Hi,I have a 85 nissan 720 4x4 2.4 with a Weber carb,never had to mess with the timing chain,but I do have another engine in it.These trucks have carb, issues,I got rid of my stock carb,couldn't do nothing with it,dealer said they were junk,so I put a Weber on it and it is so awesome now.The valves should be adjusted when the engine is hot.Could be the person that put the new timing chain in did it wrong.Here's a video I did after I installed the Weber carb.I never had a issue with having to adjust the valves.My old carb at the end would always idle high.The timing might not of been set right with the new timing chain.I have the factory repair manual I bought from the nissan dealer.I've had my Truck since 92,it's mint,speedo has 343,000 miles on it,Jasper engine has 53,000 miles on it,transmission is a remanufactured one,it has 3000 miles on it.
85 Nissan 720 4x4 2 4 Weber conversion Here's the carb I put on it.Here's a cool Nissan 720 site to join,it cost 5 bucks,I am a member,it's like a forum where 720 owners react with helping each other,you have a page where you can post pics of your ride and you can see other peoples 720's. http://720world.com/
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