[Healeys] playing detective

[Alan Seigrist]

Greg -

Before cracked ring I'd guess scored cylinder...

Alan

On 9/28/07, Greg Lemon <glemon at neb.rr.com> wrote:
> OK, I'll bite, cracked piston ring on installation?? can you test by holding
> something flat and slightly larger than the cylinder against the top of the
> block while turning the motor on the starter, compare the suction and push
> you get with the other cylinders.
>
> I don't know if a cracked ring gets you to zero, I would think it would just
> lower compression.
>
> Pushrod not properly seated in a lifter hence valve motion not appropriate??
> (probably would have noticed when adjusting the valves)
>
> Sticking valve?  Valve guide pushed in too far (probably not if valves are
> sealing properly when the head is not installed.)
>
> Did you turn the motor over either by starter or hand when the head was on
> and valve cover off to see if the valves were all moving as they should at
> least to the eye?
>
> Good Luck
>
> Greg Lemon
> 54 BN1