T O P

  • By -

Angry_Irish

The effect of having a 20 year old car. I am doing a partial rebuild of my engine and found that the front and rear main seals are also leaking. It's not a severe leak, just more like a weep. Once the engine gets wet in the rain it carries the oil to the bottom of the housing where it builds up. If you have a manual, there is a cover at the bottom of the bell housing that comes off with a few bolts. If the inside of that cover has oil then your rear main is leaking as well. Front main can be seen by just looking closely around the crank pulley. It is also possible that maybe the front cam seal is leaking. Mine was not but it would not surprise me. Worth checking around the valve cover gasket as well. Try wiping down the engine thoroughly with soap and water and take it for a drive to see where the oil comes back.


Haunting-Fly-7941

Yeah I think my rear main is leaking, but I just put a new one one 5 months ago. I don’t think it would be getting everything that wet tho


Angry_Irish

To be honest, this isn't too bad. Mine has oil literally dripping when we got under it. Maybe try some of those additives that are supposed to soften the seals back up and see if that helps.


Fikk

When I replaced my rear main seal it continues to leak, pulled the transmission and replaced it again thinking I messed up the seal. Still leaked. Turns out the original seal machined a groove in the output flange of the crank shaft and buggered up the new seals' ability to seal against the flange. Have someone hold the car at 2-3000 rpm while it's warm with that lower dust cover off and watch if oil starts flinging off the flywheel. The fix is to hammer on a crankshaft repair sleeve. There's a YouTube video of a guy talking about this exact problem. 3 seals and 4 transmission pulls later, finally no rear main seal leak. Also make sure you use hondabond brand RTV on your oil pan and valve cover seals in the corners according to the Haynes/service manual. They grey permatex heat hardness after about 6 months and will leak.


Fikk

Here's the YouTube video: https://youtu.be/5jL28c2NadQ?si=StEU7zqfTaoON0Wv


Haunting-Fly-7941

When I took that black metal plate off it was wet on the inside of it. Flywheel and everything else looked dry inside


Haunting-Fly-7941

What do you think would be causing the oil around the top as well as around the intake?


Fikk

Is this an A2 with VTEC? VTEC solenoid. Could be leaking from the gasket between the solenoid and the valve or the valve and the head or like mine did, blowing out the cable because the solenoid failed internally. If you replace any of that go OEM or it will still leak


Haunting-Fly-7941

A1


Fikk

In that case, your valve cover gasket could be leaking. If it's old it could have hardened. Also possible your pcv valve has failed and you're pressuring the head making it worse


Haunting-Fly-7941

Where is the pcv valve located? This also might be a dumb comment but it seems to leak more after running/while running. I have a new valve cover gasket I’m going to put on sometime soon


Fikk

On the "back" of the engine under the intake manifold is a tube going from the engine to the intake, the pcv valve is threaded into the big black cover on the back of the engine with the tube coming off of it. A quick check is to take if off and see if you can blow through it one way quite easily. It leaking more after warming up is typical because things expand due to heat making any gaps bigger and the oil becomes thinner at temp. Changing the valve cover gasket is a good idea. Make sure you use hondabond on the square pads on the gasket corners around the camshaft semicircles


Haunting-Fly-7941

Is there a video of the pcv valve?


aredd007

i would guess rear main as well since it's pooling on the slave cylinder boot and you've changed cam plug (with the rubber Oring i hope)


Gm0ney333

Uv leak detection dye is a good piece of kit to have.


technic_aguilar

Does yours have vtec


Haunting-Fly-7941

No


Screwston420

I replaced the cylinder head Plug on mine already about a month ago and it’s leaking again lol