The Ford Barn

nesloyrag77 · 07-24-2019, 09:04 PM

Drove to Duece days in Victoria BC, oil pressure good came home after dark oil pressure 0 on the gauge, made it home no noises, how do I check the sending unit? gauge?Oh ya 40 Merc
help

Gene1949 · 07-24-2019, 09:35 PM

sounds like electrical (come home after dark)

Tinker · 07-24-2019, 09:37 PM

Try a mechanical to test. If mechanical is fine, then track it through electrical. A cheap mechanical can bought most anywhere and are fairly accurate.

JSeery · 07-24-2019, 09:56 PM

You can check the gauge with a 1 1/2 v battery. There are check procedures in previous post. But, as Tinker posted, I would install a mech gauge to be sure what the engine oil pressure is first.

nesloyrag77 · 07-25-2019, 07:29 PM

found the problem the sensor was bad, what a challenge to get it out, had to cut and weld up 2 wrenches to get that stupid thing out, grounded the sensor gauge went to high oil pressure, new sensor coming

Tinker · 07-25-2019, 09:30 PM

Sponsored Links (Register now to hide all advertisements)

Glad you figured it out!!!

Personally I like to put a mechanical on to test out the electric gauges anyway.

.

Ol' Ron · 07-26-2019, 10:12 AM

With no oil pressure, the engine will seize up in just a few minutes. How do I know??

07-24-2019, 09:04 PM	#1
nesloyrag77 Junior Member Join Date: May 2019 Posts: 4	Oil pressure Drove to Duece days in Victoria BC, oil pressure good came home after dark oil pressure 0 on the gauge, made it home no noises, how do I check the sending unit? gauge?Oh ya 40 Merc help Last edited by nesloyrag77; 07-24-2019 at 09:05 PM. Reason: for got car

07-24-2019, 09:35 PM	#2
Gene1949 Senior Member Join Date: Jun 2016 Location: Pahrump, NV Posts: 374	Re: Oil pressure sounds like electrical (come home after dark)

07-24-2019, 09:37 PM	#3
Tinker Senior Member Join Date: May 2010 Location: MN Posts: 7,053	Re: Oil pressure Try a mechanical to test. If mechanical is fine, then track it through electrical. A cheap mechanical can bought most anywhere and are fairly accurate. Last edited by Tinker; 07-24-2019 at 09:44 PM.

07-24-2019, 09:56 PM	#4
JSeery Member Emeritus Join Date: Nov 2012 Location: Wichita KS Posts: 16,132	Re: Oil pressure You can check the gauge with a 1 1/2 v battery. There are check procedures in previous post. But, as Tinker posted, I would install a mech gauge to be sure what the engine oil pressure is first.

07-25-2019, 07:29 PM	#5
nesloyrag77 Junior Member Join Date: May 2019 Posts: 4	Re: Oil pressure found the problem the sensor was bad, what a challenge to get it out, had to cut and weld up 2 wrenches to get that stupid thing out, grounded the sensor gauge went to high oil pressure, new sensor coming

07-25-2019, 09:30 PM	#6
Tinker Senior Member Join Date: May 2010 Location: MN Posts: 7,053	Re: Oil pressure Sponsored Links (Register now to hide all advertisements) Glad you figured it out!!! Personally I like to put a mechanical on to test out the electric gauges anyway. .

07-26-2019, 10:12 AM	#7
Ol' Ron Senior Member Join Date: May 2010 Location: Chester Vt Posts: 8,860	Re: Oil pressure With no oil pressure, the engine will seize up in just a few minutes. How do I know??