Tractor Repair: squeaking noise, cylinder number, water pump

Question
ok i have a 766 HI with turbo and just a month ago it started to make a squeaking noise once in a while at the same rate as the engine like if you speed up the engine the squeaking goes faster and same gets slower is engine slows down and i have a exhost leak above cylinder number 6

Answer
If the squeaking is coming from the front of the engine the check your alternator and water pump.
Remove the belt and spin it see if it makes noise or feels ruff. If the noise is coming from the center of the tractor the it is probably your throw out bearing of your clutch.