Thread: Valve Train Noise

Tweet

well your EX has no rotators and on all race stuff we loose them most OEM stuff now the heads on longer use them some bbc had rotators on IN and EX. as for the ex if it should be turning i would say no or lets say not much .i have built hi lbs engine with 270 to350at seat and 700 past 1000. open you see some lines on stem like this + but not shinny like they are spinning alot ,so if the spring was moving alot i wound worry that you have have low lbs on the valve that would be going in valve float were the spring start s to jump then it will dance a round . if you can check your leak down thats hard to say i would say at O lash after it been ran . check another cylinder and check the one that will not take lash it should not be loose it should more like the lifter try some carb cleanner spray it down the push rod and let it set they said that would un stick a hyd lifter old hot rod trick ? hard to say if it will work . there is two other thing s you may have going on with this lifter the valving got hang up start the engine up and work the lifter up and down threw lash go to 3/4 of a turn then to O and do that 3 or 4 times then at O go to a 1/2 see if that helps .if you are run comps there are new hyd rollers lifters that take less then a 1/2 turn there for HI rpms short valving.so they do not have not much valving in them.did some one get it mix up going down the line ? i hear that this lifter may make more noise?? and some one makes a roads leaky roller lifter mixed up valving ? i not sure who makes comp roller lifters many cams companys do not . try less then 1/2 first before cranking it down to 3/4 like i said . all my street rollers i go better then 1/2 turn now.on the hi RPM HYD roller lifters i still set at 1/2 but i do not use any comp stuff .has for the side to side play it can be alot the push rod guides are the only thing that keep the roller tip and valve stem tracking so i grab then and push them side to side with my hand i first back the studs off a less then a turn so i can tap them side to side some guide plates have some slot to them or bigger holes so they can be moved some to get your best tracking on the roller tip and tq the studs down. if that will not work then i go with adjustable ones like i posted . or you can slot yours with a stone on a die grinder .this and mid lift is a very big deal that many over look with the more after market stuff the more you have to check this stuff just cuz its new may not make it bolt on like they tell you or right very few times you will get both i spent days getting shaft rockers and push rods right on race engines with the help of a mill and a lathe