Set Timing Using Vacuum Gauge yes or no
#1
Posted 24 December 2007 - 07:10 PM
Class is in:
1. Now, would this be more accurate in combination w/a timing light.
2. What is the best desired vacuum for a 258 CI engine?
3. Would you be better off setting your engine to the specific vacuum instead of what the book says (i.e using the marks on the flywheel).
'48 Willys; '74CJ5; '80CJ7; '84 CJ8; '86 CJ7
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#2
Posted 26 December 2007 - 07:21 AM
If you don't fight for the trails, there won't be any trails to fight for.
What you get by achieving your goals is not as important as what you become by achieving your goals.
Zig Ziglar
"War is an ugly thing, but not the ugliest of things. The decayed and degraded state of moral and patriotic feeling that thinks that nothing is worth war is much worse. The person who has nothing for which he is willing to fight, nothing which is more important than his own personal safety, is a miserable creature and has no chance of being free unless made and kept so by the exertions of better men than himself." ....
John Stuart Mill
#3
Posted 26 December 2007 - 02:21 PM
#4
Posted 26 December 2007 - 04:41 PM
Rollbar, on Dec 24 2007, 07:10 PM, said:
3. Would you be better off setting your engine to the specific vacuum instead of what the book says (i.e using the marks on the flywheel).
So, what about #2, 3.
JeepinIan, on Dec 26 2007, 07:21 AM, said:
Ya, I to usually do that also Ian & it helps get it close. I was just wondering about #2, 3 to see if there were specifics.
'48 Willys; '74CJ5; '80CJ7; '84 CJ8; '86 CJ7
*Who Needs A Stinking Manual When You Have A Fat Wallet For Tech Support!*
*What man is a man who does not make the world better*
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#5
Posted 26 December 2007 - 07:36 PM
That's why there are timing marks. Otherwise everyone would use a vacuum gauge
If you don't fight for the trails, there won't be any trails to fight for.
What you get by achieving your goals is not as important as what you become by achieving your goals.
Zig Ziglar
"War is an ugly thing, but not the ugliest of things. The decayed and degraded state of moral and patriotic feeling that thinks that nothing is worth war is much worse. The person who has nothing for which he is willing to fight, nothing which is more important than his own personal safety, is a miserable creature and has no chance of being free unless made and kept so by the exertions of better men than himself." ....
John Stuart Mill
#6
Posted 26 December 2007 - 08:24 PM
all timing marks are adequate not actual. all fuel is not the same.
so for the best performance with the acquired fuel do it by ear and make sure it cranks over easily for every day use.
#7
Posted 26 December 2007 - 08:39 PM
TranyDoctor, on Dec 26 2007, 08:24 PM, said:
like tranny fluid
P.S. Ian, I should have specified with great specificity, stock engine/config w/a carter 2bbl. I for got what I was pull for vacuum (18-20" if memory serves), my gauge is down South. I use to run a vacuum gauge/meter in my old car I had @ high school, I raced a lot. :sneak:
'48 Willys; '74CJ5; '80CJ7; '84 CJ8; '86 CJ7
*Who Needs A Stinking Manual When You Have A Fat Wallet For Tech Support!*
*What man is a man who does not make the world better*
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#8
Posted 26 December 2007 - 08:49 PM
Rollbar, on Dec 26 2007, 08:39 PM, said:
keeps me roll-in-roll-in-roll-in rahide
Rollbar, on Dec 26 2007, 08:39 PM, said:
18-20 is great for idle, but what happens with throttle
#9
Posted 26 December 2007 - 09:02 PM
TranyDoctor, on Dec 26 2007, 08:49 PM, said:
(If memory serves, or the gauge drops to....) but, I'm thinking it drops to zero when I punch it by hand @ the linkage. I have to get it up here & check it but the wife wouldn't know where to look.
'48 Willys; '74CJ5; '80CJ7; '84 CJ8; '86 CJ7
*Who Needs A Stinking Manual When You Have A Fat Wallet For Tech Support!*
*What man is a man who does not make the world better*
Support the Central Florida Bible Camp for kids
#10
Posted 26 December 2007 - 09:12 PM
#11
Posted 26 December 2007 - 10:33 PM
If you don't fight for the trails, there won't be any trails to fight for.
What you get by achieving your goals is not as important as what you become by achieving your goals.
Zig Ziglar
"War is an ugly thing, but not the ugliest of things. The decayed and degraded state of moral and patriotic feeling that thinks that nothing is worth war is much worse. The person who has nothing for which he is willing to fight, nothing which is more important than his own personal safety, is a miserable creature and has no chance of being free unless made and kept so by the exertions of better men than himself." ....
John Stuart Mill
#12
Posted 26 December 2007 - 10:39 PM
#13
Posted 26 December 2007 - 10:42 PM
P.S. Thanks guys
'48 Willys; '74CJ5; '80CJ7; '84 CJ8; '86 CJ7
*Who Needs A Stinking Manual When You Have A Fat Wallet For Tech Support!*
*What man is a man who does not make the world better*
Support the Central Florida Bible Camp for kids