Quote:
Originally Posted by rnln
I don't have the carrera cooler to measure but I remember reading somewhere that the oil path/flow ID need to be somewhere close to 1".
Reading this page, ELEPHANT RACING 911 Widemouth Oil Cooler, about wide mouth fitting, look like the stock fitting ID is 17.5mm? Am I correct? Anyone measured this? What is correct?
I have a spare thrombone loop cooler. Measured the ID, I found that it is around 20mm.
I bought a used rx-7 cooler recently and found that the bung's ID is around 16mm or 17mm.
Can come one veryfy if these numbers above correct? If so, I don't need to replace the bung. I can just weld on a 16an on top of the existing bung is enough. Am I correct?
Another question I have is about the stock oil filter. Is it on the way oil comming back from the oil cooler into the engine? If it is, then I am safe if I modify the cooler and accidentaly leave some metal shave in the cooler. Correct?
Thanks. |
rnln,
The oil flows out from the engine and goes to the auxiliary thermostat. When the oil temperature is below 180°F (approx.), it flows back directly to the oil tank via the aux. thermostat by-pass valve. Oil enters the oil tank passing thru the oil filter and down to the oil reservoir. The oil line to the auxiliary cooler (trombone or Carrera) is filled with oil after start of the engine and stops at the thermostat return valve. Return valve does not open until about 180°F. For every opening of the by pass valve, an equal amount of opening is also occuring in the return valve. So at any given time, the combined orifice area/opening thru the aux. thermosat is maintained at the same level.
So what ever debris or metal shavings inadvertently left in the cooler would go thru the oil filter before mixing with the oil in the botton of the tank. Hopefully, the metal shavings won't cause any problem in the aux. thermostat's operation. The wider mouth fitting is unnecessary and I'm sure Chuck won't be happy reading this line.
Tony