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Registered
Join Date: Mar 2003
Location: NORTH CAROLINA
Posts: 2,138
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Cleaning deposits on back of intake valves?
Any advice on cleaning deposits off of the back side of intake valves without pulling the head off the car? I have the intake manifold runner off of this cylinder and can see some buildup of carbon on the back of the valve head. I'm sure there is more in the combustion chamber as well. Thanks in advance. Bill
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02-27-2009, 09:56 AM
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What are you normally running for fuel? You might want to run a bottle of Techron with a fresh tank of gas. You could also try this...
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John '69 911E "It's a poor craftsman who blames their tools" -- Unknown "Any suspension -- no matter how poorly designed -- can be made to work reasonably well if you just stop it from moving." -- Colin Chapman |
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02-27-2009, 10:09 AM
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sudo apt-get purge 930
Join Date: Jul 2006
Location: Brandon, FL
Posts: 4,838
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I used BG 44K and had great luck.
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Mark 1979 930 Euro ***GONE AND DON'T MISS IT AT ALL*** "Worrying about depreciation on your car and keeping mileage down is like not ****ing your girlfriend so her next boyfriend finds her more appealing" --clutch-monkey |
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02-27-2009, 10:15 AM
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Registered
Join Date: Oct 2005
Location: Martinez, CA
Posts: 356
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Perhaps try squirting pure techron on to the back of the valves and let it sit for hours??
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1997 Boxster SOLD 1999 R1100S SOLD 1988 Carrera 3.2 |
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02-27-2009, 12:18 PM
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Schleprock
Join Date: Sep 2000
Location: Frankfort IL USA
Posts: 16,639
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No need to manually treat the deposits. Just run a can of Berryman B12 Chemtool in your gas tank and they'll be all clean.
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Kevin L '86 Carrera "Larry" |
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02-27-2009, 12:47 PM
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1969 Porsche 911E 2.0 E
