Tuesday, January 12, 2010

We Will Pump You Up, Girlie Men

Well, today I started the, much anticipated, water pump project. My goal is to build a belt driven pump, using an easily available automobile unit. I have never trusted the Jabsco pump that BH uses. If it conks out, you're screwed unless you're near a marine supply house or you carry a spare. I searched for quite a while for a fairly compact pump with a simple round housing. I finally settled on the Chrysler 383/440/Hemi unit. As it turns out, I was not the first to "discover" the MoPar unit. Another V-8 biker also has experimented with it with good results. There is also a remote mounted pump for V-8 Porsche conversions that uses it, so, it would seem, I'm in good company. I whistled down to my local parts house and they ordered it for me. I had to wait an agonizing 1 hour for it to arrive. Upon getting it home and having a look at it, I think it will be an easy and fun project.
The first thing I did was to glue together 3 pieces of 3/4" plywood for the pattern for the housing. I will be casting it from aluminum using my little foundry furnace. Plywood isn't the best material for patterns because of the rough edges. I will have to spend a bit more time finishing the edges with putty and getting it nice and smooth so I can pull it from the sand mold.

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