It's easy enough turning it on the starter (which is how you normally do it,
you can't fire the engine with the plugs out), but I don't know if you could
build up significant compression turning the crank by hand. I mean, it will
tend to leak down a little as you ratchet around slowly -- I don't think
you'd get a meaningful reading. Usually you crank it at least 4-5 strokes to
get a reading.
But it doesn't matter if the rest of the car runs -- all you need is a
battery and the starter in place.
on 3/29/02 4:24 PM, BarrMark262@aol.com at BarrMark262@aol.com wrote:
> I forgot to ask this earlier, is it possible to do a compression test on a
> non-running car; in other words turn it by socket placed on the end of the
> crank?
>
> I am sure it is a dumb question, but I am just curious.
>
> Thanks
> Dennis
>
--
Max Heim
'66 MGB GHN3L76149
If you're near Mountain View, CA,
it's the primer red one with chrome wires
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