'92 4runner 3.0. this vehicle overheated for about 2+ hours, (don;t ask wasn;t my deal) but ever since then its just leaks oil alot. ive taken it to the power washer to clean it up and track the leaks. but i was wonder what gaskets to replace on 200,000+ milage engine to keep it from leaking oil. (as much)
obvious to me would be the pan gasket, valve covers, but thats it

 

well it depends on where its leaking from?

would be pointless to replace the oil pan gasket (which is RTV by the way, not a cork gasket.) if the valve cover gaskets are leaking.


if it aint broke don't fix it

 

i appreciate the response, i have the same thpught if it aint broke dont mess fix it . but its goin through bout a quart a week the majority ends up in my driveway. what other gaskets retain oil is my main question

 

Some other oil holding gaskets to check are: Front Crank Shaft oil seal, Rear main seal etc.

Might want to check the PVC valve to make sure it's not plugged. Could help with how much pressure the engine builds and subsequently blows out past the seals.

Overheating an engine is not good, especially for TWO plus hours. You might need more than just new gaskets...

 

Well I've been driving on it for about a year. All seems ok except the leaks. I did a compression test shortly after happened and it checked out at 175 give or take all the way around. If my memory serves me. A lot of the oil seems to be coming down the passenger side engine area, you can see it through the wheel well. And when it idles it will begin smoking q bit, which leads me to think valve cover gaskets.