Technical Installing adjustable pushrods in a hemi

I need to install adjustable pushrods in my 331 but don't want to unbolt my heads if I don't need to. I seem to recall seeing an article on building a rocker arm compressor that allows compressing the valve spring and moving the rocker allowing rod removal. Anyone have info on that?

 

I just opened this and will give it a bump. I have seen pictures of what your looking for. When I have time I will search my saved Hemi info. Maybe someone will beat me to it.

 

I know they didn't hold the head tight but I cut the heads off a couple (4?) old hemi head bolts and ground a square on top so I could screw them in and out, just to make sure the heads stayed in place while I pulled the rockers to make sure oil passages were clear.

Dave

 

Been thinking about trying to do that and hope the gaskets didn't let loose! Leaving the intake manifold attached should help stabilizing it a bunch.

 

Could you make yourself a spring compressor that hooks under the rocker shaft and pushes down on the retainer? It would seem like, with the adjuster screwed all the way in, you shouldn’t need to compress the spring all the way to coil bind. If you use a hose clamp to hold the stabilizer springs on the rocker shaft out of the way, the rocker would be free to move enough to remove and install the pushrods.
You may need three hands to do it though.

 

Why can't you use a tool like checking spring pressure, Or make one with 12-16 inch handle to hook under rocker @ push rod side & push down on spring side ?? I wound think it only need 1/4 - 1/2 moment .
Is the push rod guide/ plate removable or slotted to do this?
I also experiment and make unusual parts for myself. I would think if you could use a bigger pushrod
(If needed )diameter, you can make your own set of adjustable pushrod.
Grade 8 or Nas grade stud/ bolt.

 

Here’s a few pics that are from a thread that’s currently on here.

 

I like it!

Dave

 

IIRC, the pushrod holes in the head are small. I think you need to be able to also move the rocker sideways just enough to install the pushrod so the tool needs to only push one the retainer/valve tip. Nice tool though.

 

What about pumping air into the cylinder to hold the valves closed then use the tool as already written about, to move the rocker arm aside to pull the push rod. You can do this but you have to rotate the crank so that both valves are closed.

 

That's it!! I knew I saw it somewhere.