Don't know 'bout the origins of those pistons... but I broke down a motor a
couple years ago...that had obviously experiences a relatively recent minor
rebuild... replacing a piston and putting in new rings... (no bottom end
work)...
Like you... many of the rings were broken... and in pieces.
My assumption was... whoever did the rebuild... was probably an amateur... and
he didn't check his ring tolerances... hence when they expanded... they had
nowhere to go! (you know what I mean)
Just throwing that into mix... in addition to the possibility of a lot of
mileage and/or a poor piston design.
--Justin
WEmery7451@aol.com wrote:
> Dear Fot:
>
> After counting engine heads in the garage and trying to remember how many
> heads were sold and scrapped, my estimate is that I have torn apart
> approximately fifteen different engines over a period of 36 years. Some of
> you have disassembled many more.
>
> This last engine had weird looking pistons, and I wondered if they were one
> of British Leyland's designs or options, or someone else's pipe dream. The
> pistons were flat domed with the normal two compression rings and one oil
> ring above the connecting rod to piston pins. Below these pins was an
> additional oil ring.
>
> The engine either had seen a lot of mileage, or the piston design is poor.
> The top compression ring was broken on all four pistons, and small pieces
> were broken out of three of four pistons at the top compression ring. Just
> curious, Bill Emery
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