Ivan's RV-7

Removed valve train and cylinder #1Timer icon2h

January 23, 2023

Removed parts of the valve train and cylinder #1.

A couple more steps to take apart the engine. First, I removed the rocker arms, the push rods, and the push rod tubes.

Driving out the rocker arm shaft.

Shafts required some tapping to get out. To do that, I used an aluminum drive pin and a long piece of a drill rod that I can put through the pin of the other cylinder.

Rocker arms removed.

Then I removed the cylinder #1. I had to grind my wrenches a bit, so they fit better. They still don't get fully on the nuts, so I will either need to grind them more or find better wrenches when I am ready to install new ones.

The cylinder #1 is pulled.

I saved some money and did not buy the tool to remove the pin, so I need to make one myself, to remove the piston from the connecting rod.

The cylinder on the outside.

The cylinder #1.

The inside looks pretty good to me. Not an expert, but the color looks like a healthy steel color to me (no overheating). I can see the original cross-hatch marks. There are a few flat spots, but that's probably expected for a 2000-hour cylinder?

The inside of the cylinder.

I am probably going to make some minimal effort to keep them, and possibly throw them away a few years later!