ok, this is the last time i'll post this, i know you guys are probably getting pissed...
ok, around mid August i installed my cast iron gt40's, and ever since, they've been making a bunch of noise, my heads include as follows:
rebuilt around 10k ago with all new hardware
(possibly milled)
minor head work
and crane 1:6 roller rockers
here's what i've done so far:
when i first put them on, i just tourqued the roller rockers down to 14lbs. with stock legnth pushrods.
they ticked like a mofo and the car had NO power.
next, i put the stock stamped rockers on, and they quieted down some, but they still made noise and had no power
after that i decided to pull off the lower plenum and watch each lifter preload as i continuisaly (sp) rolled the motor and adjusted them.
when i did that, i had a stock legnth pushrod with a small valve lash cap on it, but i don't think the lifter preload on the valves were consistant, so when i put it back together, it still made noise, but i did have power.
and thats where im at right now, i checked each rocker arm after running it a bit, and a few of them have a bit of play back and forth.
as far as the pushrod, it CAN rotate back and forth but can't go up and down.
do you think i have too short of a pushrod?
i dont know what to do anymore, im getting pissed, they just sit there and make a bunch of noise...
sorry for the long post, but i need youre help...PLEASE! HELP ME!
ok, around mid August i installed my cast iron gt40's, and ever since, they've been making a bunch of noise, my heads include as follows:
rebuilt around 10k ago with all new hardware
(possibly milled)
minor head work
and crane 1:6 roller rockers
here's what i've done so far:
when i first put them on, i just tourqued the roller rockers down to 14lbs. with stock legnth pushrods.
they ticked like a mofo and the car had NO power.
next, i put the stock stamped rockers on, and they quieted down some, but they still made noise and had no power
after that i decided to pull off the lower plenum and watch each lifter preload as i continuisaly (sp) rolled the motor and adjusted them.
when i did that, i had a stock legnth pushrod with a small valve lash cap on it, but i don't think the lifter preload on the valves were consistant, so when i put it back together, it still made noise, but i did have power.
and thats where im at right now, i checked each rocker arm after running it a bit, and a few of them have a bit of play back and forth.
as far as the pushrod, it CAN rotate back and forth but can't go up and down.
do you think i have too short of a pushrod?
i dont know what to do anymore, im getting pissed, they just sit there and make a bunch of noise...
sorry for the long post, but i need youre help...PLEASE! HELP ME!