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Unread 12-09-2009, 06:53 PM   #1
bombdude
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1984 CJ7 
 
Join Date: Jul 2009
Location: Baton Rouge, La
Posts: 21
About to Nutter - What has the PO done??

Ok. I printed luckyheesehead's thread on how to nutter from Feb'08. Been studyin' up & was ready to tackle it.

First thing I found was that the stepper motor was already unplugged, so I'm thinkin' that it's already been nuttered.

Pulled out the wiring & the wires have not been bypassed. They are stock.

OK, so at this point I'm continuing to read the thread & see that the distributor vacuum hose is already connected to the left side vacuum port. It isn't spliced as instructed, so I don't know where the original line would have gone. There are a couple plugged lines from the back of the carb.

The line from the original vacuum port where the dist line was supposed to be hooked up goes to the canister on the driver's fender (front position)
Interestingly, the second line on the canister just hangs & isn't plugged. Don't know where it goes.

Couple things I've played with. I can plug the stepper back up - no difference.
I also can't get the stepper pin to move by adjusting the idle mixture screws, plugged or not. As a matter of fact, closing the screws all the way doesn't affect the running of the Jeep. It actually runs "fair". Better than when I first got it. Some copius application of carb spray has gotten it idling ok, but it still "coughs" occasionally.

Overall, I still believe that I can do the nutter w/o a problem. Just not sure about the vac lines & pin movement.

Any help would be appreciated.

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Unread 12-10-2009, 07:01 AM   #2
Mike Romain
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1986 CJ7 
 
Join Date: Nov 2007
Location: Off the Grid in Chester Grant, Nova Scotia, Canada
Posts: 12,734
A $20.00 carb kit will sure help make it purr.

The stepper seems seized. You can remove it and set the pins up for good running with their shoulder about 1/8" from the back wall:


You can do the wiring with no issues, then the timing and carb mix.

Here is where the vacuum lines go: Vacuum Hose Hook Ups - JeepForum.com

The canister purge line T fits to the PCV line behind the carb. The canister vacuum signal has to go through the CTO valve.
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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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Unread 12-11-2009, 07:30 PM   #3
bombdude
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1984 CJ7 
 
Join Date: Jul 2009
Location: Baton Rouge, La
Posts: 21
Thanks Mike.

And, well, I took your advice & picked up a kit for the BBD. Haven't found a 1.08 2100 yet. Got it torn apart last nite, Good Lord that's a lot of parts. Got it soakin now.

Next question is the stepper. I can't get the needles to move at all. The center shaft won't move.

Does the metal shaft move, or is it the orange plastic housing the the shaft goes into. And can I lube it in some way to get it to move??
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Unread 12-13-2009, 06:22 AM   #4
Mike Romain
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1986 CJ7 
 
Join Date: Nov 2007
Location: Off the Grid in Chester Grant, Nova Scotia, Canada
Posts: 12,734
I would soak it in penetrating oil. If I remember right, the center shaft moves. It moves in steps so rocking it may loosen it up. I think I have had most luck making the center move out first, then it goes back in.

When the pins are set right, the fiber board the pins fit into will be 'just' inset into the stepper bore enough to capture the pins so they can't fall out.
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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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Unread 01-18-2010, 11:14 AM   #5
bombdude
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1984 CJ7 
 
Join Date: Jul 2009
Location: Baton Rouge, La
Posts: 21
I know it's been a month, but I wanted to update.

The kit really helped as Mike stated it would. Still had an occasional cough, but definitely better. So i went with this, & finally completed the nutter last nite. As stated, the dist vacuum hose was already hooked up to the ported vent, so I didn't change anything with the hoses.

When I checked the timing, it was advanced off the chart!! At idle it was beyond the marks. Slowed it down to 8 deg, & now it really purrs. I don't have a tach, so I don't know my RPM's, but now it has a nice slow idle. I took it for a short spin last nite, & it seems to run great. I'll be checking mileage (last tankful I got 10mpg, ugh!!) & performance changes in the next few days.

Thanks, Mike for your responses. Your willingness to share your knowledge is greatly appreciated.
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