manual tilt problems

[caveman351]

Hi guys i have a problem with a 75 model 70 h/p engine with a manual tilt, it had been sitting in the up position for about 3 months and has since jammed up there and i can't figure out how to get it down. I've tried to lubricate it with wd40 have jacked it up to take the pressure off it but it just won't come down. Any ideas out there for me to try would be much appreciated cheers Jason