Sprung an oil leak this morning (h22)

[wrichards2005]

Merry christmas everyone. I was driving home from my girls house this morning and my oil pressure light came on. I pulled over to a gas station and when I rolled in I saw a small trail of oil to where I was parked. I added 4 qts and drove home (2 blocks). Its still leaking though, there's a little puddle under the car. I didn't hit anything that I know of. So I jacked it up and sprayed brake cleaner under the car cause oil was everywhere. Then I started it up and ran it for 10 seconds.. I jumped under the car and oil was either coming from the oil filter or somewhere above it.

Now I'm wondering... cause I took off the filter and checked for leaks and cracks. I didn't see any. The oil pressure switch is under the oil filter I think,,, right? So what else could it be that's directly above the oil filter? Anything? I can't get an oil filter today so I wanted to see what else it could be so I can be ready to tackle it when an oil filter is available.

Btw those of u thinking I should use my old oil filter I sprayed thru it with a hose to check for leaks.. but plz someone help!

[Straight Success]

Either oil sending unit or maybe oil filter housing o-ring. Check both, that may help.

[naphta91]

^ my thoughts exactly

[MikeW]

Wow....here's a name i havent heard or seen in a long time...

Im with straight, sounds like a sending unit.

[xkjnboix]

oil filter 0-ring i guarantee 10$ part at honda. i had the same thing happen luckly i constantly check my oil and i was only low 1 qt.
it wouldnt be the sender unit cause ur actually LOOSing oil. the sender might just throw you a false low oil reading. im sure ur only loosing when u turn ur car on and if u look under then u can see the oil flowing.

[alkoholikwun]

my oil sending unit leaked onto my headers. and its located above the filter.

[CB7Man]

H22 has an Oil cooler
The oil cooler is bolted to the block, which the oil filter screws onto.
Sandwiched between the block and oil cooler is an O-Ring.
This is a very common failed part. (the one on my H22 is failing slowly)
It requires a 27mm socket (I think) to get the oil filter screw off.
Then the oil cooler falls off and you can replace the O-ring, now is also a great time to replace the oil cooler...coolant lines aswell.

When you look under the car it just looks like the oil filter gasket is failed, but its really this O-ring. (I talk to dealerships)

[low-keyseg92]

I know this is an old thread but I had to comment. I just did this repair to the neighbors Prelude. It was a PITA, but it is done. I went to Oreillys and autozone to get the gasket for the oil cooler. They both said they had nothing in the computers for an oilcooler on a Prelude??? Either way, I got an O ring that matched in size and its good to go. I also did the VC gasket and plug gromets while I was at it. The gaskets were broken and brittle. Worst I have ever seen and its a 98. Ok thats all I got...lol