79 chevy c10

[dead civic]

I want to hook up my Oil pressure guage, it has a hard line coming from the gauge side, where does it hook up to at the engine? any input is appreciated thanks.

edit: sorry for the title fellas.

[GM-power]

The oil pressure sending unit screws into an elbow and then in to the block. It located in the rear of the engine by the distributor.
Posted via Mobile Device

[motornut]

right next to the white dist clip
elbows i used with stock electric sender

idiot sender in place,gauge loose

[mrhurt73]

Originally Posted by dead civic

I want to hook up my Oil pressure guage, it has a hard line coming from the gauge side, where does it hook up to at the engine? any input is appreciated thanks.

edit: sorry for the title fellas.

hard line on 79? thought hard line would have been older, but drivers side on back of block right beside distributor, right where the intake meets the top of the block, going to be real hard to see without climbing up in the engine bay.

[GM-power]

Yep, it a pita to get to. Make sure you got a short 9/16 open end wrench.
Posted via Mobile Device

[dead civic]

Seems like a hassle, but I've replaced my manifold and didn't see any elbow or line on my clock. Cvould it be that it was plugged? Another dumb question, if that's the pressure sending unit then what is the OPS with a tooth for a wire on the driver side of the under the manifold doing there?
Posted via Mobile Device

[GM-power]

That's the temp sending unit if im thinking right.
Posted via Mobile Device

[sqzbox]

Look for another hole on the front of the block between the water pump and the intake.

[motornut]

Originally Posted by GM-power

That's the temp sending unit if im thinking right.
Posted via Mobile Device

Yes this is temp

[GM-power]

You can put a opsu by the oil filter. There a inlet there for one. Only problem is it doesn't monitor pressure as good as up top.
Thanks motornut. Sometimes I can't think right lol.
Posted via Mobile Device

[splehigh]

The oil pressure sending unit should look like this.

[dead civic]

Originally Posted by splehigh

The oil pressure sending unit should look like this.

I deff. don't have that up top. I't looks alot like the one on the side under my driver side header... matter of fact I just replaced it because it was leaking oil :/

[dead civic]

BTW thank you guys for all the pics. I really need to learn a lot about these trucks.

[motornut]

Originally Posted by dead civic

I deff. don't have that up top. I't looks alot like the one on the side under my driver side header... matter of fact I just replaced it because it was leaking oil :/

down the side?,above the oil fliter?some are interconnected with elec choke

[mrhurt73]

i am going to try and remember to get a picture of the factory hard line for oil pressure, all the pictures so far show electric sending units.

some of the models actually had a hard copper line from the block thru the firewall to the back of the guage. so yes you are reading it right. you had hot pressurized oil in the cab right behind the guage. now you know why this option didnt go far.

[mrhurt73]

ok so i just happened to have two hard oil lines, one is just engine half, other is complete with half that goes through firewall.
it is just a brass fitting with 1/8NPT thread to screw into the block right beside the distributor.
where the lines meet it is compression fittings to allow the line to be broke apart to pull the engine.
last photo shows the back of the gauge cluster with the compression fitting installed.