Re: '40 110 brake drum interchange?

Posted by tsherry On 2020/6/3 21:34:08
More progress on the '40 110 over the past week or so. Here's an overview.

-All four wheel cylinders and the master were seized up. Fluid was present in the master cylinder, however.

-Three drums were in pretty good shape along with the shoes, minimal amount of rust inside; fourth looks like it's out of round and impact-damaged, shoes on that wheel were destroyed. Wheel bearings on that wheel, RF, were also shot. All drums were cleaned up with a wire wheel and solvent.

-LF hose has the consistency of a fresh gummy bear, and was partially wrapped in medical grade cloth adhesive tape, looking like 1960's vintage. That hose was also 'solidly' packed with congealed hydraulic fluid.

-RF and rear hoses were in better shape, with minor cracking on the outside.

New hoses were bought at NAPA this morning (they had them in the catalog and our regional warehouse where I shop had them on the shelf); I managed to free up all wheel cylinders after pushing out the pistons with a C-clamp and appropriate sized deep sockets used as rams--similar process to pushing out king pins on my '37. All cylinders were run through an electrolytic de-rusting process for several hours to a day each. Cylinder bores were honed out with regular cylinder stones and cleaned up to be quite serviceable, which surprised the Hell out of me. I need to assemble the front cylinders, check all the lines, then reinstall the master after bench bleeding. Might have brakes again this weekend. Then, onto the engine, to get it running again for the first time since about 1995. That'll be another story.

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