Must-Do Items Before Trying to Start a ’57 ?

[lindy46]

My 1957 Lark (basically the same motor) ran about 120psi on both cylinders.

[mas]

Yes…low pressure numbers.

The rings may be a little sticky and/or the cylinders may be very dry.

I’d lube up the cylinders a tad with fogging oil as you mentioned.

If you can get it to run, those compression numbers are likely to go up.

Also, it’s a possibility the compression relief valves are not fully seated and the PO removed the lever to remedy…but without success????

Mas

[markpj23]

quote Chris_P:

..Did you use electric starter to test?

Yes electric starter

[lloyd]

80 psi IS way too low for that motor. Should be about 125 as I recall. Compression relief valves may be stuck open or leaking ?

[Author]

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