I have SSB Electronics transverter LT2S. Its 116 MHz crystal oscillator
is about 500 Hz off the frequency eg. running somewhere 116 000, 500 kHz.
How could this be tuned to pulled 116 MHz? Or is even impossible/too hard to
do?

See picture http://www.g1ogy.com/projects/LT2S/page13.jpg

The oscillator is T1/Q1 I am talking about. Any ideas, any help?

73 Pasi, oh2pt,