Good Start/Hard Start/No Start -

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post #1 of 3 Old 05-25-2010, 06:14 AM Thread Starter
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1984 CJ7 
Join Date: May 2010
Location: Ousley, GA
Posts: 76
Good Start/Hard Start/No Start

Long time user of a similar forum - new here.

Here is my setup. No computer/emissions. Clean, well maintained CJ

1984 258 w/2100MC, MSD 6a, TFI Coil, Team Rush Upgrade.

Upgraded to the MSD last year and swapped out my several times rebuilt 2100 for a newer, freshly rebuilt 2100. The CJ had been running like a top ever since. Lately it has sat for a month here and there without being used. Recently started to use it on a more regular basis and it became harder to get it to start

This morning I could not get it to start at all so I decided to quit messing around an fix it. Checked and verified the MSD, coil, carb shooting good fuel, plugs ok, verified timing/ TDC.

Pulled the distributor cap (brass) and found a little corrosion on the electrodes. Cleaned it off and pulled the #1 plug for a spark test. Had my wife turn it over while I looked. Turned over twice and it was running and shorting on the block before she could shut it off. Figuring I had fixed the problem (corrosion in the cap) I buttoned everything back up and went to start it up.

Nothing. Same as before. Crank, crank, crank - won't even cough.

How could it fire and run with the #1 plug out and do nothing with it all back together? Is this a clue? Ground?

I have since tested for spark through the distributor and I'm getting nothing. Suspecting a bad stator - but could this be ground related? I plan to readdress all of the grounding routes when I get home but I'm looking for some thoughts.

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post #2 of 3 Old 05-25-2010, 06:38 AM
Mike Romain
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1986 CJ7 
Join Date: Nov 2007
Location: Off the Grid in Chester Grant
Posts: 18,089
The stock ground is the hold down foot on the distributor so adding a dedicated ground to the black wire coming out of there is a good thing to do.

The stock pickup in the distributor can be tested using an ohm meter. Orange and purple should show between 400-800 ohms with 600 being nicest between them. Neither of those wires should show continuity to ground.

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
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post #3 of 3 Old 05-25-2010, 07:48 AM Thread Starter
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1984 CJ7 
Join Date: May 2010
Location: Ousley, GA
Posts: 76
Confirmed bad stator.
Pulled stator had --- for ohms. That's bad.
New replacement from NAPA 624 ohms.

Plan on adding additional/dedicated ground to the stator.

The fact that it started with the plug pulled and grounded still has me wondering.
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