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Unread 06-27-2009, 06:43 PM   #1
poppatello
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Timing Question...

Well, I just bought my timing light and about to do the nutter by-pass. I wanted to check and see where the timing was currently at before I did the by-pass. The timing is all over the place. It moves from 15 to about 21 . Is that normal for it to move like that during idle? Will the nutter by-pass take care of this part as well or do I have another problem internally? The motor is a 150 but only has 33,000 on it.

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Sometimes it a good idea to pull a vacuum hose before the wife rides in it--you can tell her you need a new ____ and once you get your new ____ you can reconnect the hose. :)


84 Cj 7 w/ 4-Banger, 4.5" BDS lift, 1/2 Trans Drop, Twin Stick, 32" Tire, Front Aussie Locker, No Sound System Yet, No Armor, Warn 8274 Not Installed, Webber Carb Upgrade, Luckycheese Ing. Upgrade...
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Unread 06-27-2009, 06:47 PM   #2
berserker
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If your Jeep doesn't idle well, that fluctuation in timing is typical. I'm not sure if it will help, but you might try disconnecting your vacuum advance hose from the distributor (with the engine off), then fire it up and check the timing. Make sure you plug the vacuum line you when you disconnect it from the distributor.
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Unread 06-27-2009, 06:53 PM   #3
FLBOY
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YEP, Do that first.Then let it come to a full idle.
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Unread 06-27-2009, 06:58 PM   #4
poppatello
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I did that, but only plugged it at the carb, do I have to plug the distributor too?
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Quote:
Originally Posted by berserker View Post

Sometimes it a good idea to pull a vacuum hose before the wife rides in it--you can tell her you need a new ____ and once you get your new ____ you can reconnect the hose. :)


84 Cj 7 w/ 4-Banger, 4.5" BDS lift, 1/2 Trans Drop, Twin Stick, 32" Tire, Front Aussie Locker, No Sound System Yet, No Armor, Warn 8274 Not Installed, Webber Carb Upgrade, Luckycheese Ing. Upgrade...
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Unread 06-27-2009, 07:04 PM   #5
poppatello
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well I just plugged the distributor hose just for the hell of it and no change. My concern is if I do the nutter by-pass is how will I time it to 8 degrees?
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Quote:
Originally Posted by berserker View Post

Sometimes it a good idea to pull a vacuum hose before the wife rides in it--you can tell her you need a new ____ and once you get your new ____ you can reconnect the hose. :)


84 Cj 7 w/ 4-Banger, 4.5" BDS lift, 1/2 Trans Drop, Twin Stick, 32" Tire, Front Aussie Locker, No Sound System Yet, No Armor, Warn 8274 Not Installed, Webber Carb Upgrade, Luckycheese Ing. Upgrade...
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Unread 06-27-2009, 08:07 PM   #6
berserker
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You might try and set your idle a little higher--just enough to smooth it out.
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Unread 06-27-2009, 08:10 PM   #7
poppatello
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well, I proceeded to do the nutter by-pass and while I was laying the new complete wires from ignition module to distributor, I found three open vacuum lines that run to the vacuum switches on the back fire wall! I would assume this would be the culprit of my timing been erratic...
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Quote:
Originally Posted by berserker View Post

Sometimes it a good idea to pull a vacuum hose before the wife rides in it--you can tell her you need a new ____ and once you get your new ____ you can reconnect the hose. :)


84 Cj 7 w/ 4-Banger, 4.5" BDS lift, 1/2 Trans Drop, Twin Stick, 32" Tire, Front Aussie Locker, No Sound System Yet, No Armor, Warn 8274 Not Installed, Webber Carb Upgrade, Luckycheese Ing. Upgrade...
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Unread 06-27-2009, 08:30 PM   #8
berserker
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Quote:
I found three open vacuum lines that run to the vacuum switches on the back fire wall!
Only 3?
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Unread 06-28-2009, 08:04 AM   #9
poppatello
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Quote:
Originally Posted by berserker View Post
Only 3?


well I replaced the carb like two summers ago and thought that I had removed or plugged all the lines that were no longer in used. I guess I forgot a couple. That could explain my low mpg huh?
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Quote:
Originally Posted by berserker View Post

Sometimes it a good idea to pull a vacuum hose before the wife rides in it--you can tell her you need a new ____ and once you get your new ____ you can reconnect the hose. :)


84 Cj 7 w/ 4-Banger, 4.5" BDS lift, 1/2 Trans Drop, Twin Stick, 32" Tire, Front Aussie Locker, No Sound System Yet, No Armor, Warn 8274 Not Installed, Webber Carb Upgrade, Luckycheese Ing. Upgrade...
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Unread 06-28-2009, 12:35 PM   #10
berserker
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Quote:
I replaced the carb like two summers ago and thought that I had removed or plugged all the lines that were no longer in used. I guess I forgot a couple.
It happens--usually it costs a bunch of money in parts you didn't need to figure out a vacuum hose was off.

Sometimes it a good idea to pull a vacuum hose before the wife rides in it--you can tell her you need a new ____ and once you get your new ____ you can reconnect the hose.
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