Oil Pressure Sending Unit 72
Thread Starter
Le Mans Master
Joined: Oct 2001
Posts: 5,943
Likes: 3
From: Wildwood IL
Oil Pressure Sending Unit 72
Hey Guys:
Where is the sending unit mounted? I don't currently have one for my 72, and wondered where and how it's connected to the gage. Only thing I know is that there is an oil line sticking out from behind the firewall, and runs into the engine comprtmnt. Mechanical unit...right???? :confused: :confused:
Eddie
Where is the sending unit mounted? I don't currently have one for my 72, and wondered where and how it's connected to the gage. Only thing I know is that there is an oil line sticking out from behind the firewall, and runs into the engine comprtmnt. Mechanical unit...right???? :confused: :confused:
Eddie
Pro
Joined: Aug 2001
Posts: 667
Likes: 3
From: College Station TX
Re: Oil Pressure Sending Unit 72 (Silvr77)
On my BB, there is no "Sending Unit". The oil tube coming out of the firewall goes to a brass tube, wich connects to a 90 degree brass fitting which screws into the block above the oil filter. The other end of the tube connects directly to the gauge.
Not sure on a small block, but can't imagine a big difference.
Not sure on a small block, but can't imagine a big difference.
Safety Car
Joined: Jun 2001
Posts: 4,004
Likes: 2
From: Severna Park Md
Re: Oil Pressure Sending Unit 72 (Silvr77)
Yes on the 72 it is a mechanical gauge. Therefore there is no sending unit. Just a hollow line that runs from the gauge to the block. The intended position on the block is just behind the intake manifold next to the distributor.
Thread Starter
Le Mans Master
Joined: Oct 2001
Posts: 5,943
Likes: 3
From: Wildwood IL
Re: Oil Pressure Sending Unit 72 (Silvr77)
So that's what that plugged hole is for!!! I noticed a pipe plug behind the distributor....Damn Bubba!!
Thanks Sray & Jvette
Hey Mike: Your car is my 72's big brother. Although it was originally a BB, it now lives it's life as a SB Mille Miligna 4-speed Coupe. :cheers: :cheers:
Eddie
Thanks Sray & Jvette
Hey Mike: Your car is my 72's big brother. Although it was originally a BB, it now lives it's life as a SB Mille Miligna 4-speed Coupe. :cheers: :cheers:
Eddie
Le Mans Master
Joined: Sep 2001
Posts: 7,739
Likes: 630
From: Unreconstructed, South Carolina
Re: Oil Pressure Sending Unit 72 (Richard Cooper)
Until 75, all C3 came with mechanical op gage ... tubing runs from fitting at top of block behind intake ... to gage ... also until 75 all C3 came with mechanical cable-driven tach. Beginning w/1975 model year, all C3 came w/ electrical op gage & electronic tach coupled w/HEI distributor.
