March 2003 - Around the engine
 
Once again, I had to disassemble something that I had already installed back on the car.  This time it was the water pump. Because the SB Chevy pump pulley was rubbing against the pump housing, I used a puller to bring the flange farther away from the housing - only I pulled it too far. Now there wasn't enough shaft protrusion to center the pulley & fan on the shaft, so I had to disassemble the pump to press back and relocate the flange. While at it, I also replaced the old freeze plug on the head, which I had forgotten to replace before installing the pump. I also straightened the made-in-taiwan chrome pulley (aaarghh), by bolting it onto the loose shaft/flange, spinning it on a lathe, and giving it a few concentrated hammer blows. It still waddles but not too much.

Otherwise I've been busy installing the alternator, inner fenderwells, wiring, fabricating a new battery tray, etc. 

HeadersI finally got my self-made header from the plating shop, and was more than pleased with the quality of the job, given that the header was NOT buffed or polished prior to plating! It was simply plated as is. They applied a HEAVY layer of copper, then nickel and chrome. No, they didn't polish the copper either. 

Everyone says you have to polish the surface to a mirror finish before plating, but have you ever taken a look on some office furniture and wondered if they polished those table legs before chrome plating? You can bet they didn't. 

Engine
Notice the engine turned stainless panels on the inner fenders? The fenders were so roughly finished at the factory, add some corrosion and warping, that I had to figure out something to cover them up. For engine turning, I first tried the old dyed-in-the-wool method of using a hardwood dowel with some valve grinding compound. That didn't give satisfactory results - the pattern was neither uniform nor shiny (though I later discovered that it makes a difference which kind of compound you use). I ended up using a buffing compound instead. Compounds for stainless or rough cutting (emery compound) work best. I also tried fixing a piece of 600 grit wet sandpaper on the dowel with contact cement, and it gave a perfect pattern, but only a handful circles before loading up. Watering the panel, to prevent loading up, made the paper come loose and break.

I had to fabricate an indentation on the passenger side fender to clear the alternator. It was a bit tricky as you cannot just break the wall to the fresh air inlet and leave it like that. On the other hand, I couldn't move the alternator closer to engine, either - the alternator fan would chew up the lower radiator hose! To replace the belt, I have to remove the lower hose. 

Notice the modified rigging screw belt tension adjuster. Later I found that this setup caused a coolant leak where I have the upper pivot point of that screw - the bolt goes straight through the thermostat housing - using sealer on the threads makes no difference as the whole bolt is exposed to coolant! The factory used copper washer under the bolt head, but it won't work for me.

Also notice the stainless cover over the solid-core plug wires, and the Flamethower chrome coil behind the distributor. There's not much clearance between the battery and the oil filter. 

 I'm planning to fire up the engine anytime soon to celebrate Buicks's centennial !

 

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