How to - Nutter Bypass - Page 6 - JeepForum.com

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post #76 of 434 Old 04-03-2009, 05:35 AM
Mike Romain
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1986 CJ7 
 
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Quote:
Originally Posted by ET48 View Post
Well,
I got finished with the jeep around 9:00pm and just now are getting around the laptop. The bypass went well and smooth. Basically just two wires to run for me, and adjust the timing and carb. I took it for a short test drive and it made alot of difference between 2,000rpm and 4,000rpm!!! I was doing burnouts all over the place I have yet to get the adjustment perfect on the carb but it seems to run really well. Everytime I floor it, it will cutout and pick right up. I am gonna run the jeep to work and pull the plugs to see how they look. My guess is that I am running a little rich right now. Thanks for the info and it really helped.
Cool for a fast 'dead spot' test, unplug the EGR valve and block it's line. Lots of them will stumble after the Nutter with the EGR still working. Mine is like that so I just plugged the EGR back in come emissions time.


Mike
86/00 CJ7 Laredo, 33x9.5 BFG AT's, 'glass nose to tail in '00, 'New' frame,wires and plumbing in '09. Carter BBD Carbed 4.0 HO in '10.
89 YJ Renegade. BBD Carbed 4.0 HO. Locked front and rear with 33x9.5 BFG AT's
Some Canadian Bush Jeep Runs and Build Photos: http://mikeromainjeeptrips.shutterfly.com (10 new albums added Sept 16/10)
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post #77 of 434 Old 04-03-2009, 10:15 AM
ET48
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Quote:
Originally Posted by Mike Romain View Post
Cool for a fast 'dead spot' test, unplug the EGR valve and block it's line. Lots of them will stumble after the Nutter with the EGR still working. Mine is like that so I just plugged the EGR back in come emissions time.
I made a EGR valve block off plate that bolts to the manifold to eliminate the EGR years ago. Do I need to take the EGR line from the intake manifold to the exhaust manifold off and plug it?

ET48
1986 CJ-7 LAREDO, 4.2L, 5 speed, 3.31 Gears, D30, D44, 2.5" ProComp lift, 3" BL, 33" TSLs.
1998 TJ SAHARA, 4.0L, 5 speed, 4.11 Gears, D30 (Aussie Locked), Ford 8.8, 4.5" Custom LA, XRC8, AA SYE, TW DS, ZJ tie-rod, Full-Traction front adj. track bar, 35" KM1s.
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post #78 of 434 Old 04-03-2009, 01:04 PM
Mike Romain
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Quote:
Originally Posted by ET48 View Post
I made a EGR valve block off plate that bolts to the manifold to eliminate the EGR years ago. Do I need to take the EGR line from the intake manifold to the exhaust manifold off and plug it?
No, the issue was with the vacuum bounce I think when the EGR activates.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG AT's, 'glass nose to tail in '00, 'New' frame,wires and plumbing in '09. Carter BBD Carbed 4.0 HO in '10.
89 YJ Renegade. BBD Carbed 4.0 HO. Locked front and rear with 33x9.5 BFG AT's
Some Canadian Bush Jeep Runs and Build Photos: http://mikeromainjeeptrips.shutterfly.com (10 new albums added Sept 16/10)
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post #79 of 434 Old 04-03-2009, 01:35 PM
Tompatt
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dude. THANK YOU. i got a timing light and i never knew how to time... but it looks easy.. ill be trying it soon.

Thomas
-1987 YJ
Jeep Build
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post #80 of 434 Old 04-26-2009, 05:17 AM
Mike Romain
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Quote:
Originally Posted by jfite View Post
Hey with the stepper motor off, how do you adjust the pins? I'm a noob! Thanks.
Here, John did a great write up on it in this thread:

http://www.jeepforum.com/forum/showt...84#post7072384

Mike
86/00 CJ7 Laredo, 33x9.5 BFG AT's, 'glass nose to tail in '00, 'New' frame,wires and plumbing in '09. Carter BBD Carbed 4.0 HO in '10.
89 YJ Renegade. BBD Carbed 4.0 HO. Locked front and rear with 33x9.5 BFG AT's
Some Canadian Bush Jeep Runs and Build Photos: http://mikeromainjeeptrips.shutterfly.com (10 new albums added Sept 16/10)
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post #81 of 434 Old 05-05-2009, 07:20 AM
greenmanalishi
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do you think i can find a mechanic or somebody to do this for me?
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post #82 of 434 Old 05-05-2009, 07:39 AM
Mike Romain
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Quote:
Originally Posted by greenmanalishi View Post
do you think i can find a mechanic or somebody to do this for me?
Not likely. It is technically illegal to remove emissions equipment, no matter it can still pass the emissions sniffer and gets better mileage...

Mike
86/00 CJ7 Laredo, 33x9.5 BFG AT's, 'glass nose to tail in '00, 'New' frame,wires and plumbing in '09. Carter BBD Carbed 4.0 HO in '10.
89 YJ Renegade. BBD Carbed 4.0 HO. Locked front and rear with 33x9.5 BFG AT's
Some Canadian Bush Jeep Runs and Build Photos: http://mikeromainjeeptrips.shutterfly.com (10 new albums added Sept 16/10)
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post #83 of 434 Old 05-05-2009, 07:30 PM
Surf2679
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Setting timing

Do I need to discconect vaccum advance from distributor before setting timing or is timing set without any disconnections..
Thanks
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post #84 of 434 Old 05-05-2009, 07:34 PM
Tompatt
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Quote:
Originally Posted by Surf2679 View Post
Do I need to discconect vaccum advance from distributor before setting timing or is timing set without any disconnections..
Thanks
im pretty sure its disconnect the vaccum line going to the dist and plug it.. then time.

Thomas
-1987 YJ
Jeep Build
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post #85 of 434 Old 05-06-2009, 04:54 AM
Mike Romain
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Quote:
Originally Posted by Surf2679 View Post
Do I need to discconect vaccum advance from distributor before setting timing or is timing set without any disconnections..
Thanks
You disconnect it and block it and you also need to change it's source to ported or over to the nipple on the valve cover side of the BBD.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG AT's, 'glass nose to tail in '00, 'New' frame,wires and plumbing in '09. Carter BBD Carbed 4.0 HO in '10.
89 YJ Renegade. BBD Carbed 4.0 HO. Locked front and rear with 33x9.5 BFG AT's
Some Canadian Bush Jeep Runs and Build Photos: http://mikeromainjeeptrips.shutterfly.com (10 new albums added Sept 16/10)
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post #86 of 434 Old 05-06-2009, 06:57 AM
Surf2679
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[QUOTE]You disconnect it and block it and you also need to change it's source to ported or over to the nipple on the valve cover side of the BBD.
__________________/QUOTE]

What do you mean by ported? and it is already connected to the valve cover side of the BBD from the factory. Plse explain.

Thanks
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post #87 of 434 Old 05-06-2009, 11:33 AM
Mike Romain
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[QUOTE=Surf2679;7148539]
Quote:
You disconnect it and block it and you also need to change it's source to ported or over to the nipple on the valve cover side of the BBD.
__________________/QUOTE]

What do you mean by ported? and it is already connected to the valve cover side of the BBD from the factory. Plse explain.

Thanks
Stock, the vacuum to the distributor come from a diverter valve that mixes manifold vacuum and ported vacuum via a CTO valve according to how hot the engine is.

Or it came from the drivers side above the brake feed for pure manifold vacuum depending on the flavor of the emissions.

I have never heard of a stock feedback 258 having pure ported vacuum, but I haven't seen them all....

Mike
86/00 CJ7 Laredo, 33x9.5 BFG AT's, 'glass nose to tail in '00, 'New' frame,wires and plumbing in '09. Carter BBD Carbed 4.0 HO in '10.
89 YJ Renegade. BBD Carbed 4.0 HO. Locked front and rear with 33x9.5 BFG AT's
Some Canadian Bush Jeep Runs and Build Photos: http://mikeromainjeeptrips.shutterfly.com (10 new albums added Sept 16/10)
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post #88 of 434 Old 05-06-2009, 12:22 PM
Surf2679
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[QUOTE=Mike Romain;7149983]
Quote:
Originally Posted by Surf2679 View Post

Stock, the vacuum to the distributor come from a diverter valve that mixes manifold vacuum and ported vacuum via a CTO valve according to how hot the engine is.

Or it came from the drivers side above the brake feed for pure manifold vacuum depending on the flavor of the emissions.

I have never heard of a stock feedback 258 having pure ported vacuum, but I haven't seen them all....
I should not have termed it factory, now that I think of it I replaced the carb after I bought the Jeep and put hoses exactly as they were and the person before me already had it set up this way.

Thanks again
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post #89 of 434 Old 05-06-2009, 11:03 PM
Mr-Rock
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1989 YJ Wrangler 
 
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Just wanted to say thank you to all for constantly updating this thread! All my questions were answered in this or the "nutter bypass trouble" thread.
I just finished the bypass and went for a quick test drive. I can't believe that all the pinging is gone, and she rev's smoothly. I think I still need to fine tune the carb but I am impressed with the early results.

Thanks again!

'89, 4.2, NUTTERED, Team Rush, 4" lift, 1"BL, 1"MML, Flat belly skid, SYE, CV Driveshaft,
35 x 12.50s, XRC8, 150w KC's, Herculined, Tauras Elec Fan, Dual Batteries, 1" shackles & Soft Top for the summer, TJ flares.
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post #90 of 434 Old 05-06-2009, 11:05 PM
Mr-Rock
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Guess I have to change my signature from "soon to be nuttered" to just "NUTTERED"!

'89, 4.2, NUTTERED, Team Rush, 4" lift, 1"BL, 1"MML, Flat belly skid, SYE, CV Driveshaft,
35 x 12.50s, XRC8, 150w KC's, Herculined, Tauras Elec Fan, Dual Batteries, 1" shackles & Soft Top for the summer, TJ flares.
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