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Old 04-06-2011, 07:22 PM   #1
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76 CJ5 Won't Start!!!

I have a 76 cj5 and until a week ago havent had any starting issues.

Honestly my knowledge is limited but I am mechanically inclined. I have a full tank of gas, fuel lines are clear, I am getting gas to the carburetor and it will turn over until the sun goes down!

Just 2 weeks ago I fixed a wet distributor problem so I am pretty positive its not the distributor cause when I fixed that problem it's fired afterwards. The plugs n wires and ignition module are all less than 4 months old. And I have the correct firing order. Triple checked.

Please help!! I want my baby back on the road!!!

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Old 04-08-2011, 12:16 AM   #2
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76 CJ5 won't start!!!

this is a hard one. number one, do you have spark? the '76 had a strange excuse for electronic ignition. mine never worked well at all. I put the engine out of mine in a friends earlier CJ, and used a points style distributor, and it worked great. If I remember, it had a GM style distributor for the points. number two, if it is a 304, it has been a problem over the years that the rig will run great, then you shut it off, and when you go to start it again, it won't. DRAT! Check to see if the timing marks line up on the dampener and the rotor is pointing to number one. If it isn't, and its out a bunch, it might have jumped timing. If that's what it is, a short time with some tools, and a new set of gears and a new chain will get you going again. make sure and line up the dots on number one. good luck, these are just suggestions from past experiences. Another possibility, is the big plug on your firewall where the wires pass through, held in the middle with a hex screw. pull it apart (after disconnecting the battery), clean it with contact cleaner very well, then use dielectric grease when reinstalling it. My "start" mode in the ignition switch can't find it to the solenoid, so I will be cleaning my plug soon. also, check to see if the coil battery plus side is getting electricity while in the "on" position. Give these things a try, and if still no workie, mention it on here, and maybe I can come up with some more ideas. glad to help, hope it helps. just remember, free advice is worth everything you pay for. good luck

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Old 06-23-2011, 12:50 PM   #3
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no spark no start, thats the first thing id check.
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Old 07-01-2011, 05:33 PM   #4
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Hi there, I have a 77 CJ5 that has had the emissions pulled out of it. In Utah most counties, it has to have the stock gear to pass. I have heard that it is ok to put fuel injection and an O2 sensor on it and it will be good to go. Does anyone out there have any experience with this on what and how to advise as well as if it is a legal option?
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Old 07-18-2011, 11:50 AM   #5
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Hey guys I'm having similar problems with my 1976 JEEP CJ-5 ENGINE

I'm doing an engine swap from a 76 CJ-5 (which I have plenty of leftover parts for those in need, including full hard top and clean body) to an 85 CJ-7.
Before the swap the motor ran in pristine condition, no knocks, no sputters, ran like a champ.

After the swap, which went great, direct bolt in, power steering lined up, there's a lot of electrical laying around but I'm figuring that out as I go. Right now I just want to get it back to running and work on the ignition system.

Ive got no key and ignition hooked up so I'm trying to go off a positive lead. I've got the + lead running to the +COIL, with the + and - lines running to a connector into the ECU, which has another connector (magnetic sensor) which connects to the DISTRIBUTOR, spark plugs in the correct positions and attached to the coil but we're getting no spark when we turn the engine over. Starter engages, engine turns, no spark.

Kind of stuck here, not sure about all the electronics but I thought running from a + lead would bypass the need for an on/off switch. Any advice is good advice. Thanks.


-JCM
adaptjcm@gmail.com
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Old 01-10-2012, 03:55 PM   #6
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i need help my jeep ant getting any gas to the engine its a 1976 cj5 with a 304 3 speed i put a new fuel pump in it and it starts when u pour gas into the carb
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Old 01-10-2012, 04:31 PM   #7
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Everyone that's posting problems that isn't Brian76CJ5 needs to start their own thread. We can help all of you, but put it in your own thread so we can keep track of each issue.

Brian, I agree with the posts that have already been put up. It sounds like a sparking issue to me too. Thats the first thing I'd check. If you're not getting a spark at all, check your gaps, should be .035"
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Old 01-10-2012, 07:05 PM   #8
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by any chance the prestolite ignition? I know AMC used that around those years, it would crank, until it decided not to, or cut off when it wanted to. those didnt have "weatherpack fittings" & you had to pull connector apart & reconnect it in 2 places & it would fire right up, we used to solder jumper wire across so it would never happen again. but this was on Pacers, which I think I worked on too many, as well as Gremlins, Hornets, etc. lol.

as for all the water out of distributor? are you absolutely positively sure? I have seen a little water hidden turn into steam & then re-condense & short the distributor out.

anyway check for spark, if none, then look at cap first, then see if your getting voltage to distributor. & then see if it is coming from ignition switch.
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Old 01-11-2012, 12:30 PM   #9
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1. Check battery terminal cables for tight connection

2. Check Ignition Coil

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