Sorry for the off topic post, but does anyone have any idea on how much of a ****** it would be to change the head gasket on a Toyota 1G motor? The car is a JDM Toyota Mark II. The first 2 cylinders are full of oil, the third full of water. Suggestions would be helpful. Also, anyone who has paid to have a head gasket changed on a similar engine or any DOHC straight 6 motor.
Thanks.
Toyota 1G
its pretty much like changing a head gasket. but seriously, its a matter of off with the timing belt, valve cover, head bolts, head. not trying to say its easy, but i wouldnt inagine it being any different from any other head job on a i6. its gonna be time consuming, a PITA, and your gonna have to have the head resurfaced at a machine shop. gonna take hours. i would set aside 2 days just in case something doesnt go as planned. [we all know how much that happens]
Icepik: A shop charges some serious coin to change a head gasket. I was quoted $500 plus materials, for a 22RTE four cylinder engine. I did it myself and you can too. First thing you need is an automotive manual of some sort, I found one by Haynes for my engine. You'll need all the torque specs, etc. from that. You'll ruin the exhaust manifold gasket, and the intake manifold gasket, plus a couple of others, be prepared for that. The head bolts were corroded down to about 1/4 their original size, so I had to buy after market head bolts too. Buy a bottom tap for cleaning and chasing the crusty bolt holes too. Take the head to a machine shop and have them check it out, do it right the first time, or the new gasket will more than likely fail right away. The valve stems probably need new seals as well. The machine shop will install these when they reassemble the head after they are done. Take your time, clean all surfaces really well, follow the directions from the manual, and you should have a good running engine again. That's about all the words of wisdom I can think of right now, good luck with your project.
Randy
Randy