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Old 12-06-2018, 01:32 PM
dbell dbell is offline
232 I6
 
Join Date: Nov 26, 2014
Location: Colville,Washington
Posts: 36
84 GW CHOKE ISSUE

Hi guys,

I need some advice on my choke adjustment. The carb is stock.

Problem: My rig has to be completely warm before the choke lets off. The temp gauge has to be dead center before the choke will let off from a very fast idle.
We live in cold country but the choke does the same thing in the summer, it just requires much less time (obviously) to let off than winter time.

Any help is appreciated,
Thanks,
Dan
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  #2  
Old 12-06-2018, 02:39 PM
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tgreese tgreese is offline
 
Join Date: May 29, 2003
Location: Medford MA USA
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Quote:
Originally Posted by dbell
Hi guys,

I need some advice on my choke adjustment. The carb is stock.

Problem: My rig has to be completely warm before the choke lets off. The temp gauge has to be dead center before the choke will let off from a very fast idle.
We live in cold country but the choke does the same thing in the summer, it just requires much less time (obviously) to let off than winter time.

Any help is appreciated,
Thanks,
Dan
There is a choke plate and the fast idle cam. Regardless of he engine temperature, the fast idle will not slow down until you release the fast idle cam from under the fast idle stop screw by opening the throttle ('blip' the throttle).

This is a thermoelectric choke. It requires both hot air from the stove in the intake manifold, and electricity, to warmup and release.

Do you have the TSM for 1984? Cheap on CD-ROM from RockAuto. Choke operation of an '84 will be very similar to an '82. There is an '82 TSM free to read and download here http://oljeep.com/edge_parts_man.html Read forward from page 1J-59. There is a section that describes operation of the system, and a section that describes adjustment of the choke plate and fast idle.
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Last edited by tgreese : 12-06-2018 at 02:47 PM.
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Old 12-06-2018, 02:50 PM
dbell dbell is offline
232 I6
 
Join Date: Nov 26, 2014
Location: Colville,Washington
Posts: 36
Thanks Tim.

I do "blip" the throttle, but until the rig is completely warm, it stays at a very fast idle. When the rig is half warm enough, the fast idle does reduce in a couple steps. In cold temps (we are 28 degrees right now at noon) it takes at least 5 mins before the choke is all the way off. Is this time frame normal ?

Dan
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Old 12-06-2018, 03:05 PM
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tgreese tgreese is offline
 
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Location: Medford MA USA
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You can adjust the choke to both open sooner and idle less fast. Without sufficient choke and fast idle action, it won't be drivable when cold, so make sure it's drivable to your satisfaction. But I would first determine that the system is operating properly. You need both electricity to the choke cover, and hot air from the intake manifold, for the choke to unload properly. Mangled or missing hot air tubes are common on these engines.
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Tim Reese
Maine beekeeper's truck: '77 J10 LWB, 258/T15/D20/3.54 bone stock, low options (delete radio), PS, hubcaps.
Browless and proud: '82 J20 360/T18/NP208/3.73, Destination ATs, 7600 GVWR
Copper Polly: '75 CJ-6, 304/T15, PS, BFG KM2s, soft top
GTI without the badges: '95 VW Golf Sport 2000cc 2D
ECO Green: '15 FCA Jeep Cherokee KL Trailhawk

Last edited by tgreese : 12-06-2018 at 03:11 PM.
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Old 12-06-2018, 03:52 PM
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nograin nograin is offline
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Location: Philadelphia, Pa., USA
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Quote:
Originally Posted by dbell
I do "blip" the throttle, but until the rig is completely warm, it stays at a very fast idle. When the rig is half warm enough, the fast idle does reduce in a couple steps. In cold temps (we are 28 degrees right now at noon) it takes at least 5 mins before the choke is all the way off. Is this time frame normal ?
5 minutes at fast idle is not unusual. I've usually closed the garage doors, backed out of the driveway, and gone a few blocks before it will kick off down to normal idle.
5 minutes for the temperature gage to hit middle is unusual. Most of the time its 5 minutes just for the needle to creep up to the coldest mark.
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Old 12-06-2018, 07:51 PM
dbell dbell is offline
232 I6
 
Join Date: Nov 26, 2014
Location: Colville,Washington
Posts: 36
Well,

After reading the sage advice from everyone, the lines and in-between the lines, I don't think I have an abnormal problem with "Gertie". She starts cold with (2) pumps, idles fast for 5 mins, choke drops out, and she runs perfect !

Thanks guys !
Just put the snow plow on her today...She's ready !

Dan
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