How do you replace oil ring oil pump shaft on a '97 chevy lumina 3.1?

Answer 1

disconnect battery i found the easy way to do this is remove air intak box top and snorkle hose loosen and remove intake manifols bolts there is a metal pipe that goes to brke booster that has to be unscrewed, also pull map sensor remove any hose that limits you to lift manifold up be prepared to chage broken hose under manifold they are nylon and crck when didturbed you can use vacuum hose as replacement. you nedd to remove the fuel lines tha screw into fuel injecter rail also the is a fuel line clamp that will let you move the fuel lines awy from the oil pump shaft once you have room remove oil drive rod retainer bolt andwedge piece. i usually spray carb cleaner around pump shaft because oil varnish makes it sticky to get out get a pair of locking needlenose vise grips and work the pump shaft first turn left and right to break varnish up and then start to lift the shaft rocking back and forth once out clean block surface and shaft surface install new o=ring now i use rtv silicon because this is a problem area to seal especially with a few miles to crankcase pressure blows out this spot first. put shaft w/ new seal and seaaler back in if the shaft doesnot go in and bottom out to block you might have to bar the engine over with a wrench by turning grank pulley clockwise only while someone holds down pressure while slowly turning crank pully this is to line up cam gear with oil pump hex drive once shaft is all the way seated put retainingbolt and wedge back in tighten hook up feul line check that the oring are on the end of both hoses if not stop and buy new fuel line orings at dealer damaged or missing oring will pump gas on motor and burn no joke!!! replace manifold with new upper intake gastets (upper plemum)i would chang pcv valve while you right there and hose repair any crack vacuum hose even the one to fuel pressure regulator and map sensor if not the car will idle like crap dont forget brake booster pipe and i reccommend a oil and filter change.then kiss that major oil leak good bye take a foe day for excess oil to drip from frame