The ports don't look good but give it a go .

The 50/50 mix works really well, I use KROIL, in the past I've un stuck old air cooled VW engines using fresh Diesel fuel.....

As mentioned, you have to have patience and BE GENTLE ~ use a long cheater on the crank bolt and work it back and forth, forth and back ~ the *instant* you feel resistance, STOP and reverse the turning direction, keep doing this until you get a 360 degree rotation .

__________________
-Nate
1982 240D 408,XXX miles
Ignorance is the mother of suspicion and fear is the father

I did then what I knew how to do ~ now that I know better I do better