Can I delete my stock oil pressure sending unit?

[Saturdee]

I'm going to be installing my mechanical oil pressure gauge soon and was wondering if I can just remove the stock sending unit since that's where they say to tap into your OFH at.

 

[EvilTsi95]

If your removing your old sending unit, you shouldnt have to "tap" anything. Just screw the oil pressure fitting from the line into where you removed the old unit

 

[Saturdee]

Sorry, it was a bad reference I used tap as. I meant where I'm putting my fitting for my line to the gauge. I saw some guys keep their stock unit and just "T" it off of their fittings. I'll have no ill effects if I just completely remove it?

 

[EvilTsi95]

The only reason you would want the stock sending unit is for the dummy light. You could T off and use both, but I think I got a more accurate reading without a T. But thats just me

 

[1qkfwd]

Just remember that the housing is tapped bpt not npt. Most tees and aftermarket sending units are npt. You can buy bpt to npt adapters.

 

[EvilTsi95]

Just remember that the housing is tapped bpt not npt. Most tees and aftermarket sending units are npt. You can buy bpt to npt adapters.

Thanks for the reminder, I forgot to mention this

 

[1qkfwd]

Thanks for the reminder, I forgot to mention this

I found out the hard way. The npt always leaked and never went in very far. Caught wind they where bpt and not a single drop. I now buy every bpt/npt adapter summit sells when I go there.

 

[Saturdee]

Just remember that the housing is tapped bpt not npt. Most tees and aftermarket sending units are npt. You can buy bpt to npt adapters.

Yeah I read about that also before I bought my SS line and adapters. I have a 1/8 male bpt to female 1/8 npt. That then goes to my male 1/8npt to -4 AN male. Then my line, then to my -4 AN male to 1/8npt female adapter on my gauge.

So what I'm getting is that I can run it straight through as mentioned above, without teeing off for the sending unit? What exactly will change when I delete it?

 

[TSiAWD666]

There are two oil pressure sending units, one for the dummy light and one for the gauge. I believe the gauge is the larger of the two. Eliminating either just eliminates the function of the gauge or light, and so you can remove both freely.

Personally I wouldn't ever run a mechanical oil pressure gauge because if something happened to the gauge or its line I wouldn't want hot engine oil pouring into the cabin. There are those that scoff at that concern but in case you hadn't considered it I wanted to mention it.

 

[Saturdee]

There are two oil pressure sending units, one for the dummy light and one for the gauge. I believe the gauge is the larger of the two. Eliminating either just eliminates the function of the gauge or light, and so you can remove both freely.

Personally I wouldn't ever run a mechanical oil pressure gauge because if something happened to the gauge or its line I wouldn't want hot engine oil pouring into the cabin. There are those that scoff at that concern but in case you hadn't considered it I wanted to mention it.

I figured this would pop up eventually. I know many people are against mechanical gauges because of hot pressurized oil running into the cab, which is why I ditched the nylon and copper line option and went with the stainless steel braided line. After reading through the forums I'm pretty confident in this setup.

But thanks for the reply, I won't worry about teeing off for the sending unit then.

 

[1qkfwd]

I figured this would pop up eventually. I know many people are against mechanical gauges because of hot pressurized oil running into the cab, which is why I ditched the nylon and copper line option and went with the stainless steel braided line. After reading through the forums I'm pretty confident in this setup.

But thanks for the reply, I won't worry about teeing off for the sending unit then.

I run a mechanical with the braided high pressure line. Track only car so lots of vibrations and what not. Haven't had an issue to date and don't think I ever will.

 

[boost97gst]

There are two oil pressure sending units, one for the dummy light and one for the gauge. I believe the gauge is the larger of the two. Eliminating either just eliminates the function of the gauge or light, and so you can remove both freely.

Personally I wouldn't ever run a mechanical oil pressure gauge because if something happened to the gauge or its line I wouldn't want hot engine oil pouring into the cabin. There are those that scoff at that concern but in case you hadn't considered it I wanted to mention it.

I was hoping someone would point out there are 2 pressure units. One for the gauge and one for the dummy light. The dummy light is important to keep hooked up in my opinion. As far as mechanical vs electonic? I have to say my next gauge will be mechanical. Albeit, im using a glowshit elec oil press gauge . Its not very accurate and when warm at idle it reads like 1psi. If that were the case the dummy light would be on. Acted like this from day one. Itd have to be a NICE elec gauge to make me use one again. my .02

 

[curt-s]

By the time the dummy light goes on, you're probably somewhat screwed anyway

 

[Saturdee]

By the time the dummy light goes on, you're probably somewhat screwed anyway

Haha even though it's not the dummy light sending unit I'm removing, it still is useless for me because the metal clip that the harness connects to is snapped off...

I'm not too concerned though, because since I just rebuilt my motor my eyes will be glued to the gauge . It'll be replaced soon enough.

 

[SlowChild3]

I put my stock sending unit on the head so I didn't have a dead gauge in dash. In the oil feed location since I'm feeding from the OFH.