4.3 swap has finally begun - Page 51 - JeepForum.com

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post #751 of 1069 Old 01-01-2012, 02:51 PM
leftlanetruckin
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Quote:
Originally Posted by YJames90 View Post
No,,Good idea, thanks
Go back and check the base timing with the wire unplugged. I set Dave's at zero degrees advance, which is what Alldata called for.
You can then set the base idle again, following the long and drawn out procedure in the Alldata
After that, maybe clean the IAC valve and see if that all helps.

Martin


1998 XJ on 37's.JK Rubi axles with chromo shafts and ctm's, 4:1 transfer case, etc etc etc.
2003 Range Rover HSE, 4.4 Quad Cam.
1998 Range Rover with a 6.0 LSx
1994 YJ, 4.3/700R4/OME SOA, etc
Western Star 4900EX 4 axle.
4.3/700r4/new frame buildup (YJ)....
http://www.jeepforum.com/forum/f12/swap-offically-underway-324622/
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post #752 of 1069 Old 01-01-2012, 02:58 PM Thread Starter
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What notch of the 3 notches do I want to be at for the timing?

Quote:
Originally Posted by Poke View Post
Spring Over is not for you.... yet





My 2.5 to 4.3 swap thread
http://www.jeepforum.com/forum/f12/4...begun-1237704/
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post #753 of 1069 Old 01-01-2012, 02:59 PM
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X2 What Leftlane said. Chevy's are pretty sensitive to the timing. It doesn't take much tweak to make a big difference how it acts. You normally set the base timing first, then hook it all back up. Then set the idle speed. Right now its "loading" the trans kinda like a drag racer, makes em run hot and like leftlane said things can get melted if it isn't right. After you got the base timing and idle speed, you can set the "fine-tune" stuff.
.
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post #754 of 1069 Old 01-01-2012, 02:59 PM Thread Starter
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And I have to look up what one is the IAC and how to clean it. But first its time to walk the dog

Quote:
Originally Posted by Poke View Post
Spring Over is not for you.... yet





My 2.5 to 4.3 swap thread
http://www.jeepforum.com/forum/f12/4...begun-1237704/
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post #755 of 1069 Old 01-01-2012, 03:07 PM
oldtime_ironman
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You are turning the dizzy to the left, I hope? That's what retards the timing.
.
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post #756 of 1069 Old 01-01-2012, 03:41 PM
leftlanetruckin
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Set it to zero degree's initially James. Then you can grab an extra COUPLE of degree's if you want or need it.
Alldata should have a good picture of the timing marks etc mate.

Martin

1998 XJ on 37's.JK Rubi axles with chromo shafts and ctm's, 4:1 transfer case, etc etc etc.
2003 Range Rover HSE, 4.4 Quad Cam.
1998 Range Rover with a 6.0 LSx
1994 YJ, 4.3/700R4/OME SOA, etc
Western Star 4900EX 4 axle.
4.3/700r4/new frame buildup (YJ)....
http://www.jeepforum.com/forum/showthread.php?t=324622
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post #757 of 1069 Old 01-01-2012, 03:50 PM Thread Starter
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Quote:
Originally Posted by oldtime_ironman View Post
You are turning the dizzy to the left, I hope? That's what retards the timing.
.
Spinning it clockwise is slowing the idle

Quote:
Originally Posted by Poke View Post
Spring Over is not for you.... yet





My 2.5 to 4.3 swap thread
http://www.jeepforum.com/forum/f12/4...begun-1237704/
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post #758 of 1069 Old 01-01-2012, 04:35 PM
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Spinning it clockwise is slowing the idle
Too far advanced then. I would just start from zero and then do as leftlane says (I don't have the alldata for this particular one).
.
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post #759 of 1069 Old 01-01-2012, 04:42 PM Thread Starter
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Too far advanced then. I would just start from zero and then do as leftlane says (I don't have the alldata for this particular one).
.
So its too far to the left?? I dont know how to fix it. Will read up on it tomorrow

Quote:
Originally Posted by Poke View Post
Spring Over is not for you.... yet





My 2.5 to 4.3 swap thread
http://www.jeepforum.com/forum/f12/4...begun-1237704/
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post #760 of 1069 Old 01-01-2012, 05:04 PM
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So its too far to the left?? I dont know how to fix it. Will read up on it tomorrow
Turn it to the right (clockwise) to slow it.
.
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post #761 of 1069 Old 01-01-2012, 05:40 PM Thread Starter
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Turn it to the right (clockwise) to slow it.
.
Thats what Im doing but its as far as it can go without hitting

Quote:
Originally Posted by Poke View Post
Spring Over is not for you.... yet





My 2.5 to 4.3 swap thread
http://www.jeepforum.com/forum/f12/4...begun-1237704/
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post #762 of 1069 Old 01-01-2012, 06:05 PM Thread Starter
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why does my idle raise up when I tighten the hold down bolt?

Quote:
Originally Posted by Poke View Post
Spring Over is not for you.... yet





My 2.5 to 4.3 swap thread
http://www.jeepforum.com/forum/f12/4...begun-1237704/
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post #763 of 1069 Old 01-01-2012, 06:14 PM
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why does my idle raise up when I tighten the hold down bolt?
The hold down bolt usually bumps things a degree or two because the dizzy gears are spiral kinda like a diff. I used to just *barely* crack the bolt loose so that it needs both hands to turn the dizzy - tended to be more accurate that way.
.
.
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post #764 of 1069 Old 01-01-2012, 06:23 PM Thread Starter
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For something being so simple it sure is confusng

Quote:
Originally Posted by Poke View Post
Spring Over is not for you.... yet





My 2.5 to 4.3 swap thread
http://www.jeepforum.com/forum/f12/4...begun-1237704/
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post #765 of 1069 Old 01-01-2012, 06:26 PM
leftlanetruckin
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Quote:
Originally Posted by oldtime_ironman View Post
The hold down bolt usually bumps things a degree or two because the dizzy gears are spiral kinda like a diff. I used to just *barely* crack the bolt loose so that it needs both hands to turn the dizzy - tended to be more accurate that way.
.
.
This.


Quote:
Originally Posted by YJames90 View Post
For something being so simple it sure is confusng
It is simple James, Just have yo get it in the sweet spot mate
At least we dont have to worry about tone rings etc with these motors!

Martin

1998 XJ on 37's.JK Rubi axles with chromo shafts and ctm's, 4:1 transfer case, etc etc etc.
2003 Range Rover HSE, 4.4 Quad Cam.
1998 Range Rover with a 6.0 LSx
1994 YJ, 4.3/700R4/OME SOA, etc
Western Star 4900EX 4 axle.
4.3/700r4/new frame buildup (YJ)....
http://www.jeepforum.com/forum/showthread.php?t=324622
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