Your note on the mechanical seal is much appreciated. I remember
when I rebuilt my TR3 engine a friend (who worked for Standard
at one time) advised me not to touch the seal because it was a pain
to readjust and not to boil the block in acid because it would ruin
the aluminun seal/mechanism. Ultimately, the block was boiled in oil.
It appears to have been good advice because everything came out in fine
shape. It's never been a problem.
Mike Walsh
Potomac, Md
> In reality there is no "seal" at the back of a TR Vanguard type
> engine. There is what we like to call the "magic scroll". A scroll
> is machined into te crank which as the engine turns "encourages"
> the oil to drain back in the direction of the oil pan. It acts on
> a similar principal as an auger bit in displacing soil. There is
> also an aluminum split shell that bolts to the back of the block
> through which the crank end passes. This aluminum shell fits very
> close to the crank surface but does not touch it. This seems to act as
> a secondary line of defense if the scroll becomes too inundated with
> oil. If all these parts are in good shape then very little oil will
> make it out of the engine to foul our planet or your driveway.
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