I just purchased a John Deere 316 with the B43e Onan. looks like a deck spindle job is in the plans. The main drive pulley on the deck is tilted down at the front and is not level. Is this normal or do i have a problem with it.
The first thing to do is to check your deck "level". JD recommends that your blades be 1/4" lower in the front. Level the deck side to side first using the single adjustable lift link. Then, front to rear by adjusting the mule drive yokes. Also, anti-scalping wheels should 1/4" - 3/8" off the ground with the deck fully lowered. After leveling your deck, if your pulley still looks "downhill", your deck is probably bent where the spindle mounts. Take a close look at this area on all 3 spindles. With a little effort, and maybe a lot of cursing and 4 or 5 beers, you can straighten it out. If it's rusted badly in that/those area, you may want to consider reinforcing rings, usually available on e-bay. You are going to HAVE to identify your deck model so you can get the correct rings.
Check your level and go from there. We're here to help. Bob