87 cj-7 - JeepForum.com
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post #1 of 5 Old 03-29-2014, 07:50 AM Thread Starter
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87 cj-7

Looking at an 86 CJ7 as a project, it runs and a mechanic friend of my drove it and said it's pretty good...figure my son and I could work on it together. My only fear is the upgrading snowball which I'm sure I would succumb to. The wife isn't happy but I've always wanted a CJ. I know it has the inline 6 in it....are those engines "bulletproof" ?



Stupid iphone keyboard....I meant to type 86 in the title but hit the 7 before I noticed

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post #2 of 5 Old 03-29-2014, 08:50 AM
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1989 YJ Wrangler 
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Frankly since you asked, the CJ's are well known money pits that require pretty much constant tinkering to keep running. Parts are getting scarce and expensive. They have carbs that cause lots of problems. Their gas mileage is poor, their performance in stock form could best be described as agricultural. To find out more, do some research here:


Then get back with us with more detailed questions.

Hey guys, there is NO SUCH THING as RPMS. There is NO "S" in RPM.
A little knowledge is a dangerous thing, but not nearly as much as ignorance.
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post #3 of 5 Old 04-09-2014, 02:15 PM
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1981 CJ7 
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I love my cj! It's my daily driver and it's true you will need to tinker and work on it quite a bit but the 4.2 l6 is a great engine. Very simple and has pretty good torque. If it has a sr4 trans that should be the first thing you swap. Also look into a different carb. The stock carter is not that bad but is kinda over engineered with the thermostat style choke. I have issues with that quite a bit. Also Try and find a cj with a Dana 44 rear instead of the amc 20. The 20 has 2 piece axles that have issues. I would say a cj is the best project jeep to restore. It would be a great build with your son. I had a lot of fun building mine with my dad!
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post #4 of 5 Old 04-11-2014, 03:43 PM
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2009 JK Wrangler 
Join Date: Feb 2014
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I have a 84 cj7 and I love it. It was a father son semi build. It's my daily driver . If built properly won't cause too many issues or problems. The carb is the main issue on Cj's and early YJ's when it comes to the engine. They always tend to fail. If you end up getting it I recommend putting a fuel injection in it or if you live in the Southern California area there's a place in Laguna called "Jeeps R Us" that fixes all carburetor issues and seems to last. My buddy has a cj8 and a rebuilt carburetor from them and he's going on 10 years with it I believe and it has no issues and no signs of issues at all. Since it's a father son project I think a Cj would be a great purchase. They are really easy to work on, a lot easier than the 2000 models imo. And most aftermarket parts are cheaper than the Tj's and JK's parts.
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post #5 of 5 Old 04-13-2014, 06:55 PM
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1985 CJ7 
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I see the dana 44 rear has already been mentioned but another weak point is the T5 5 speed. Avoid it, prone to breakage.

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