720jon Posted January 13, 2015 Author Report Share Posted January 13, 2015 Do the z24s crack the same way the z22s do? Maybe have head checked for cracks? I imagine. Since the head i had to replace wwhen I first got the truck was cracked 1 Quote Link to comment
flatcat19 Posted January 13, 2015 Report Share Posted January 13, 2015 I imagine. Since the head i had to replace wwhen I first got the truck was cracked No. Z22s crack at the head bolt holes on the block. My post was 2 different subjects. 1 Quote Link to comment
84720FourWheel Posted January 13, 2015 Report Share Posted January 13, 2015 Were the cylinders filled with coolant? Hopefully you didn't hydro lock and bend your rods. 1 Quote Link to comment
720jon Posted January 13, 2015 Author Report Share Posted January 13, 2015 Yes coolant no lock or bend almost back together 1 Quote Link to comment
720jon Posted January 14, 2015 Author Report Share Posted January 14, 2015 IT'S ALIVE!!! Igor, get me a beer. Thanks to you all for the support. Now, what to do with the ka... 2 Quote Link to comment
Charlie69 Posted January 14, 2015 Report Share Posted January 14, 2015 Keep the KAs and buy a truck for a project. Be a good learning experience. By the way why did you have coolant in the cylinders? It is always best to figure out a problem before creating another problem. Pulling the spark plugs and cranking over the engine in the beginning would have saved you the time, trouble, and expense of the KAs. 1 Quote Link to comment
720jon Posted January 14, 2015 Author Report Share Posted January 14, 2015 I agree. I was impatient. But as for the ka's, I got them for next to nothing so I'm not to bummed 1 Quote Link to comment
datzenmike Posted January 14, 2015 Report Share Posted January 14, 2015 So I bought an 84 4x4 720 with a z24 and it needed a rebuild. I finished the rebuild and it overheated and now it won't start and cranks really slowly. Instead of spending another 500 to rebuild my spare I pulled a Ka24e, harness and ecu out of a 90 240sx. I'm trying to figure out how to wire the efi up. Also I realized (too late) that I need to swap the oil pan since the 240 has a front sump. I am open to all suggestions and any help. Thanks for reading. Jon $500 isn't a rebuild and wouldn't cover the machine shop work. Get that temp gauge fixed or you will need two spare KAs. 2 Quote Link to comment
Charlie69 Posted January 17, 2015 Report Share Posted January 17, 2015 So did you buy another truck to put a KA in? How is your Z24 doing? Quote Link to comment
720jon Posted January 17, 2015 Author Report Share Posted January 17, 2015 Z24 doing great. Haven't figured out what to do with ka yet lo 1 Quote Link to comment
datzenmike Posted January 17, 2015 Report Share Posted January 17, 2015 Seeing as how you overheated this engine.... When it is dead cold from sitting over night. Re torque the head bolts. This is easy and they can be done in any order you like. Loosen one bolt only and immediately torque to 60 ft. lbs. Then and only then, move to the next bolt. Loosen it and tighten to 60 ft. lbs. Over heating expands the block and head metal and compresses the gasket. Only sensible to make sure the head is properly clamped to the block. 1 Quote Link to comment
720jon Posted January 18, 2015 Author Report Share Posted January 18, 2015 Torqued all the other day. 1 Quote Link to comment
dr.feltersnatch Posted January 18, 2015 Report Share Posted January 18, 2015 Its a very good idea to run a few heat cycles and then re-torque the head bolts. Not just set it and forget it. 1 Quote Link to comment
720jon Posted January 18, 2015 Author Report Share Posted January 18, 2015 That's whati did 2 Quote Link to comment
Charlie69 Posted January 18, 2015 Report Share Posted January 18, 2015 Is the Z24 is running good? Hows your temps? No oil in the coolant? No coolant in the oil? Jon do not be embarrassed we all make mistakes. The best thing is you learn something. It is a good day for me when I learn something. I hope the Z24 runs a long time for you. I am empressed that you stuck with the Z24 and figured it out. Good job. 1 Quote Link to comment
datzenmike Posted January 18, 2015 Report Share Posted January 18, 2015 Get that temp gauge fixed or you will need two spare KAs. 2 Quote Link to comment
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