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Oil Pressure Gauge

Austin

Austin

FTF's #1 Knob Polisher
10,350
297
Cumming, GA
Where does one hook up the line for an oil pressure gauge?
 
73F100Shortbed

73F100Shortbed

That's how we roll!
5,937
320
NJ
Where the oil sending unit goes. On my 302 it is on the left side of the block near the oil filter.
 
73F100Shortbed

73F100Shortbed

That's how we roll!
5,937
320
NJ
From what I just read on the 351m the sending unit is on the block in the back by the firewall.
 
Austin

Austin

FTF's #1 Knob Polisher
10,350
297
Cumming, GA
That's what I thought, but the fitting I had didn't... fit!
 
73F100Shortbed

73F100Shortbed

That's how we roll!
5,937
320
NJ
Just have to get a fitting that matches the threads for sending unit. I ran into same problem with a Dodge I had. Took awhile to find one. autometer couldn't even help me out and it was there gauge LOL but I figured it out and relayed the info back to them so they could help future customers.
 

gsxr1238

Be fast.....or be last.
169
19
Northwestern NM.
The opening in the block is 1/4" pipe thread.Then you have to decide whether or not you still want to run the sending unit for your dash gauge.You will have to plumb a tee fitting in if you want that option.
 
Last edited:
Mil1ion

Mil1ion

Still Da Man
6,277
221
Just Above a Huge Gas Source
I would run a Tee for both gauges

I would also leave the mechanical gauge in the engine compartment for referral purposes.


One doesn't need oil spewing into the cab
 
Austin

Austin

FTF's #1 Knob Polisher
10,350
297
Cumming, GA
Mil1ion said:
I would run a Tee for both gauges

I would also leave the mechanical gauge in the engine compartment for referral purposes.


One doesn't need oil spewing into the cab
Click to expand...

I'm still not seeing where one would hook up said gauge for one's oil to be in one's cab. :D
 
73F100Shortbed

73F100Shortbed

That's how we roll!
5,937
320
NJ
If it is a mechanical gauge oil runs through the tube right to the gauge from the engine. In my old Dodge I had mechanical and you could see the oil run into the tube in the cab at startup. In my 73 I chose to go electrical.
 
smokey

smokey

Hitech hillbilly
Staff member
13,257
706
Garrett Co. Maryland
If it is mechanical do what Dennis said and keep it in the engine compartment.
I had a capilary tube rub into and spray out all over the floor,seat and me. Who would think a fine tube that size could spay out so much oil.
 
Austin

Austin

FTF's #1 Knob Polisher
10,350
297
Cumming, GA
smokey said:
If it is mechanical do what Dennis said and keep it in the engine compartment.
I had a capilary tube rub into and spray out all over the floor,seat and me. Who would think a fine tube that size could spay out so much oil.
Click to expand...

Sounds like fun! It is a mechanical, so it will most likely live in the engine compartment somewhere...
 

gsxr1238

Be fast.....or be last.
169
19
Northwestern NM.
Engine compartment is a good place to keep it as long as you are not trying to keep an eye on engine vitals.You can purchase a 4' long -3 stainless line from Earls for $21.00,and never have to worry about the line rupturing,splitting,etc.
 
UNRULEE

UNRULEE

^LARGE carbon footprint^
5,412
424
Coal Country, ND
I have a mechanical gauge in my '79. I preffered the full sweep face of the mechanical gauge. I threw the plastic hose crap that came with the gauge away and ran a braided hose instead. No problems in the last 9 years.
 
Fellro

Fellro

Moderator
Staff member
7,953
361
Iowa County, Iowa
You can also get a copper line to do away with the plastic, but the stainless sounds like a better option to me. I have also had an oil line come loose in an old Nova I had, soaked my leg with hot oil , as well as the carpet...
 
LEB Ben

LEB Ben

Arrogant A-hole At-Large
34,919
1,124
outside your house
These guys are on point...and that's why I usually try to run electrical gauges, so I can keep an eye on the vitals, but not have to worry potential spewage. FWIW, the SU is almost dead center back middle of the top of the block behind the intake. IT's an SOB to get to if everything is still hooked up. But if you have a thin stubby you can get underneath it or I prefer to use a vice grip clamped to the body of the Su and go at it.
 
Mil1ion

Mil1ion

Still Da Man
6,277
221
Just Above a Huge Gas Source
VacuumTree-1.jpg
 
LEB Ben

LEB Ben

Arrogant A-hole At-Large
34,919
1,124
outside your house
m78 said:
I put a baker scaffold over the front of my truck and was able to lay on it to access the engine compartment and put a Tee in the sending unit port
Click to expand...


I didn't find that actually getting a hand on it was a problem as much as getting more than 1/16 of a turn from the wrench. Which is why I advocate the vice grips, once you get it to break loose, re-grip from the top.
 

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