Originally Posted by camaroman7d
Are you 100% sure it's coming from the blower? Do you see any evidence on the blower? (oil trail, moisture, etc..). Did you use sealer on your snout bolts? If not, that could be the source of your leak. You might want to double check to be sure the oil is not coming from your breathers (I know you said it has the un-mistakeable gear oil smell but, just covering all bases). There really aren't many places for oil to get out of the blower. Is the back of your blower belt getting wet/moist? How about the back of the blower pulley?
Royce, thanks for your reply..the only "evidence" I'm seeing is condensation of gear oil mist (droplets) starting about midway from the front pulley to the main housing and then migrating rearward to the entire engine and engine compartment...yes I used sealer and no oil mist is seen near the pulley end of the blower....Nothing at the back of the blower because that's out of the prop-wash.
This mist is no doubt swirling around in the cooling fan airstream (prop-wash)...and that's what makes it so hard to determine the source of the leak.
I even thought it might be boost pressure from inside the rotor housing leaking past the rotor seals into the gear drive housing but there is only "slight" oiling inside the snout itself.
I'm about to replace the front gasket and add some ultra-violet dye to the gear oil to try to "see" the source, but, that's a very messy diagnosis on a show car..hard to clean that dye off!