Am 118. Tag hatte ich die Ventile des ersten und zweiten Zylinders eingestellt. Die Ventile des dritten und vierten Zylinders hast ich aufgeschoben um erst neue Dichtungen und neues Silikon zu besorgen. Heute werde ich die restlichen Ventile einstellen.
Die Ventildeckel befinden sich hinter dem Ansaugkrümmer. Hinter dem linken Deckel befinden sich die Ventile des dritten und vierten Zylinders. Um diesen zu öffnen, muss man erst ein wenig Platz schaffen. Das ist aber hier keine großer Aufwand.
On the 118th day, I had adjusted the valves of the first and second cylinders. The valves of the third and fourth cylinder I have postponed to get new seals and new silicone. Today I will adjust the remaining valves.
valve covers are located behind the intake manifold. Behind the left cover are the valves of the third and fourth cylinder. To open this one, you have to make a little space first. But that is not a big effort here.
First, the control rod for the mixture adjustment of the carburetor is pulled away upwards.
Then remove the sheet metal pipe for the carburetor air preheating.
After that, it is very easy to get to the central screw plug of the valve cover.
I'll start with the 4th cylinder. There is some work to be done here. The exhaust valve has a clearance of 1.15mm, the intake valve 0.9mm. The valve clearance should be between 0.4 and 0.8mm. Maybe that is the cause of the engine chatter.
Next day: First I made myself two wrenches with which I can adjust the valves. I ground the wrenches thinner with the angle grinder and filed the jaw width from 9mm to 5/16'' (9.5mm).
The cover on the third and fourth cylinders came off much better. I was able to use the gasket again.
The valves were equipped with adjustable valve lifters. This is not original, but very helpful. There are two variants of the adjustable valves. A screw with lock nut and a screw without lock nut. The screw without lock nut has such a heavy thread that the lock nut is not necessary. Werner has installed both versions for me. I must ask him on occasion whether he has allowed himself a joke here. But it doesn't matter, so we can compare both variants directly here. In the following picture I marked the adjusting screws with green arrows, the lock nut with blue arrows and the tappets with yellow arrows.
When installing the spark plugs, I sealed the second spark plug with Teflon tape.
During the test run, the engine sounded better than before the valves were adjusted. Also, the engine now feels like it has better power. I was able to drive the car up hills in fast gear now where it had problems before. However, there is still the rattling from the engine. It is especially loud when standing in front of the radiator. I now suspect the fan. I will check that out tomorrow.






