Thanks for that David. I see what you mean.

I rebuilt this inline 4 cylinder ABA but the only head work done by
the machine shop was check for warpage, excessive valve guide wear and
install new guide seals. I have no idea how worn the lifters are. If
the lifters are quite worn and bleed down faster than normal, I wonder
if that causes the heads' oiling circuit(s) to lose its' prime. i.e.
what would an oil gauge on a spare port where the "high" pressure oil
switch is show after engine sat unused 4 or 5 days?

Neil.

On 10/27/18, dbeierl <dbeierl@gmail.com> wrote:
>>
>> that the lifters may be bleeding down after 4 or 5 days.
>
>
> Any lifter under an open valve at stop is guaranteed to bleed down --
> that's the only mechanism the lifter has to accommodate decreased
> clearances in the system (oil leaking through the clearance between lifter
> wall and piston).
>
> Yrs,
> d
>

--
Neil n

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