The roar of a chevy four?- oil pressure?

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#55630 - 03/23/05 07:15 AM Re: The roar of a chevy four?- oil pressure?
rbl2 Registered: 03/07/05 Posts: 834 Loc: Monticello, Ms	Walt said: "To keep the record straight! the 1927 "Capitol" AA series and the 28 "National" AB series have 30 pound oil pressure indicating gauges." How can I tell if I have one of those engines? My push rods are covered and the engine at one time had an oil filter. This is why I believe it is a '28. _________________________ Bill
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#55631 - 03/23/05 09:18 AM Re: The roar of a chevy four?- oil pressure?
AntiqueMechanic Registered: 12/02/01 Posts: 7721 Loc: Vancouver, WA	If it has a single exhaust outlet it is NOT 1928. If it has two exhaust outlets into a single pipe the HEAD is 1928, but the block may be earlier. If it has side covers it is most likely 1928 also. To be exact: read the dates on the block and the head. Walt is correct on the maximum reading on the oil pressure gages for the 1927/28. Can't verify the average reading listed. Both the 1927 and 1928 engines use the same oil pump, and oil distribution valve assembly. _________________________ RAY Member Chat Group - Non-Geographical Region Chevradioman http://www.vccacolumbiariverregion.org/ If I had known that growing old would be this much fun---I'd have done it sooner!
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#55632 - 03/24/05 04:50 AM Re: The roar of a chevy four?- oil pressure?
Maxie Shade Tree Mechanic Registered: 02/27/05 Posts: 73 Loc: Wichita, Kansas	Yep! The manual says 8 lbs for the AA and 12 lbs for the AB. After warmed up, my 28 runs 13 to 14 lbs at road speed and 8 to 9 at idel. Maxie. _________________________ "Preserving the old fashion way... for the fun of it."
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