I have an 86 22r that I just bought a long block and installed it. After getting everything hooked up, I cranked it and it actually started and ran for a couple of seconds. However that is when I realized that oil was shooting out of the block onto the firewall. Here is my question. On the right side of my block, directly under the oil filter is a threaded hole in the block. This is where the oil is shooting out from. At first I thought that I may have installed the pressure sending unit in the wrong spot, however after removing it I realized that the hole under the filter is a finer thread than the sending unit. I believe that the sending unit installs on the block directly BEHIND the filter, is that right? It fits on there and I believe that is the place I removed it from. I believe I need a block plug for the hole UNDER the filter, however like I said before it is a finer thread than the sending unit which I believe is 1.25. I was wondering if anyone knew what size plug I need to find to put in there. Also, if I cant find a plug that size, would it be OK if I just found a bolt that was that size and put it in with RTV? Sorry for the long post, but thanks in advance.

Oil pressure sender goes below the oil filter.

You replaced the temp sensor. The oil sensor goes directly below the oil filter as 4crawler stated. If you look at the motor mount next to it you will see a plug like the one your talking about. I doubt you need the plug you just need an oil sending unit. make sure you get the correct one or you gauge will fry.

What you're missing is an oil galley plug. If you have only an idiot light, and no oil gauge, a plug is in its place, as these are NOT the same sensors.

If you can't find a plug, just get another oil sending unit and screw it in there. Plug might be dealer only. if you still have your old block, take it off and use it.

NO RTV, period.

Good idea for that hole: I put an aftermarket oil pressure gauge sender in there, one of the cheapie ones with the hose that actually runs a small ammount of oil into the cab to get a pressure reading....seems to work fine for me. and it's always good to be able to check your oil pressure at a glance. Mine just threaded right in.

Actually, the purpose of my suggestion is based on if he did NOT have a gauge, was to use another sensor if he didn't have a plug. <img src="/forums/images/graemlins/cheers.gif" alt="" /> <img src="/forums/images/graemlins/smile.gif" alt="" />

but why fix it normal when you can fix it better? <img src="/forums/images/graemlins/kewl.gif" alt="" /> <img src="/forums/images/graemlins/cheers.gif" alt="" />

Hey guys, thanks for the answers. I figured out what I did wrong. Apparently when I had the block on the stand putting everything together, I managed to put the pressure sending unit in the wrong hole. I guess due to it being nice soft aluminum, it screwed right in with my fingers. I don't know what the extra hole is for but my application doesn't use them as far as I can tell. Anyway, after spraying oil all over the firewall, I actually looked at the digital pictures that I took of the old block. Lo and behold I realized that my sensor was in the wrong spot. Anyway, since I damaged the threads on the sensor when I screwed it in the wrong hole (different pitch), I bought another one. I will install it later when I get a chance.

Lesson 1 I learned: Always look in a hole before you put something in it.

Lesson 2 I learned: review digital camera pictures BEFORE you try and put the block together.

I like the idea of the aftermarket guage though. I have put them on other engines before, however I might get around to putting one on the toyota sometime.

Anyway thanks for the help.