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AMC oil pumps are integral with the aluminum timing cover and are externally accessable. Try the vasoline trick. If that doesn't work, just start the damn engine. On my AMC 401, I primed and primed and primed and nothing. Never could build pressure (don't know why), but we got frustrated and fired it off anyway and I had pressure within seconds. I knew that the cam was really well lubed, and I'd also made sure to oil everything during assembly, so I was a little worried, but not paranoid. Anyhow, it fired right away, and I watched the guage real close while Tom adjusted timing and fuel. No problems on mine, years later Edit, why are you priming it / why the new pump? Is it a new engine or are you just trying for more oil pressure?
AMC oil pumps are integral with the aluminum timing cover and are externally accessable. Try the vasoline trick. If that doesn't work, just start the damn engine. On my AMC 401, I primed and primed and primed and nothing. Never could build pressure (don't know why), but we got frustrated and fired it off anyway and I had pressure within seconds. I knew that the cam was really well lubed, and I'd also made sure to oil everything during assembly, so I was a little worried, but not paranoid. Anyhow, it fired right away, and I watched the guage real close while Tom adjusted timing and fuel.
No problems on mine, years later
Edit, why are you priming it / why the new pump? Is it a new engine or are you just trying for more oil pressure?