Lude2001

Just discovered an oil leak from the oil filter housing at base to engine is this just a gasket ? and how hard to fix ? non mechanic but can follow directions really well.
2001 prelude v-tec engine manual stick. checked oil pressure switch and replaced only to find leak coming from above at base of oil filter housing replaced oil filter also just to make sure and wala housing unit is the trouble maker

minilogoguy18

Need to go to the dealer and buy an oil cooler housing o-ring, like $3 or something. With the filter off you take a deep 23mm to undo the bolt that the filter screws onto that goes through the center of the oil cooler, pull it away from the block and replace the rubber o-ring. No need to disconnect the coolant lines going to it, just do this next time you change the oil.

5SpdH22

I'm thinking you're talking about the oil cooler. There is an o-ring for it (Part # 91316-PE7-730).

You pull off the oil filter, use a 30mm socket to take off the oil cooler, replace o-ring, and reinstall everything the opposite way.

Ninja edit: Posted at the same time, I have an H22A and had a 30mm (Not 23) bolt holding it on.. just did this last week.

Lude2001

Thank you Both for the info I"ll buy both the 23 and 30 mm deep sockets just to be on the safe side. "Oil cooler O-Ring".I'll hit the Dealer first thing in the morning.

BDM

Just did this a few days ago. O ring was around $4 from the dealer. Just had to buy a 30mm socket from autozone. Easy fix and no more leak. =D

minilogoguy18

Couldn't quite remember the socket size, been a while since I did mine, I think I got confused with size needed for the knock sensor.

Lude2001

Thanks again everyone I'm off to the dealership in a bit I'll post the end results after i'm done!!!!

nus_dogg

Yeah, I had to replace mine too after the swap cause mine was dripping like nothing.

Lude2001

Wifes Car 2001 Prelude, Oil Cooler O-Ring $3.69 stops major Oil Leak, Ratchet and 30mm Deep socket $32.00 Priceless. Thanks once again to all that responded if ever In Georgia Look me up at http://www.ReflectionsCatering.food.officelive.com meals on me.!!!!!!

tuneman

I have a 92 SI, 2.3, same thing. Same problem do you think??? O-ring??? I swapped out the oil pressure switch and now it appears as though this wasn't my problem. It looks like it is coming from the housing that the filter screws into. Is the O-ring right against the block?

Tune

BlackCatt

Yes, its most likely the oil cooler o-ring thats causing the leak, just
buy some new seals and fit them and your oil leak will be gone.

Lude2001

thanks to everyone who posted the oring was replaced with little fanfare an 89 cents part can reak so much havoc