Re: Engine

Posted by fred kanter On 2010/11/19 19:29:38

Four points:

1.All valve guides fropm 1948 up (and posibly earlier) wewe made with the relief as orig equpt. The purpose is to make a small reservoir to lubricate the valve stem and prevent sticking.


2. Alcohol and the removal of lead do not present a problem to, for example, 1962 Fords or 1971 Cadilacs which wewe designed for leaded gas. Therefore it will not present a problem for older Packards. The major problem of unleaded gas for older cars is if they are driven under severe load, such as towing a trailer, the MAY burn valves. There was a "the sky is falling" scare spread years ago about all pre-unleaded cars needing to be retrofitted with hardened valve seats, but no mass calamity has happened.

Also unleaded Amoco gas was sold for 40+ years and those cars did just fine.

3. The 35-47 small motors 120 (3 1/4") bore had an intake with 4 unevenly spaced carb mounting studs, thus using one type of adapter. The 3 1/2" bore 40-50 356" and the 48-54 288, 327, and 359 had evenly spaced studs , and thus another adapter.
The 288 is NOT a 282 with bigger pistons It is an entirely new engine which is longer and had bigger bore spacings.

A top oiler is "cool" but entirely unnecessary. In addition , oil will be burned in thje combustion chamber thus polluting the environment. It is bad enough that our vehicles run "dirty" in today's standards without adding to the problem.