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#1 |
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Location: Fayetteville Arkansas
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Re: 1977 Chevy C10 known as SharkBite
Yea, you need to put a timing gun on it or you will be going around in circles. Sounds like you have it adjusted OK, but timing will affect start up when cold and when hot. If your timing is off a bit it may crank hard when warm ect...I would not mess with the carb other than the idle screw, they are pretty good right out of the box, you can mess one up easily if you are not familiar with the procedure.
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Scott 87 Chevy 2WD SWB, 88 4x4 LWB http://67-72chevytrucks.com/vboard/s...d.php?t=610652 |
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#2 | |
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Re: 1977 Chevy C10 known as SharkBite
Quote:
So far I've really only adjusted the idle screw as that's what I'm comfortable doing. Yeah I really am not too familiar with carbs and i rather not mess one up personally ![]()
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Korwin 77 C10 Silverado Sharkbite LWB Build 67 Chevy C10 Frame Off 06 Dodge Magnum 2.7v6 aka swag wag! 2010 Honda Accord 2.4I4 DD aka Liquid Metal |
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#3 | |
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Re: 1977 Chevy C10 known as SharkBite
Quote:
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#4 | |
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Re: 1977 Chevy C10 known as SharkBite
Quote:
I have the timing gun at my house that's a buddies but my only issue and maybe I need to search it but I don't know what correct timing is on a chevy 350.
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Korwin 77 C10 Silverado Sharkbite LWB Build 67 Chevy C10 Frame Off 06 Dodge Magnum 2.7v6 aka swag wag! 2010 Honda Accord 2.4I4 DD aka Liquid Metal |
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#5 |
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Re: 1977 Chevy C10 known as SharkBite
Start by setting it at 8 deg, after the engine is warm. Unplug the vac to the advance and plug it up before timing. Then go back and set idle. You can tweak it a little after that.
If you have a piece of chalk, you can put some in the line makes it a bit easier to see. When you were talking about the idle going up when you turned the dizzy, that is when you are advancing the timing. retard it and the idle will go down.
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#6 |
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Re: 1977 Chevy C10 known as SharkBite
Korwin, you may know most of this, but here is a great video on timing. It is a little long but full of good info. You can also clearly see where he has the vac advance hooked up on the Edelbrock carb.
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Scott 87 Chevy 2WD SWB, 88 4x4 LWB http://67-72chevytrucks.com/vboard/s...d.php?t=610652 Last edited by Sodell; 10-28-2013 at 05:16 PM. |
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#7 |
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Re: 1977 Chevy C10 known as SharkBite
Sodell is correct with 8 degrees BTDC, or at least that's what it says in a 1972 service manual for a 350 auto. I just happen to have a scanned copy of that manual at work
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#8 | |||
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Re: 1977 Chevy C10 known as SharkBite
Quote:
Quote:
It's funny about the video I'm not even lying I had just watched it about 5 minutes ago literally because it looked good and indeed it was very informative and knowledgeable for me. Quote:
If I haven't ever told y'all enough thanks for all the help!! You guys rock!!!
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Korwin 77 C10 Silverado Sharkbite LWB Build 67 Chevy C10 Frame Off 06 Dodge Magnum 2.7v6 aka swag wag! 2010 Honda Accord 2.4I4 DD aka Liquid Metal |
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#9 |
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Re: 1977 Chevy C10 known as SharkBite
Nope, definitely not generic...
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#10 |
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Re: 1977 Chevy C10 known as SharkBite
![]() okay so I have another question there's a intake manifold vacuum that's on the intake if I plug that up will it hurt the truck any? or is it just something that I can plug? I was going to plug it back up because that's how it was originally. I understand the fact that it might not matter but just curious.
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Korwin 77 C10 Silverado Sharkbite LWB Build 67 Chevy C10 Frame Off 06 Dodge Magnum 2.7v6 aka swag wag! 2010 Honda Accord 2.4I4 DD aka Liquid Metal |
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#11 |
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Re: 1977 Chevy C10 known as SharkBite
You're better off plugging it if you aren't using it for a vacuum source, like for brakes. If you leave it open, it becomes a huge vacuum leak... more problems.
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#12 |
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Re: 1977 Chevy C10 known as SharkBite
Okay so correct me if I'm right or wrong should I have the truck warmed up to try and adjust my timing or can I just crank it up get it idling normal and then start setting the timing?
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Korwin 77 C10 Silverado Sharkbite LWB Build 67 Chevy C10 Frame Off 06 Dodge Magnum 2.7v6 aka swag wag! 2010 Honda Accord 2.4I4 DD aka Liquid Metal |
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#13 |
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Re: 1977 Chevy C10 known as SharkBite
It has to be warmed up...just drive it around for a bit before
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#14 |
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Re: 1977 Chevy C10 known as SharkBite
Thanks Scott!!
Well my buddy 67 c10 guy is coming over and were going to try and get this timing jazz set so wish me luck and I'll report back later
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Korwin 77 C10 Silverado Sharkbite LWB Build 67 Chevy C10 Frame Off 06 Dodge Magnum 2.7v6 aka swag wag! 2010 Honda Accord 2.4I4 DD aka Liquid Metal |
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#15 |
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Re: 1977 Chevy C10 known as SharkBite
So I'm glad I'm finding this out now apparently the PO didn't know really about timing cause the timing has always been at 0 so me and 67 c10 guy are going to fix that now.
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Korwin 77 C10 Silverado Sharkbite LWB Build 67 Chevy C10 Frame Off 06 Dodge Magnum 2.7v6 aka swag wag! 2010 Honda Accord 2.4I4 DD aka Liquid Metal |
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#16 |
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Re: 1977 Chevy C10 known as SharkBite
So the truck is running beautifully and better than EVER!!! The PO apparently had no idea what they were doing it was ridiculous they were 1 tooth counterclockwise off and they were running at least 20 degrees advance is what we guess they also had scratched into the balancer what they thought might have been the correct line, so that's solved so the truck just loves sitting at 0 tdc so that's what we're going to stay with tomorrow if I can I'll get some test runs in
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Korwin 77 C10 Silverado Sharkbite LWB Build 67 Chevy C10 Frame Off 06 Dodge Magnum 2.7v6 aka swag wag! 2010 Honda Accord 2.4I4 DD aka Liquid Metal |
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#17 |
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Re: 1977 Chevy C10 known as SharkBite
Interesting. At least you've got it figured out. I'd be all about replacing that balancer the next time you have to take it off. Assuming that scratch isn't in the correct spot. If the balancer is marked correctly, then I'd look at replacing the timing tab or timing cover if the tab is permanently attached.
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#18 |
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Re: 1977 Chevy C10 known as SharkBite
Yeah it was advanced soooo much that after moving it a tooth and advancing it more is when we found it but yeah that's going to be some probably replaced in the future but the mark on the balancer is clearly visible.
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Korwin 77 C10 Silverado Sharkbite LWB Build 67 Chevy C10 Frame Off 06 Dodge Magnum 2.7v6 aka swag wag! 2010 Honda Accord 2.4I4 DD aka Liquid Metal |
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#19 |
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Re: 1977 Chevy C10 known as SharkBite
Okay so need help once again under an attempt at hard acceleration it kind of bogs and wants to die then seems to do a backfire through the carb any suggestion?
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Korwin 77 C10 Silverado Sharkbite LWB Build 67 Chevy C10 Frame Off 06 Dodge Magnum 2.7v6 aka swag wag! 2010 Honda Accord 2.4I4 DD aka Liquid Metal |
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#20 |
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Re: 1977 Chevy C10 known as SharkBite
Your timing is still probably off.
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#21 |
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Re: 1977 Chevy C10 known as SharkBite
Well at least I'll be good at it when I'm done ![]() What I'm planning to do is something I failed to do is find tdc and go from there so wish me luck!
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Korwin 77 C10 Silverado Sharkbite LWB Build 67 Chevy C10 Frame Off 06 Dodge Magnum 2.7v6 aka swag wag! 2010 Honda Accord 2.4I4 DD aka Liquid Metal |
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#22 |
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Re: 1977 Chevy C10 known as SharkBite
I never told y'all the big surprise! Well everyone since y'all practically are my family y'all should know too........I'm going to be getting married that's the big surprise!
![]() Which comes up to my next point due to a wedding needing to be paid for money will be a HUGE factor now, so much may not get done but I'll try to do small little projects to keep me busy and keep updates coming. Also I know y'all might call me crazy now, but with all this timing being off and everything and the source of the problem being unknown I'm going to tear the motor out and rebuild it for the most part from the ground up so that I know it's done correctly and I won't have to face these issues later on, so hopefully tonight I can get 67 c10 guy over to help me and the weather clear up and we'll pull the motor tonight and maybe start a little bit of work on it.
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Korwin 77 C10 Silverado Sharkbite LWB Build 67 Chevy C10 Frame Off 06 Dodge Magnum 2.7v6 aka swag wag! 2010 Honda Accord 2.4I4 DD aka Liquid Metal |
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#23 |
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Re: 1977 Chevy C10 known as SharkBite
Backfiring through the carb means your timing is too advanced.
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#24 |
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Re: 1977 Chevy C10 known as SharkBite
But I'm a 0 degrees advance timing so how can I be too advanced?
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Korwin 77 C10 Silverado Sharkbite LWB Build 67 Chevy C10 Frame Off 06 Dodge Magnum 2.7v6 aka swag wag! 2010 Honda Accord 2.4I4 DD aka Liquid Metal |
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#25 |
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Re: 1977 Chevy C10 known as SharkBite
Congrats on the engagement!
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-Duane C/10 Club Texas member 1971 Chevy C10 "Brutus" SWB Fleetside 2016 6.0L (L96) 6L90E (driver/project) 1965 Pontiac GTO "Royal Goat" 400/TH400 w/AC (my baby) |
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