tlava Posted February 16, 2013 Share Posted February 16, 2013 I installed a reman. Nissan v6 (VG30e, 3.0L; was 30i before rebuild). JIS (Japan Engine) engine did the rebuild, which now has 3k miles on it. JIS does not, however, put in new lifters--they recondition or "rebuild: them; I used non-syn oil for the first 3k miles, and just now changed to Castrol High Mileage "part-syn." When the engine was first installed, it seemed to make a bit of lifer noise on start up, which disappeared; after this recent oil change, using the part-syn, the noise seemed louder and did not go away after about 30 sec (I have not driven the car yet, however, since the change)-- my question is: should I go back to non-syn oil? should I replace the lifters with the orig ones, which I saved (since the engine had only 70k miles on it)? should I buy new, aftermarket lifters? should I just ignore the noise and carry on? Quote Link to comment Share on other sites More sharing options...
Derek up North Posted February 16, 2013 Share Posted February 16, 2013 You might only have one or two 'lazy' lifters. Rather than replacing them all (if you can't live with the noise), just renew the bad one(s). Apparently you can get new for ~$10 each here:- http://www.nissanparts.cc/ Quote Link to comment Share on other sites More sharing options...
zero Posted February 16, 2013 Share Posted February 16, 2013 I installed a reman. Nissan v6 (VG30e, 3.0L; was 30i before rebuild). JIS (Japan Engine) engine did the rebuild, which now has 3k miles on it. JIS does not, however, put in new lifters--they recondition or "rebuild: them; I used non-syn oil for the first 3k miles, and just now changed to Castrol High Mileage "part-syn." When the engine was first installed, it seemed to make a bit of lifer noise on start up, which disappeared; after this recent oil change, using the part-syn, the noise seemed louder and did not go away after about 30 sec (I have not driven the car yet, however, since the change)-- my question is: should I go back to non-syn oil? should I replace the lifters with the orig ones, which I saved (since the engine had only 70k miles on it)? should I buy new, aftermarket lifters? should I just ignore the noise and carry on? I doubt your choice of oil has anything to do with it. Oil sold as "synthetic" often is made from 100% petro, and even if it was truely non-petro -true synthetic oil . . it lubes no better then petro oil. True synthetic has higher heat durability (Flash Point) and a more stable viscosity over a wide temp range. It does not lube better. If affected by oil choice the additive package and viscosity will be the determining factor. There is no cost-effective way to "rebuild" hydraulic lifters. I assume the engine rebuild place just cleans up the old ones - but cleaning cannot restore metal-to-metal tolerances. A hydraulic lifter is a little hydraulic piston in a cylinder bore. If worn or scored - cleaning does nothing. I know Nissan had complaints about hydraulic lifter noise in many 3 liter V6s. It had something to do with an inconsistent oil supply to the lifter and the Nissan fix was to change to a new style hydraulic lifter. Chances are the lifter noise will never hurt a thing if not excessive (and the engine isn't skipping). My Subaru has done it, off an on, for 220,000 miles. That being said - if you wanted to fix it . . I'd make d*mn sure I got my hands on the updated Nissan lifters with the improved oil flow. Nissan # 13231-V5005. Quote Link to comment Share on other sites More sharing options...
Derek up North Posted February 16, 2013 Share Posted February 16, 2013 http://www.nissanparts.cc/cart/?pn=13231-V5005 Quote Link to comment Share on other sites More sharing options...
tlava Posted February 17, 2013 Author Share Posted February 17, 2013 Thanks for the link--does the year matter? (this is an '86...) Quote Link to comment Share on other sites More sharing options...
tlava Posted February 17, 2013 Author Share Posted February 17, 2013 no wonder the lifters were making noise--as soon as I changed the oil, the faulty oil filter started dumping it on the ground; ran at idle maybe half a minute one day, then not more than a minute the next before I noticed it--I didn't drive it, just started it to see if the lifters would quiet down if I got the oil circulating, then looked underneath as I usually do to check for leaks--wow; put the old filter back on and no problem; I had to add 3-3.5 quarts, though, but as soon as I did, no lifter noise (just a bit at startup)--so I'm assuming not harm done? Quote Link to comment Share on other sites More sharing options...
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