Scotty, I have a 95 celica with 1.8 7A-FE engine, 250k km. Starts from a half starter spin, got LPG installed, idles well on gas, has not lost its power.
Two questions - does discovering oil and coolant mixture means, that head gasket is blown? I saw some guys on youtube replacing tiny oil cooler seals made from rubber. I bet here is that other contact point between those fluids.
Would You recommend trying this fix, or I'm just too optimistic at this point? Cheers and thank You!
You could try those seals. If water and coolant has been mixing the engine really needs to be flushed. If it were mine I would take the head off, replace those seals and do a new head gasket. Take the head down to the machine shop and check make sure it was level. If you plan on keeping the car that is best way to go. Put a new timing belt on while you are at it. There are instructions on how to setup the timing before you pull the head etc..... if you feel comfortable doing it yourself. Or you could get a engine from the junkyard, rebuild it and then drop it in. Get another 200k + miles out the car. Again very feasible if you can do the work yourself.
Might as well get new guides and a three angle valve job with new stem seals while the heads are off.
Thanks for the feedback, never imagined there would be such helpful and awesome people on the internet! However what I didn't mention is that there is no change in coolant level after 4k miles nor any white smoke or funky smells, oil is not milky at all, only the radiator cap reveals some milky goodness when opened, and there is some oil residue around the valve cover. I'm wondering if someone here had heard such a combination on this type of engine? It just runs too good to be blown (in my dreamland)
You can have oil leaking into water or
Vkce versa bit the lart of tge gasket that maintains compression be fjne .