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Showing results for tags 'cam wear springs l24 240z'.
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L24 fresh rebuild with Schneider springs, medium Delta regrind Cam (internal oiling), and new reground rockers ate the cam after ~ 2000mi. Very good oil pressure. Assumed bad metal, straight 30 break in oil followed by synthetic oil played a part. After removing and resolving the above... A new medium Schneider Cam with new rockers was installed 1,500mi ago and lobe 1 is starting to show wear. (on the back side of the lobe). The oil is dyno with zinc additive. I am now guessing that the Schneider springs and/or a partial oil blockage to the head are to blame. The springs were extremely difficult to install due to their high spring constant and the oil flow out of the cam when cranking using a remote starter seems less than the old spray bar that I have seen many times. Any ideas? My current plan of action is: 1. Try a new oil pump and crank with starter to see if oil flow improves. 2. If no improvement then take off the head: - inspect oils passages in head - clean and inspect contents in oil galley between filter and oil restrictor in top of block - install regular springs and a Nissan Cam with Nissan Rockers. This car is going to NH next week so no time to mess around. All help, advice most welcome.
