After doing that, I could hear the floats moving freely when I rotated the carb, so I reinstalled it.
Still no change.
It leaks in the exact same spot just as badly.
I should add that the carb was professionally rebuilt and then driven 30 or so miles before it had to sit for several months.
Anyway, it would appear that a stuck float is not the problem, does anyone have any suggestions??
Also, the carb is a holly spreadbore, vacuum secondary, 650 cfm
Scott
[Modified by Shrike, 4:22 PM 1/24/2004]
"I went to start the '69 tonite after a several month period of just sitting (I know, I know, I should have been starting it periodically, but for one reason or another I was unable to) and when I try to start it, gas runs out of the vent tube(?) on the front bowl.See pic:
So I'm guessing the float is stuck; if that is it, how do I unstick it? If that's not it, what is the problem?"
I tried unhooking the fuel line and blowing some compressed air in per another forum members suggestion.
No change.
So, I removed the carb and drained it. After doing that, I could hear the floats moving freely when I rotated the carb, so I reinstalled it.
Still no change.
It leaks in the exact same spot just as badly.
I should add that the carb was professionally rebuilt and then driven 30 or so miles before it had to sit for several months.
Anyway, it would appear that a stuck float is not the problem, does anyone have any suggestions??
Also, the carb is a holly spreadbore, vacuum secondary, 650 cfm
Scott
[Modified by Shrike, 4:22 PM 1/24/2004]
Race Director
Joined: Feb 1999
Posts: 19,659
Likes: 34
From: Lenoir City Tennessee
Ci 6, 8 & 10 Veteran
St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12-'13-'14-'15
Re: Carb expert needed!!! Part II (Shrike)
I wonder if the float has a hole in it. This would allow the bowl to keep filling and filling. :confused: I am no carb expert, someone hopefully will chime in that knows a little more than I.
Thread Starter
Burning Brakes
Joined: Oct 1999
Posts: 1,047
Likes: 1
From: Arlington Texas
Re: Carb expert needed!!! Part II (Eddie 70)
Eddie,
I'm kinda wondering that myself. I took the carb back off and put on another one. I guess I'll take it back to the shop on monday and see what they say, it is still under warranty.
Another carb question: I put on another carb, a holley spreadbore, mechanical secondaries, 650 cfm. It runs, but the idle will fluctuate by 500 rpm's or more. For instance, I can run it for 15 minutes with the idle set at 1000 and then shut it off for 10 minutes, restart and the idle is at 1500-1700 rpm. If I set it back down, it will eventually not run because it tries to idle at 300-500 rpm. It's not a choke problem, because it is disconnected. Any help on either of these would be much appreciated.
Scott
I'm kinda wondering that myself. I took the carb back off and put on another one. I guess I'll take it back to the shop on monday and see what they say, it is still under warranty.
Another carb question: I put on another carb, a holley spreadbore, mechanical secondaries, 650 cfm. It runs, but the idle will fluctuate by 500 rpm's or more. For instance, I can run it for 15 minutes with the idle set at 1000 and then shut it off for 10 minutes, restart and the idle is at 1500-1700 rpm. If I set it back down, it will eventually not run because it tries to idle at 300-500 rpm. It's not a choke problem, because it is disconnected. Any help on either of these would be much appreciated.
Scott
Instructor
Joined: Jun 2001
Posts: 231
Likes: 0
From: Cedar City UT
Re: Carb expert needed!!! Part II (Shrike)
You might try taking a soft rubber mallet and lightly percuss the body. Or in other terms smack it a good one. Sounds like a stuck float.
If this does'nt work, looks like you'll have to remove the top and clean out with carb cleaner. LOL
Bob
:smash:
If this does'nt work, looks like you'll have to remove the top and clean out with carb cleaner. LOL
Bob
:smash:
Drifting
Joined: Nov 2003
Posts: 1,874
Likes: 7
From: l In
Re: Carb expert needed!!! Part II (Shrike)
yOU MAY HEAR THE FLOATS MOVING WITH THE CARB OFF, BUT THAT IS NOT THE PROBLEM. yOU PROBLEM IS THAT THE NEEDLE IS STUCK IN THE SEAT, REMOVE IT AND CLEAN IT AND YOU SHOULD BE GOOD TO GO.
Race Director
Joined: Feb 1999
Posts: 16,978
Likes: 7
From: In Dreams There Is Truth Ohio
Re: Carb expert needed!!! Part II (Phil Zell)
yOU MAY HEAR THE FLOATS MOVING WITH THE CARB OFF, BUT THAT IS NOT THE PROBLEM. yOU PROBLEM IS THAT THE NEEDLE IS STUCK IN THE SEAT, REMOVE IT AND CLEAN IT AND YOU SHOULD BE GOOD TO GO.
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