here's the water pump pulley spanner wrench.
pricey little bastard. $33 shouldn't cost but 10.

http://www.sjdiscounttools.com/lis44180.html

 

Especially if you make it on your own. Can't believe they want almost 35 bucks for one of those. I don't have a welder but I have access to one at work, I may just make one up. probably can find scraps of metal around the welding shop too.

I will plan on doing it over a long weekend.

I got to thinking, I might shoot for thanksgiving week and do it in my dads garage. His compressor is better than mine and his garage is bigger and can heated.

 

I got a little propane torpedo heater just for working on the truck in the winter. I prop it up behind me and say hello to roasted walnuts.
Holy crap, mine cost something like 6$.
I used a couple little pieces of a dowel rod that I already had for mine, but the handle off an old push mower or a junk screwdriver would work just as good.

Measure the holes in your water pump to get your wrench close and just tack the dowels on one side then see if it fits. Just having one side tacked on will allow you to twist it to make it fit if you're a little off.

 

I believe cam sprokets are only hold in by one bolt. Taking that one bolt out with a puematic drive makes it easier and don't need to worry about the sprocket turning. After that bolt comes out, just wiggle it slightly and it will come out.

 

I would avoid wiggling it for fear of turning the cam just as the sprocket clears and screwing up the timing.

 

It takes alot of effort to turn the cam and wiggling it slightly won't mess with the timing. I've used this method a few times and never ran into a timing problem. When putting on the new chain and gears, everything lined up as the way I pulled the old chain and gears off.

 

Well I already had the 3 jaw puller handy and I spun the bolt on it by hand to pull the cam sprocket off.

 

I used a heel bar to gently pursuade the sprocket off. A little pry on each side alternately and off she came.

 

I had a reliable (former Dodge Dealership until last year) shop quote me $130 labor to change just the water pump, gasket and serp belt. Parts were quoted at $120 for a new Mopar water pump, gaskets and serp belt. This sounds like a decent price if it's 1-2 day job to DIY. My time is valuable and I'm not nearly as young as I used to be, so thinking of having a pro do it this time.