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Author Topic:   Milky Oil on a New Motor with Zero Races
posted June 16, 2004 07:46 AM
Okay here we go brand new race engine.
400 small .020 over
12.5 compression
brodix heads large valve fully ported and pollished by clements
willys carb for alky
blp belt driven fuel pump
I have around 1% loss in each cylinder acording to the leak down test
I am at 5 psi idle, and 10 psi full throttle with fuel press.
Here seems to be the proble my oil turns milky after warming the motor up to 150 degrees (haven't had the motor any warmer yet) Something is getting into my oil, and turning it milky, and we know for sure it's not water out of the radiator. But we think the alcohol is getting into the oil. Am I running to fat on the jetting, or should should this occour, and the alky burns out of the crank when it warms up? I noticed after 150 on temp if youthrottled the car a little either moisture or alky comes out of the breather on the valve cover. Any one got any ideas. I am totally new to Alky, and have been told should run Racing gas instead.

posted June 16, 2004 07:51 AM
try some smaller jets

posted June 16, 2004 10:14 AM
the first start-up all the assembly lube will milk the oil some, I have that every year. Also, w/ methanol, you do want to bring it up to temp, the motor temp helps clear the fuel out of the oil. also your low-speed settings may be on the fat side as well. Regardless its not a huge issue, its not gonna grenade the engine.

posted June 16, 2004 12:12 PM

I freaked out about that too on my first alky motor. All that alky will turn to vapor and evaporate back out at about 180 degrees. It's common, but like posted above, I avoid starting it unless it's going to be brought up to temp, and avoid extended idling.

posted June 16, 2004 12:21 PM
Another thing I just thought of is, if that's a brand new engine, the rings haven't seated yet and extra alky that normally wouldn't pass by is.

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