Hi, Sorry to ask so mant questions but we are having problems. My question is what is the correct timing for a 67 327/350 hp at idle. thanks for any help.
chuck # 30460 smcgettric@aol.com
chuck # 30460 smcgettric@aol.com
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Re: Problems with Timing
According to a Chilton's guide, its 10 degrees btdc at 700 rpm. -
Re: Problems with Timing
According to a Chilton's guide, its 10 degrees btdc at 700 rpm.Comment
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Re: Problems with Timing
remember that the 10 degree figure is at slow idle with the vacuum advance disconnectedComment
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Re: Problems with Timing
remember that the 10 degree figure is at slow idle with the vacuum advance disconnectedComment
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Re: Problems with Timing
Also remember, timing ASSUMES the distributor is installed correctly and is not a tooth or two off on insertion....Comment
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Re: Problems with Timing
Also remember, timing ASSUMES the distributor is installed correctly and is not a tooth or two off on insertion....Comment
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Re: Problems with Timing
Would being a tooth or two off matter?
Aren't you still setting the timing off of number 1 cylinder?Comment
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Re: Problems with Timing
Would being a tooth or two off matter?
Aren't you still setting the timing off of number 1 cylinder?Comment
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Re: Problems with Timing
Yep, but when you're off a tooth or two how do/did you move the absolute timing reference marks sitting next to the balancer to compensate for the RELATIVE change made at the distributor?
Very common problem. Distributor gets pulled and replaced but stuck in incorrectly. Now car can be timed, BUT will not agree with fixed timing reference mark/scale. Like Farenheit and Centigrade, each scale has a zero degree point but the absolute temperature isn't the same. Where water turns to ice is an absolute regardless of F/C....Comment
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Re: Problems with Timing
Yep, but when you're off a tooth or two how do/did you move the absolute timing reference marks sitting next to the balancer to compensate for the RELATIVE change made at the distributor?
Very common problem. Distributor gets pulled and replaced but stuck in incorrectly. Now car can be timed, BUT will not agree with fixed timing reference mark/scale. Like Farenheit and Centigrade, each scale has a zero degree point but the absolute temperature isn't the same. Where water turns to ice is an absolute regardless of F/C....Comment
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Re: Problems with Timing
Hello Jack; I'm confused. I've pulled a number of distributors. Regardless of the orientation of the distributor body, the rotor will spin and pick up #1 cylinder, and the rest of the firing order (8,4,3,6,5,7,2). The "juice" for the timing light comes off of #1 cylinder. The mark on the balancer is for TDC for #1 cylinder. It shouldn't matter if the distributor is installed in any orientation, or, for that matter, if the plug wires are in the "correct" holes in the distributor cap (as long as they are in the correct firing order). I've always thought that the distributor could be advanced and retarded with the distributor body in any orientation. Chuck1963 Corvette Conv. 327/360 NCRS Top Flight
2006 Corvette Conv. Velocity Yellow NCRS Top Flight
1956 Chevy Sedan. 350/4 Speed Hot RodComment
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Re: Problems with Timing
Hello Jack; I'm confused. I've pulled a number of distributors. Regardless of the orientation of the distributor body, the rotor will spin and pick up #1 cylinder, and the rest of the firing order (8,4,3,6,5,7,2). The "juice" for the timing light comes off of #1 cylinder. The mark on the balancer is for TDC for #1 cylinder. It shouldn't matter if the distributor is installed in any orientation, or, for that matter, if the plug wires are in the "correct" holes in the distributor cap (as long as they are in the correct firing order). I've always thought that the distributor could be advanced and retarded with the distributor body in any orientation. Chuck1963 Corvette Conv. 327/360 NCRS Top Flight
2006 Corvette Conv. Velocity Yellow NCRS Top Flight
1956 Chevy Sedan. 350/4 Speed Hot RodComment
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Check/Installation of Distributor?
Would someone propose a way/method/reference we can all use to check/properly install our distributors so we can all talk about timing in the same light regardless of who's right on the effect of being off by a tooth or two? While that relative offset and its implications are interesting and appropriate for this DB, I am interested also in "how to check proper alignment/installation of my distributor". Thanks.
Tony
PS Please distinguish, if necessary, between SB and BB.TonyComment
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Check/Installation of Distributor?
Would someone propose a way/method/reference we can all use to check/properly install our distributors so we can all talk about timing in the same light regardless of who's right on the effect of being off by a tooth or two? While that relative offset and its implications are interesting and appropriate for this DB, I am interested also in "how to check proper alignment/installation of my distributor". Thanks.
Tony
PS Please distinguish, if necessary, between SB and BB.TonyComment
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