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Old 01-17-2013, 04:26 AM   #9 (permalink)
D.O.G.
Wanting more for less
 
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Join Date: Jan 2011
Location: New South Wales, Australia
Posts: 292

Metric - '94 Honda Magna 250
Motorcycle
90 day: 71.83 mpg (US)

RedCelica - '94 Toyota Celica ZR
90 day: 35.97 mpg (US)

i30 - '12 Hyundai i30 Elite
90 day: 38.06 mpg (US)
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A relevant post from a thread about catch cans early last year.

Quote:
Originally Posted by D.O.G. View Post
When I was driving "BoB" as my daily, I fitted a catch can (home made) because of the amount of oil coming through the PCV.
I later fitted a basic water injection system (also home made) to clean carbon from the combustion chamber and rings.
It restored some of the power and fuel economy the engine had lost over the years (over a few weeks), it also stopped the engine dumping so much oil out the PCV.
I'd been draining 15 to 20 CCs from the catch can every couple of weeks. After the rings had freed up (I guess), I only got a few drops out of the catch can.
Cleaning out carbon (that may be causing your rings to stick) won't restore compression in every case, but it's cheap, it's easy and it worked for "BoB" (now retired).
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