. That's a no-no on sending units because it's an insulator. Anti-seize is a good thread sealer for this application.
Oil pressure reading
Fleet Owner
Joined: Jul 2004
Posts: 27,294
Likes: 1,055
From: NM
Regardless, if you really want to know what your oil pressure is, put a mechanical gauge on it, a good one. Even with the proper sender, your dash gauge is just an idea of what the pressure really is.
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Mountain Pass
Joined: Nov 2018
Posts: 172
Likes: 18
Update
So I installed the accurate oil sending unit from Dennis carpenter and the oil pressure barley moves when stationary and giving it gas, when driving the gage does not move. Could I have a worn out motor? Oil level is slightly low. 1949 ford f1 flat head six.
Logistics Pro
Joined: Sep 2014
Posts: 4,920
Likes: 21
From: Bothell & Silverdale, WA
Do you know how many miles are on the engine, and have you ever dropped the pan?
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Mountain Pass
Joined: Nov 2018
Posts: 172
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No I have not used a mechanical gauge to check, and this sending unit does not have Teflon. I don’t know how many miles are on this engine and I have never dropped the pan. I plan on rebuilding the engine soon though, so that’s really why I have no lt done all of the above.
Logistics Pro
Joined: Sep 2014
Posts: 4,920
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From: Bothell & Silverdale, WA
Replacing the sending unit did not change anything, so the problem lies in the wiring or the gauge is defective.
Senior User
Joined: Sep 2006
Posts: 198
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The redneck way to check if you have oil pressure is to loosen the bolt on the oil filter canister lid. Do not remove the lid, just crack it open a bit. If you have pressure while the engine is running, oil will leak out of the oil filter canister and run down the side. Obviously this is just a quick function check of the oil pump.
Anyone who has replaced the filter and not seated the lid gasket properly has seen this. Or so I've been told, by someone else.
It does sound like an electrical problem as opposed to mechanical, but it's an easy check if you're not sure.
Anyone who has replaced the filter and not seated the lid gasket properly has seen this. Or so I've been told, by someone else.
It does sound like an electrical problem as opposed to mechanical, but it's an easy check if you're not sure.
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Knuckle Bandage Sales Rep
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That gasket being properly seated on the filter is pretty darn important.
Tom
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