Supercharger question

[newthings]

I found that if you filled to the bottom edge of the front plug, you would soon find oil blown out past the seal collecting in various depressions on the front of the S/C. When I had the install done by Alpine in their shop, they filled by volume and that resulted in the level being 1/4" below the front plug. When I did service later, I determined this by lowering a small tube on a syringe 1/4" into the gear case and I sucked back oil to that level.
Roy

[ScottinMA]

Where is this filler hole??? And what grade oil did you fill it with? That's my mystery.

[hughesdt]

Mine is right in front left of the snout, looking at it on the motor. A 6mm allen setscrew looking thingy, IIRC. I did the same thing, used a syringe to suck the old oil out. I went to a Chevy dealer and got 8oz of super charger oil, cost about as much as a quart of motor oil. It has a narrow tip to fill with, and as mentioned earlier fill it up till it runs out.

Hope that helps, Dan