I had a bent push rod on intake valve (#7)and dropped the rod. took off the oil pan, but cant see the rod. Any idea what I can do? will it have dropped far, or can I use a magnet to retrieve through the head? Or can I take off the intake, and leave the head on. Feeling stupid over here.
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bent push rods come from improper movement of the rocker and valve
This can be from an incorrect length push rod-- some v8 engines run different lengths for inlet and exhaust
from rocker arm jamming on the shaft or rocker ball
hydraulic cam follower pumping up and jamming the valve spring to a solid block
bent valve stem above the valve guide
valve spring Colette moved or misplaced incorrect rocker for that valve-- some engines run different length rockers for inlet and exhaust
what to do-- if this engine was running all right for some time then the rocker can be omitted. if the problem has been occurring since the cold weather the the oil may be too thick and not allowing the follower to leak down properly
check the follower or replace it , change to a lighter viscosity oil for the duration of the cold weather
unless you have had a recent head change or other mechanical work done the problem will be in those areas.
Something like that is sure wrong in #7. If you do a leak-down test, it should tell you if it is an intake or exhaust valve losing compression, or exactly what it is. A bent push rod would be a blessing. Then maybe you wouldn't have to take the head off for repairs. Roll a push rod over a glass surface to check for straightness.
It is VERY simple. The Intake valve push rods (marked with ORANGE paint) are shorter than the exhaust valve push rods (marked with BLUE paint) If you cannot see the paint, you can always stand them up next to each other...it is pretty obvious which ones are which.
BOTH heads are EXACTLY the same - they are interchangeable. It is just that one is turned one way and the other is turned the other way so the exhaust and intake ports will be on the correct sides. (intake port towards the center of engine, exhaust port to the outboard sides of the engine.) You do not need to go searching the internet for some "order". All you have to do is LOOK AT THE HEAD to tell which valve is intake and which valve is exhaust.
So then it is as simple as: Put the short push rods on the intake and the long push rods on the exhaust....
hold up rod bearings were did you get that?lets take it from the top.camshaft lobs move lifters on rotation,which lifters move push rods,push rods push valves up and down,which other side of valves push up and down valve stems,which open and close exhaust and intake stems.ok now were clear on that to see your push rods.take off your valve covers on side with tick.1.check for valve loosness.need a feeler gauge for this and specs for you truck to do this.because ticking is mostly associated with valve loosness or to tight.2.if rod is bad loosin valves but not off and inspect the rods for bends.on a flat surface.replace if bend.also make sure they to go back in same place.and repeat step 1.finally noise continues need to take in and checked possible internal damage.
I responded also on you other post--- You should have pull the spark plugs out
and turn the motor over until all the water was out of the piston
holes. If you want to find out drain the oil pull off the pan and see
if any rods are broke or bent or maybe you took out a rod bearing or a
wrist pin bearing or a piston.
remove all accessories from front of engine -alt and ps pump,then drain cooling system ,remove upper intake- remove valve covers then lower intake.Then take out push rods to remove gasket(keep push rods in order as exhaust rods ar longer-will bend valves if installed wrong-get a piece or card board and punch in 12 holes 6and 6opposite each other,then put push rods in it)please not their is an updated gasket set from FEL PRO that has all you need to repair the problem with updates torque specs for lower manifold in the box REMEMBER change motor oil befor starting-you can even pour a little oil onto lifters before putting lower back this is to get any coolant from upper block to run into pan before oil change,if not knocking will occur in the next week