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x-rad · Post by **x-rad** » Thu Mar 15, 2007 4:27 pm

Found a small amount of antifreeze in the oil and antifreeze condensing under the driver side valve cover(probably under both). Engine originally had crapped out rings in number 5 and 6. So, I hope the problem is with the corresponding head...

Only blows white smoke out exhaust when ~170 degrees, maybe a crack in the head opens up?????

no evidence for sunken liner..

you can't see it, but #5 looks like it's running a little lean..

Got a spare head, will change out the valve springs , clean it up, and give it a shot...

Mats · Post by **Mats** » Thu Mar 15, 2007 11:36 pm

A crack would most likely seal up when it's hot, at least that's my experience.

x-rad · Post by **x-rad** » Fri Mar 16, 2007 4:15 am

I konw what you are saying Mats, just can't think of anything else....

Mats · Post by **Mats** » Fri Mar 16, 2007 4:30 am

With increased heat in the system the pressure rises. I'd change the head gasket and keep my fingers crossed.

x-rad · Post by **x-rad** » Fri Mar 16, 2007 10:52 am

yeah, I have a 50% chance of getting the right head gasket......

x-rad · Post by **x-rad** » Fri Mar 16, 2007 6:03 pm

Mats: looks like you were right......I did not see it at first but look at the #5 cylinder in the pic below. You can see the leak and the head gasket distortion....(you can see corrosion in the #5 bowl as well)

Time to get my head milled...

I guess the head is a little warped so I put another on to see what happens (with a new gasket)

MR2 Zig · Post by **MR2 Zig** » Fri Mar 16, 2007 6:05 pm

Hey x-rad,
What are you using to take your pics? I'm looking to get a digital camera and your pics look pretty good.

Thanks,
Scott

x-rad · Post by **x-rad** » Fri Mar 16, 2007 6:12 pm

Ziggy: PowerShot A510 Cannon 3.2 megapix...it's two years old, got it at target

I take high res pics and shrink them to 1/4 the resolution so I can post them

Rather be taking pics of the car on the track, though....

x-rad · Post by **x-rad** » Sat Mar 17, 2007 3:16 pm

New head on, started right up, no more pressure in the coolant bottle (I should have recognized it), no more antifreeze out exhaust!!

Torqued to 76ft lbs per manual. For some reason, I think I only did it to 65ft lbs last time.....?

Let's see how long it lasts.....

MR2 Zig · Post by **MR2 Zig** » Sat Mar 17, 2007 9:21 pm

Thanks x-rad.

I hope you dont have reason to take pics of your heads again any time soon

Scott

x-rad · Post by **x-rad** » Sun Mar 18, 2007 2:29 am

Thanks, Zig

antifreeze in exhaust