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  #16  
Old 08-24-2014, 05:35 AM
Alleycat3677 Alleycat3677 is offline
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Funny you should say that. I actually replace the accelerator pump and rubber valve because I thought that was the issue.
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  #17  
Old 08-24-2014, 05:52 AM
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Pull the breather off and look down the carburetor. Move the throttle bracket. Right away you should see fuel squirt into the carburetor. If you don't, there's your problem.
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  #18  
Old 08-24-2014, 06:06 AM
Alleycat3677 Alleycat3677 is offline
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Yup. Two good squirts of fuel. Like I said. Kinda at a loss with this one.
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  #19  
Old 08-24-2014, 08:51 AM
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Sounds like you do not have enough vacuum. There can be several reasons for this including a lack of flatness in the bottom of the carb or in either side of the spacer. First measure your vacuum at idle.
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  #20  
Old 08-24-2014, 09:38 AM
Alleycat3677 Alleycat3677 is offline
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Again. Funny you say that. Just got done putting the vacuum guadge on it. At idle it's reading 10. When I give it gas it jumps to 15. If I'm not mistaken it should read zero until I give her gas. Timing was set with the vacuum disconnected and plugged. What next?????
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  #21  
Old 08-24-2014, 09:53 AM
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That's low. That's very low. Idle should be at least 15. More like 20.

What vacuum did you hook up to? Manifold or ported?
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  #22  
Old 08-24-2014, 09:55 AM
Alleycat3677 Alleycat3677 is offline
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It's hooked into a port on the carb under the accelerator pump.
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  #23  
Old 08-24-2014, 09:56 AM
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That brings up another question, is the distributor hooked up to the right port? Should be the one on the passenger side going sideways.
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  #24  
Old 08-24-2014, 09:58 AM
Alleycat3677 Alleycat3677 is offline
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Your right. That's where it is.
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  #25  
Old 08-24-2014, 10:01 AM
Alleycat3677 Alleycat3677 is offline
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That's the only vacuum line besides the choke tube for heat.
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  #26  
Old 08-24-2014, 10:13 AM
Alex from GA Alex from GA is offline
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Vacuum gauge is connected to manifold vacuum. If you have power brakes there should be a tree behind the carburetor coming straight from the intake manifold. Have you taken a compression check? That's the first thing to do in a tune up. Like 351 said, the vacuum is very low, it needs to be 15 or more at idle with the stock cam.
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  #27  
Old 08-24-2014, 11:16 AM
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Set timing to 12*btc, idle speed to about 650-700, then use your vacuum gauge to tune the mixture. Should be somewhere around 1-1/2 to 2 turns rich. Go for the highest reading.

If that doesn't do it, you've got other problems. A vacuum leak somewhere, or just a worn out motor.
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  #28  
Old 08-24-2014, 01:24 PM
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I think I may just have a wore out engine. I'll drive her til she quits then get a crate 390. Thanks for all the help!!!
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  #29  
Old 08-24-2014, 01:34 PM
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Quote:
Originally Posted by Alleycat3677 View Post
I think I may just have a wore out engine. I'll drive her til she quits then get a crate 390. Thanks for all the help!!!
No, don't give up. Check your compression and double-check your vacuum. There is no use for you to not want to know what the problem is.
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  #30  
Old 08-24-2014, 01:36 PM
Alleycat3677 Alleycat3677 is offline
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Number 8 cylender is reading 65 psi. I don't have the skills to do a rebuild and the time with a 3yr old. So I'll save my pennies and get a crate motor or find a low milage donor. I can easily do an engine swap!!!!! Two days work.
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Old 08-24-2014, 01:36 PM
 
 
 
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