Thanks lexis lexus for the reply. The oil is actually migrating to the bottom bolts of the exhaust manifold and very slowly dripping down onto the exhaust pipe as it bends under the engine. I can see the edges of the head gasket and they are very wet with oil. I will try to get a picture of it today. I already replaced the timing belt, pulleys, cam seals and water pump about 20k miles ago. Considering myself a part time mechanic (having a repair facility in the family but not in the same state I live)I felt very comfortable with the timing belt stuff but the cams and all the gears and alignment scare the heck out of me. I do have an Alldata account and have the paperback books but all the same. Thanks for all your answers. Not all what I wanted to hear but it helps in making a decision on what to do.
Hello All, I have a 1999 ES300 with approx 140k. The car is immaculate inside and out and I have babied the engine since I bought it with 99K on it. Have always run Mobil 1 and Bosch filters. It is my wife's daily driver but she only puts about 3k miles a year on it. During a routine oil change I noticed the front (I believe the RH) exhaust manifold wet with oil. At first I thought it was the valve cover gasket but after washing the engine down and taking her for a test ride it appears the oil is coming out of the head gasket right in the middle of the head. There has been no coolant loss or any type of smoke coming from the exhaust. In fact everything seems to be working perfect other that the leak. I have never seen an oil leak out of a head gasket. I have been researching a couple of different manuals for replacing the head gasket and it is obviously a lot of work. I have a few questions I hope you can help answer. 1. Has anyone else ever come accross this? If so how did you resolve the problem. 2. Do you think changing to a high mileage non-synth oil and putting in an additive would help/cure the probem without a tear down? 3. Can you access the head bolts without actually removing the cams and the gears from the top of the heads. 4.if so, do you thing re-torquing the bolts might help? 5. if I tackle the gasket replacement process would you do both heads? 6. would you pull the whole engine and replace rear seal along with gaining good access to rear head. Whew...I know that was a lot but I wanted to throw it out for your opinions. Thanks in advance for your time and effort in answering. Have a great Holiday. Kevin