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Old 11-23-2008, 12:14 PM   #14
unclemat
Scooby Specialist
 
Member#: 114530
Join Date: May 2006
Chapter/Region: NESIC
Location: MA
Vehicle:
2005 LGT 6MT wagon

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Quote:
Originally Posted by Gigabelova View Post
In my opinion, an oil pump in the tranny is over engineering. As the gears spin oil is already lubricating the gears. The 08 STi does not have an oil pump and neither does it have a dipstick. You check oil level by literally opening a bolt on the passanger side of the tranny and filling it up to the specified level.
I am not an engineer, so I cannot say. Do you have anything to back up your opinion?

Here is what I found about the oil pump:

"It has an internal oil pump for pressure lubrication. The change to pressure lubrication assures that local temperatures in the gear box are kept under control, a valid criticism of the 5-speed design under racing conditions. The 3.9 final drive unit has a separate oil galley, isolating possible gear chips and further managing internal thermal loads."

http://www.spdusa.com/6-speed_conversion.htm

Btw, the dipstick is very convenient. Not only for checking the oil level but also for filling the tranny. Getting under the car to check level is not quite convenient....
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