2012 December 12: Acid wash engine and transmission cases (4.15 hours)

Updated: 2012 December 12

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I soaked the crankcase, sump, timing chest cover, transmission case, and transmission rear cover in oxalic acid for 7 ¹⁄₂ hours today. Overall, the cases turned out fantastic. I have a bit of work to do on the crankcase due to some shadowing, but overall I am thrilled. I even got all of the battery acid stains on the transmission case removed. Amazing!

I assembled the tranmission layshaft and placed the thrust washers on the front of the main shaft.

I cleaned the parts for the generator and distributor.

I tossed all the spokes and nipples in degreaser for the night.

Before cleaning with oxalic acid. — Before cleaning with oxalic acid.
Photo courtesy of Gregory Bender.

Before cleaning with oxalic acid. — Before cleaning with oxalic acid.
Photo courtesy of Gregory Bender.

Before cleaning with oxalic acid. — Before cleaning with oxalic acid.
Photo courtesy of Gregory Bender.

Before cleaning with oxalic acid. — Before cleaning with oxalic acid.
Photo courtesy of Gregory Bender.

Before cleaning with oxalic acid. — Before cleaning with oxalic acid.
Photo courtesy of Gregory Bender.

Before cleaning with oxalic acid. — Before cleaning with oxalic acid.
Photo courtesy of Gregory Bender.

Before cleaning with oxalic acid. — Before cleaning with oxalic acid.
Photo courtesy of Gregory Bender.

Before cleaning with oxalic acid. — Before cleaning with oxalic acid.
Photo courtesy of Gregory Bender.

Before cleaning with oxalic acid. — Before cleaning with oxalic acid.
Photo courtesy of Gregory Bender.

Before cleaning with oxalic acid. — Before cleaning with oxalic acid.
Photo courtesy of Gregory Bender.

Before cleaning with oxalic acid. — Before cleaning with oxalic acid.
Photo courtesy of Gregory Bender.

Before cleaning with oxalic acid. — Before cleaning with oxalic acid.
Photo courtesy of Gregory Bender.

Before cleaning with oxalic acid. — Before cleaning with oxalic acid.
Photo courtesy of Gregory Bender.

Before cleaning with oxalic acid. — Before cleaning with oxalic acid.
Photo courtesy of Gregory Bender.

Arranging parts in giant tub. — Arranging parts in giant tub.
Photo courtesy of Gregory Bender.

Oxalic acid cleaning the parts. — Oxalic acid cleaning the parts.
Photo courtesy of Gregory Bender.

Cleaned parts. Generally a very nice match amongst all the cast aluminum parts without the change in appearance that comes from blasting or using other acids that alter the color. Precisely the original look I was after. — Cleaned parts. Generally a very nice match amongst all the cast aluminum parts without the change in appearance that comes from blasting or using other acids that alter the color. Precisely the original look I was after.
Photo courtesy of Gregory Bender.

Some shadowing I'll address with some more oxalic acid. — Some shadowing I'll address with some more oxalic acid.
Photo courtesy of Gregory Bender.

Battery acid staining is gone! — Battery acid staining is gone!
Photo courtesy of Gregory Bender.

Cleaned pieces and parts for the generator and distributor. — Cleaned pieces and parts for the generator and distributor.
Photo courtesy of Gregory Bender.

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