philipl Posted February 14, 2009 Share Posted February 14, 2009 hey just curious im rebuilding an l6 gonna get all new crank bearings and piston rings.old bearings look real good no real bad wear or anything cylinder walls still have cross hatching.all cylinder walls are within spec measurerd in several locations as well as all crank journals.everything looks real good can i just get STANDARD SIZE bearings and rings what do you guys think ....do i need to plastigage the bearings or anything?thanks phil Quote Link to comment Share on other sites More sharing options...
philipl Posted February 15, 2009 Author Share Posted February 15, 2009 anyone !!! Quote Link to comment Share on other sites More sharing options...
Xnke Posted February 15, 2009 Share Posted February 15, 2009 You need to search around here. Get the Book. Book: How to Rebuild your Nissan/Datsun OHC Engine by Tom Monroe How to Modify your Nissan/Datsun OHC Engine by Frank Honsewitze Get them in that order, and you'll have everything you need to know. If the crank is not scored, then follow the directions in the book for polishing the journals and figureing the bearing sizes. Quote Link to comment Share on other sites More sharing options...
nismopick Posted February 15, 2009 Share Posted February 15, 2009 philipl... by asking these questions, I'm assuming you've never rebuilt a motor? I suggest having a machine shop do it for you. Or if you are dying to learn, find someone very experienced to show you what to do on your motor. To answer your question, if the journals look mirror smooth, you should be fine w/ standard size bearings. And yes, YOU NEED TO USE PLASTI-GAUGE. Quote Link to comment Share on other sites More sharing options...
RigilKent Posted February 15, 2009 Share Posted February 15, 2009 yep i would make sure to use plastigauge my brother and i just rebuilt his KA24de its not to hard it was the first one we did. just make sure you have a book and follow some sort of direction. and follow spec on torque good luck Quote Link to comment Share on other sites More sharing options...
philipl Posted February 15, 2009 Author Share Posted February 15, 2009 My motor rebuilding is limited to two VW 1600 cc motors but in their case you just buy new jugs/cylinders with new pistons.Bearings would have to be checked although i dont think i did MOTORS LUCKILY CAME OUT OK...... Quote Link to comment Share on other sites More sharing options...
softopz Posted February 15, 2009 Share Posted February 15, 2009 dude dont listen to these guys telling you dont do it. ITs a fairly simple engine even if you have no engine rebuilding experience its fairly easy just get a machine shop to re hone or rebore the cylinder walls and get a friend to help you with cam timing and chain. Quote Link to comment Share on other sites More sharing options...
woldson Posted February 15, 2009 Share Posted February 15, 2009 Having a book will be worth it. Take your time and do it right, not really that hard, just cost money. The more steps you skip the less miles you will probly get in the end. As stated by softpz it is not a complicated engine, stock rebuild is not rocket science. The only thing that might of got some guys going is that it is wise to use plastigauge, but you atleast knew what that was. Quote Link to comment Share on other sites More sharing options...
Xnke Posted February 15, 2009 Share Posted February 15, 2009 Nobody here said "don't do it:". Just get the book, there is so much valuable information in there, it's idiotic to not have it. if I didn't have it, I would probably never have attempted the rebuild. Quote Link to comment Share on other sites More sharing options...
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