Minesmith67 Posted April 19, 2015 Report Share Posted April 19, 2015 I just got a 85 Nissan 720 4x4 it has the Z24 motor. Dies anyone have a vacuum diagram for it from a Chilton. And I wanna put a different carb on it what are your recommendations. 1 Quote Link to comment
Justin Berni Posted April 19, 2015 Report Share Posted April 19, 2015 I just got a 85 Nissan 720 4x4 it has the Z24 motor. Dies anyone have a vacuum diagram for it from a Chilton. And I wanna put a different carb on it what are your recommendations. Both my 720's gave me carb problems, I put weber 32/36's on both and the headaches went away both times. 2 Quote Link to comment
Minesmith67 Posted April 19, 2015 Author Report Share Posted April 19, 2015 It's not that they are giving me problems. Its just there are no vaccumm lines on the motor at all. So if someone has a diagram that would be awesome. And are there any other carbs I could put on there 1 Quote Link to comment
Rhino13 Posted April 19, 2015 Report Share Posted April 19, 2015 It's not that they are giving me problems. Its just there are no vaccumm lines on the motor at all. So if someone has a diagram that would be awesome. And are there any other carbs I could put on there Go to the 720 section on this forum, look at the thread "my first 720! And first Datsun", the vacuum diagrams were recently posted on there. Just scroll through and you'll find it immediately. As for carbs, I've seen Rochester's, I've seen Holly's, but Webers are definitely the most commonly used due to a kit being online. It will come with a steel plate the size of the base of the carb, that will allow you to bolt it right up. If you're planning on changing your carb, do it now and avoid having the headache of the vacuum lines like Justin said. Redline sells the Weber for $300, or keep an eye out in the classified section on this forum, or even eBay. The Weber uses way less vacuum lines, so setup is really straight forward. Plus there's info all over this site on how to install and tune. To find things I usually just Google search what I'm looking for, then add Ratsun at the end. If you want to keep it stock, look through the thread I told you about for the vacuum diagram, see how it runs and go from there. I personally like the stock carb for a cruiser/around town car, but they're pretty gutless. 1 Quote Link to comment
Minesmith67 Posted April 19, 2015 Author Report Share Posted April 19, 2015 Ok awesome I don't have money to change catb right now I need to get it running so I can drive it from Seattle to Idaho then fix it up from there 1 Quote Link to comment
Brohemius Posted April 19, 2015 Report Share Posted April 19, 2015 Go to the thread mentioned above (my thread) i posted a couple diagrams from chilton and also photos of my engine bay (z22) pm me if you need anything else and i can take photos. 1 Quote Link to comment
ggzilla Posted April 19, 2015 Report Share Posted April 19, 2015 Remember there are different hose diagrams for the 1985 720: * Federal * California * Canada The underhood sticker will specify which type yours is 1 Quote Link to comment
Minesmith67 Posted April 19, 2015 Author Report Share Posted April 19, 2015 This is a different motor that stock I think it had the Z22 stock 1 Quote Link to comment
ggzilla Posted April 19, 2015 Report Share Posted April 19, 2015 Why do you think that? What does the underhood sticker say? 1 Quote Link to comment
datzenmike Posted April 19, 2015 Report Share Posted April 19, 2015 The first Z24 was installed on the October '82 720. That's part way into the '83 model year. The '85 can have a Z20 or Z24 gas engine or a 2.5 diesel engine. 1 Quote Link to comment
Minesmith67 Posted April 19, 2015 Author Report Share Posted April 19, 2015 The reason is because my dad swapped motors and put this one in he said it didn't have the Z24 in it originally 1 Quote Link to comment
datzenmike Posted April 19, 2015 Report Share Posted April 19, 2015 Could this engine be more confusing? Look on the top of the block where it meets the head between the #2 and #3 exhaust plugs. The engine size is stamped there. If a Z22 it was only used from '81 to '82. Get a vacuum line diagram for it. Or just connect the vacuum advance from the carb to the distributor. Not perfect but will run as good as possible. 2 Quote Link to comment
Rhino13 Posted April 20, 2015 Report Share Posted April 20, 2015 Try to get a picture up. Maybe you have an 85 motor in an earlier truck. If you can't get a picture up, does your tailgate have Datsun or Nissan on it? 1 Quote Link to comment
Minesmith67 Posted April 20, 2015 Author Report Share Posted April 20, 2015 Nissan. It's in Seattle right now and im in Idaho so can't take pictures 1 Quote Link to comment
datzenmike Posted April 20, 2015 Report Share Posted April 20, 2015 Well then let's not worry about it... 2 Quote Link to comment
Minesmith67 Posted April 20, 2015 Author Report Share Posted April 20, 2015 All I ok now is that my dad swapped motors it didn't have the Z24 in it originally so all in trying to find is someone with a vacuum diagram and detailed pictures 1 Quote Link to comment
Rhino13 Posted April 20, 2015 Report Share Posted April 20, 2015 Can you just ask your dad and end your confusion on the history of it? Use the diagram on Brohemius' thread, it's the same and will work. Once you're at the truck, post up some pictures of it, then some of your engine situation. You will get it figured out even if you do vacuum advance on the carb to the distributor to make it simple. But I suggest waiting until you're at the truck, so you're not running in circles asking questions that can't really be answered yet. 1 Quote Link to comment
datzenmike Posted April 20, 2015 Report Share Posted April 20, 2015 All I ok now is that my dad swapped motors it didn't have the Z24 in it originally so all in trying to find is someone with a vacuum diagram and detailed pictures Yes is could have been a Z20 originally, they also came on the '85 as an option. It could have been a Z 24 and was swapped to a Z22 before he got it. It could be anything but what matters is the stamp on the block between the exhaust pipes. Only way to get the correct engine is to identify by the block number. With it hundreds of miles away it doesn't matter much. Otherwise just plug everything except the distributor vacuum advance, this will do. 1 Quote Link to comment
Minesmith67 Posted May 4, 2015 Author Report Share Posted May 4, 2015 Ok everyone I got some pics of truck and it did have the z24 in it he just swapped for same motor with less milagr 1 Quote Link to comment
Rhino13 Posted May 5, 2015 Report Share Posted May 5, 2015 Post up the pictures. Z24 is a good engine 2 Quote Link to comment
Minesmith67 Posted May 5, 2015 Author Report Share Posted May 5, 2015 http://s527.photobucket.com/user/hahe22g/slideshow/Mobile%20Uploadslink to my photo bucket 1 Quote Link to comment
Rhino13 Posted May 5, 2015 Report Share Posted May 5, 2015 If you can't afford new, I'd highly recommend putting a used carb on it before trying to start it, or at least removing and cleaning that one as best as you can. 2 Quote Link to comment
Minesmith67 Posted May 6, 2015 Author Report Share Posted May 6, 2015 I plan on doing so. 1 Quote Link to comment
Charlie69 Posted May 6, 2015 Report Share Posted May 6, 2015 I have a Weber 32/36 that I took off an 85 4x4 King Cab 720 Z24 if you are interested. PM me. 1 Quote Link to comment
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.