The Stovebolt Site Forums The Shop Area Engine Shop rocker arm adjustment

Hi Bolters!
I am finally getting my rebuilt 216 back togather, and I am needing to know how to properly, give the rocker arms an initial adjustment, prior to starting the engine. Everything in the engine is new. I also replaced all the pushrods, lifters, and one rocker arm, that was broken because of a stuck valve before the engine was overhauled.
Thanks in advance for the info!
KT

First, have you ground the face of the rockers smooth? This is where the rocker hits the valve stem. If there is a ridge from wear, you won't get the valves adjusted right.

To adjust the valves on a new engine, simply follow the procedure for a warm engine. Last I looked there was a tech tip or two on it. It won't hurt to use the gap for a warm engine, as long as you're not running a huge cam.

After your 20 minute cam break-in, then reset the valves while the engine is still warm.

Another tip on a fresh engine is to use straight water for coolant. Seems like when I use antifreeze I end up with a leak, and straight water is a lot easier to deal with. Of course, add antifreeze once you know there aren't any leaks.

kt
When I first attemped to do a valve adjustment on my 49 216, I had the tech tip printed and on the fender with me. I struggled to do it accurately and ended up with a truck that ran very poorly. After consultation here I did COLD adjustment to .010 and .020 where I could take my time and get the feel and position done correctly. This initial adjustment worked great and allowed the truck to run fine. I did get a hot adjustment done later, but very little changed from the cold adjustment.
dave s

Thanks to all who replied. Hi Dave! I have a 235 that the mechanic who overhauled it, adjusted the valves before the engine every ran, and when I put it in the truck, it ran great! I have been told that a good mechanic will adjust them slightly loose. I have never done this before, and I appeciate the tips!
KT