97 Passport Timing Belt Replacement

Ok i found a thread on here that was very detailed about the replacement of a timing belt on a 97 passport but a few things were left unsaid pertaining to my current issues trying to complete this job. One is that someone said that a 3.2L was NOT an interference engine but my haynes manual says it IS and i was just wondering if there was just some confusion on the subject. Also my belt didn't techincally break, my camshaft just shredded the teeth off of the belt where it was on my last attempt to start my engine.. and i was wondering if this could mean it is something other than my belt just being old. The last thing is that Im having an extremely difficult time alligning my camshaft pulleys. When i try to line them up manually with the front bolt they will turn (very difficultly) to a certain point and then the jump prolly a quarter of a turn without being stopped. I know this has something to do with the pistons and i dont know much about cars to know exactly but how am i suppossed to get the camshaft pulleys lined up if they only go where they want. I hope this is clear enough for someone to help, and i would greatly appreciate ANY advice on the manner.

I unfortunately not familiar with your engine, but it you have difficulties rotating the camshaft, try to remove spark plugs. It may be due to compression that you cannot rotate it.

I hope this helps,

Sam