I would give it a 2, my other buddy john did the lashing and torquing, but like I said he didn't follow the charts he just kept turning the crank until the lifters looked like they where off the cam lobe, he even looked at me at one point and said I think I saw the spring start to compress a tad, so tomorrow when its not negative outside lol, were going to reset all them.
funny how easy it is when you just take your time. my speed shop dist and reinstalled these rockers. ONCE. f-ed them up pretty bad. i looked closely at them after i had the truck back and the mini shaft from one side to the other was out of level. on one stud the axes was higher than the other. they didnt pay attention to setting the mini shaft in the saddles, had one of the mini shaft up-side-down, bent a allen key stud, mushed a few of the saddles over, expected the shaft system to index itself and just started torquing down at 35ft lbs. had to call hughes and he sent out replacement components at my cost.
to answer your questions, about the lifters, and setting the lash, it takes awhile for my lifters to bleed off. hours. actually some of my valves are still open cold since over night. its ok to run the truck and warm it up alittle. the engine heat isnt all that bad to work with.
no it is not just good enough to visually watch the lifters close and set the valve lash. it depends on the cam, when how critical the adjustments are made. you and i can make adjustments at tdc or to be safe use the chart. at tdc FOR EACH CYLINDER the lifters are down and the combustion chamber is closed for an ignition stroke. some cams with a huge duration may be just hanging open too long to set at tdc. and with out knowing you might not be on a compression stroke! ramp angle on some cams is so slight, it can fool the eye and it isnt easy to watch and set the valve lash.
the object is to set the lash on the base circle. when the cam has no lift applied.
to be absolutely sure, use the chart.
when using the chart, the cam has the lift on the opposite side.
and there's still other methods. to adjust the exhaust valve when the intake just closes. then adjust the intake valve when the exhaust just opens. but i dont want to confuse. just use the chart.
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