Aligning dish for euroasiasat 42 degree east

Please can some one advise me best way of getting this signal.I have tried with 80 cm dish and can get to eurobird 28.2 very easily but then on moving dish further towards east i cannot find turksat 1c or euroasiasat 42 degree east at all. I have tried using my old analogue receiver to pick signal and also use signal bar chart on my digital comag receiver.

Do i need a bigger dish such as 100 cm or above ? how far should i go east from eurobird and angle elevate to get postion approx.

many thanks for help.