Water in oil

The air pressure must have blew the head gasket,that is why the water is mixing,you only needed about 20 pounds to change the seat valves.

Yea. I new I put to Much air. Well I guess I got more to do. Thanks

A compression test will give you more info on whether you have a blown head gasket. The water pump/timing cover gasket fix also sounds a little dubious, that seal is a good spot for water to get into the oil pan as well. I'd say you have a little more investigating to do.

Ok. I'm gonna pull timing cover back off and look. I test ran it about a mile when oil light came on. I went back. Cut it off then checked oil. It was all milky. With about 2 quarts over filled with water.

And before I started all this. I hadn't been losing any coolent.

I seriously doubt that air pressure caused the head gasket to go out, it was probably already ready to fail. Cylinder pressures during the power stroke far exceed cranking compression and are probably are over 1,000 psi. Also the 1.8 engine has a timing belt not a chain.

Actually mind has a Timing chain.

Wow, I went to look at parts to see if I could determine why coolant is mixing with the oil and could not fine one with a timing chain and now I looked again and there it is. I stand corrected.

Looking at the diagrams the water pump bolts on to the timing cover. I wonder if it is leaking into the timing cover due to a bad gasket, crack or something else. I have used full compressor air pressure in the past to replace valve seals (125 psi) and never had an issue.

Thanks Bob. I'm hoping its that. I had drained all the water out and oil. I put new oil in it . I spun motor over in hopes to coat bearings and all with good oil and not water in hopes it want start to rust. ( of corse I didn't run engine with out water. ) I just want have time to mess with it until weekend. I figured that's worth any risk over letting rust try to set in. But honestly I've been wondering. Even if water pump is leaking in the timing cover. It's got a crank seal and oil pump. Which is crank driving behind timing crank bearing. But how would it get into oil from their. I would think it would just leak on ground from cover. But I don't know. I'm gonna pull it and see. And ck. Compression while I'm their. Might just reseal and see. It would be nice if that's it. Thanks for all the advice.

If your compression test reveals two adjacent cylinders low on psi., then the head gasket is indeed suspect. You will also notice white smoke (steam) out the exhaust even when engine is warm. If it is indeed the head gasket, be sure to use a straight edge/feeler guage combo to check block/head tolerances, otherwise new gasket may fail as well. Hope this helps.

I checked compression. 1 at 13, 1 at 145 , 2 at 150. So compression was good enough. I took off timing cover again. And reseald around water pump housing. Put it back together. Let it set up and cure a day. Then changed oil. So far ITS GOOD. BO WATER IN OIL. Water pump leaking in timing cover must have been the problem. Gonna run it a while keeping an eye on it to make sure. But I drove it a good 15 mile trip. No problems. Thanks for all the help.

My corolla 2000 model is mixing and water comes out in nomber 3 and4 valves and its from engineering water pump is not leaking i changed top gasket