Hi I bought a C460 crate engine after a good run it ran fine nice and quite I removed the rockers and re touqued the heads down
when I reinstalled the rockers I started at no1 cylinder just gripping the push rod with thumb and finger till you can not turn it any more and give the nut half a turn and locking it up tight this is when the piston is at the top of its firing stroke I done this with all the rockers.. with
fireing order 1-5-4-2-6-3-7-8
When I run the engine I have now got rattles from the top end thats the first time the second time I adjusted the inlet rocker when the exhaust is just about to open and the exhaust when the inlet is just about to open and still I have a rocker rattle?
Should I do these adjustments with the engine hot?
I have noticed that now I am setting up the rockers for the 3rd time that as I adjust no1 cylinder rocker and start turning the nut 1/2 a turn as before from the inlet valve is moveing downward IE oprening is this correct?
Ford tec sheet says slowley torque to 18-20 ft lbs I have also tried this but my touque wrench will not click open even set at 16lbs you just wind the nut/valve down
It has alloy cobra jet heads which must expand a bit when hot
It has M6500-A301 ant pump up lifters and M6564-F351 1.60 to 1 roller rockers
is there an easy way to set these rockers?
any help thanks!
when I reinstalled the rockers I started at no1 cylinder just gripping the push rod with thumb and finger till you can not turn it any more and give the nut half a turn and locking it up tight this is when the piston is at the top of its firing stroke I done this with all the rockers.. with
fireing order 1-5-4-2-6-3-7-8
When I run the engine I have now got rattles from the top end thats the first time the second time I adjusted the inlet rocker when the exhaust is just about to open and the exhaust when the inlet is just about to open and still I have a rocker rattle?
Should I do these adjustments with the engine hot?
I have noticed that now I am setting up the rockers for the 3rd time that as I adjust no1 cylinder rocker and start turning the nut 1/2 a turn as before from the inlet valve is moveing downward IE oprening is this correct?
Ford tec sheet says slowley torque to 18-20 ft lbs I have also tried this but my touque wrench will not click open even set at 16lbs you just wind the nut/valve down
It has alloy cobra jet heads which must expand a bit when hot
It has M6500-A301 ant pump up lifters and M6564-F351 1.60 to 1 roller rockers
is there an easy way to set these rockers?
any help thanks!