Just surfing the web on snowmobiles ran across this site and was very impressed, seemes to be very helpfull. well anyway my boy has a 91 prowler that burns the inner oring out within 100 miles.then blowes antifreeze out overflow and overheats.i have changed all antifreeze,changed thermastat,temp sender,head o-rings 3 times,and made sure all air out of system.i have made sure head is straight ,also checked waterpump.Has anyone had this problem before? if so i could really use some help. thanks
91 prowler440 burning head o-rings
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