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HELP Low/No Oil Pressure on AMC 360

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dltowers View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote dltowers Quote  Post ReplyReply Direct Link To This Post Posted: May/26/2022 at 11:22pm
Joseph, FYI....

Original Owner, 1974 Javelin:
360ci,2v,727TC. Motorola Multiplex with 8-Track.
G4 Plum exterior with 421Q Black Uganda Interior. Purchased on July 16, 1974 from Hooker AMC, Sherman, TX for $4500.20
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Hurst390 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Hurst390 Quote  Post ReplyReply Direct Link To This Post Posted: May/27/2022 at 2:27pm
You dont need assy lube in the pump to get a prime. Fill the filter with oil and spin the pump backwards till you feel a prime then turn the pump clockwise to pre lube the engine
SC/Hurst Rambler

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Boris Badanov View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Boris Badanov Quote  Post ReplyReply Direct Link To This Post Posted: May/29/2022 at 8:50am
Obviously, a stock 360...

Try packing or priming it.

OR maybe the oil pan pick up spacer
is disloged allowing the pick up to be
against the bottom of the oil pan
cutting off all oil supply.

Another common issue is the broken exhaust valve stem seals
blocking the cylinder head oil returns.
But with this one you get oil pressure for
a minute or so before the oil light coming on.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote BBO UK Quote  Post ReplyReply Direct Link To This Post Posted: May/29/2022 at 9:38am
How thick is the new gasket, and was there damage to the pump housing end plate, as there needs to be minimum clearance there to generate good pressure, if it was a new car I`d say test the sensor, you should put a different meter on there to check the actual pressure.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote tsanchez Quote  Post ReplyReply Direct Link To This Post Posted: May/29/2022 at 11:53am
Make sure the gasket was the same thickness as old or measure gear clearance. then pack like said above. 

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Post Options Post Options   Thanks (0) Thanks(0)   Quote bigbad69 Quote  Post ReplyReply Direct Link To This Post Posted: May/29/2022 at 3:16pm
It sounds like everything was working fine, but the pump was leaking. Plumbing in a pressure gauge for peace of mind won't hurt, but isn't absolutely necessary IMO.

From the sound of it, you didn't pack the gears in the pump, so it didn't start up. As you can see, there are various tricks people use that requires removal of the distributor. I see no reason to do that when all you have to do is pack the gears with Vasoline as the TSM states. If you have the distributor out for other reasons, then those tricks are valid.

It would be a good idea to compare the thickness of the new gasket to the old one, but it's probably good. Just make sure to get ALL of the old gasket off the pump housing/end plate. Failure to do so could result in more leaks, or excessive end play in the pump gears, which will kill oil pressure.
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