All of the factory installed sending units I've seen were screwed in at the top of the block, rear rail, behind the intake manifold. If that is the style in question, there is probably a special socket made for the purpose, but a pair of channel lock pliers or vise-grips can be used to unscrew the sender and install the new one. Since the threads provide the ground connection, Teflon tape or other sealant could prevent getting a good ground.
connected to thermostat housing
it is located on the bottom end of the head
A tan/white wire goes from the sending unit to the fuel gauge typically on a (example) 1985 Chevrolet Silverado 305 tbi.
it screws into the side of one of the heads.
most likely a sending unit problem
That would be the oil sending unit.
On the drivers side of the block, right above the oil filter.
Just read somewhere else that it's at the back of the motor under the distributor.
It's usually screwed into the intake manifold towards the front, near the thermostat housing.
To tell you what the temperature sending unit part number is I would need more information. It all depends on what type of vehicle it is in, and where that models actualy hooks up at.
Go for it
Yes, you sure can.
The oil pressure sending unit is located under the hood, way in back of the engine, under the distributor on the drivers side. Removal requires removal of the distributor.
On drivers side screwed into the back of block behind intake with 1wire plugged on to it.
Replace the pump, your bearings are shot and it needs to be replaced before the pump flies apart sending your fan through the radiator.
It should be in the thermostat housing or right next to it a single wire normally right side or center on front of intake manifold.
There's a pipe plug just above the oil filter. The readings might fluctuate a little more, but it would work fine.
I believe it is located right above the oil filter. It screws into the motor block and will have 3 wires attached to it with a plug.
Yes they interchange
it is located behind the distributor on top of the block there is the oil sending unit and a oil sending switch with a wire that goes to your choke if it is electric trace it back and you will find it...
If the Buick 305 is really a Chevy 305, then the motor mounts will interchange with a Chevy 350.
OIL PRESSURE SENDING UNIT
top rear of the motor, next to the distributor
Did you remove oil sending unit and install a oil pressure gauge in it's place and read it so you can rule out the gauge in the dash and sending unit ? If not, then do it. Then if you don't have oil pressure. Remove the oil pan and check the oil pump pick-up screen to see if it is stoped up, if it is replace oil pump and screen. If it's not then replace oil pump and screen anyway.