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Grip It & Rip It
Join Date: Apr 2005
Location: SoCal
Posts: 1,219
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de-carbon combustion chamber?
Is there a way to get the carbon out of the combustion chamber? My car sounds like rattling marbles when warm. I always hear a nice rattle after a low rpm shift. The car has all the normal stuff replaced and I run high octane fuel.
I've tried sucking berryman b-12 into the intake via the brake booster and it didn't do a thing. Is pulling the head the only real way to get rid of the carbon in the engine? Thx for the input!  BMW M50 engine 145k miles.
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82 911SC (sold) |
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05-01-2015, 09:36 AM
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Andrew Gawers' Dad
Join Date: Apr 2011
Location: Andrews moms house, CO
Posts: 1,901
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Mopar Combustion Chamber Cleaner. Or MCCC.
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05-01-2015, 09:43 AM
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Dog-faced pony soldier
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Seafoam it. Naphtha.
Or pull the head off and bust it up by hand. You can carefully wire brush a piston top just don't hit the cylinder walls.
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A car, a 911, a motorbike and a few surfboards Black Cars Matter |
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05-01-2015, 09:50 AM
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Registered
Join Date: Dec 2007
Posts: 1,231
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M50 Engine...Does it have VANOS? if so, it could be that.
Have you tried a good old Italian tuneup on it? |
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05-01-2015, 10:26 AM
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Grip It & Rip It
Join Date: Apr 2005
Location: SoCal
Posts: 1,219
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Re-did VANOS already... Sounds like the best thing to do is keep doing intake treatments...
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82 911SC (sold) |
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05-01-2015, 10:35 AM
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Hell Belcho
Join Date: Sep 2006
Location: Oz
Posts: 9,249
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Run a gallon of denatured alcohol to 5 gallons gasoline. Drive like you stole it.
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Saved by the buoyancy of citrus. |
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05-01-2015, 10:54 AM
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Registered
Join Date: Jan 2001
Location: So. Cal.
Posts: 9,103
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This is no doubt grossly out of date, but my dad & I used to clean out engines with water in the old days. We'd run it at 2K+ rpm's and dribble water down the carburetor until the engine almost died, let rev up again and repeat. Only problem for now days was that it produced huge, billowing, black clouds out the exhaust. The steam is what cleaned it out. Maybe wouldn't apply now days, but a really simple fix.
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Marv Evans '69 911E |
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05-01-2015, 11:32 AM
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Registered
Join Date: Aug 2002
Location: MD
Posts: 5,733
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Very similar to the Seafoam through a vacuum line idea.
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05-01-2015, 11:37 AM
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Grip It & Rip It
Join Date: Apr 2005
Location: SoCal
Posts: 1,219
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I'll give seafoam a shot this weekend
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82 911SC (sold) |
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05-01-2015, 12:33 PM
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