Oil pressure

AA Ford Discussion Group relating to the repair and restoration of your AA Ford.
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1wonton
Posts: 109
Joined: August 31st, 2013, 4:37 pm
Body Type: Express
Model Year: 1929
Location: Vallejo, Ca

Oil pressure

Post by 1wonton » February 9th, 2018, 4:53 pm

I recently picked up a '29 AA t5ruck that has been sitting since 1951. After breaking the engine loose, freeing up a couple stuck valves I finally got the dependable old Model A started. It has been rebuilt (I guess) sometime in the past since it has adjustable valves. It has an old pressure gauge and when warm it still shows 15# oil. I didn't think these engine would produce that kind of pressure> Why?

Stakebed
Posts: 1111
Joined: June 14th, 2007, 7:29 pm
Body Type: Grainbox
Model Year: 1929
Location: Illinois

Re: Oil pressure

Post by Stakebed » February 9th, 2018, 9:27 pm

prolly cuz the oil gauge is junk. Could have old oil in the line thats now roof tar. should be like 3psi...model a is a volume pump not a pressure pump.

1wonton
Posts: 109
Joined: August 31st, 2013, 4:37 pm
Body Type: Express
Model Year: 1929
Location: Vallejo, Ca

Re: Oil pressure

Post by 1wonton » February 10th, 2018, 5:35 am

Oil gauge good and new 30 wt oil. I haven't pulled the pan; wonder if they put some kind of high-pressure pump.

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