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06-14-2010 | 04:35 PM

#277

DarZeelon

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From: Rosh-HaAyin, ISRAEL

RE: Tapered-Bore Engine Break-in - Upgraded

BW,

The alloys used by manufacturers to make an ABC P+L set differ very little amongst themselves.

The difference is so small, in fact, that the a procedure correctly outlined, by one manufacturer, can closely be followed for engines made by another manufacturer.

The differences in the materials; which are practically the same, may be in cleanliness and purity; not in actual material choice.
I.e. brass is brass, whatever alloy is used. Only some of these alloys are suitable for cylinder sleeves and those used by all engine manufacturers differ so very little that one procedure is suitable for all of them. Especially when some of the break-in processes are written by the company's PR dept..

The same goes for the high-silicon aluminium used in the piston and chromium just is (there are few that still do it - I am not sure what process is used).
All use the same plating process.

The same goes for other coatings (AAC/ABN)...

The procedure outlined for the Magnum ABC engines, was apparently written for ringed engines...

Differences between the manufacturers instructions stem more from ignorance, disregard and 'foreign interests'; than from an actual choice of materials.

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