With the high pressure lines removed, there is a centered hole approximately .080" in diameter at the bottom(doesn't appear to be threaded). A punch inserted into this hole detects nothing moving at the bottom of it. With a strong light I can't see anything passing by.
The pump mounts with the triangular flat gasket. Was firmly attached. Gear was tight, and turned about 120 degrees out, with the gear's keyway raising a burr which I at first thought was a key.
Safe to assume that it is badly broken inside? I have 20+ pieces of equipment around here with DPAs, I have had lots of leaks, but never a mechanical failure like this.
Are parts available reasonably, or am I better to find a core from under my workbench to use as a donor? Thanks again
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Today's Featured Article - Engine Valves - Some Helpful Information - by Staff. Intake - On the intake stroke the piston moves doward, sucking in carburized fuel through the open intake valve. Exhaust valve is closed. Compression - With both the intake and exhaust valves closed, the pistons upward stroke compresses or squeezes the fuel into the combustion chamber. Firing - Ignited by the spark, the compressed fuel explodes and forces the piston downward on its power stroke. Intake and exhaust valves are closed. Exhaust valves and seats are exp
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