head with carbon
Road Master
Joined: Mar 2012
Posts: 1,030
Likes: 988
From: Ohio
I've used AC Delco Top Engine Cleaner since the late 70's. Does a great job of cleaning out the carbon.
ACDelco Top Engine Cleaner 01052626
ACDelco Top Engine Cleaner 01052626
Seasoned HDF Member
Joined: Nov 2006
Posts: 12,878
Likes: 5,449
From: la la land jerzey
Post war cars WW2 in the 50s they were installing what was called water injection to reduce carbon and it was adjustable wing nut kind of thing
but in the 20s marvel was invented and couple oz each fill up and your good - its a combo of between carb mixture and rings seal with out a PCV valve
but in the 20s marvel was invented and couple oz each fill up and your good - its a combo of between carb mixture and rings seal with out a PCV valve
HDF Community Team
Joined: Dec 2005
Posts: 5,421
Likes: 2,621
From: NC USA
Problem with any "quick fix" spray with an assembled engine running is - you're washing down the cylinder walls with whatever you spray. Water is the safest cause it won't cut the oil film between piston/wall as easily, so long as you don't use a garden hose.
Since the heads are off, Easy-Off oven cleaner and a stiff fiber brush always worked for me. May look different in person, but the head doesn't look that bad, not great but not alarming... unless it's low miles since last cleaned.
Since the heads are off, Easy-Off oven cleaner and a stiff fiber brush always worked for me. May look different in person, but the head doesn't look that bad, not great but not alarming... unless it's low miles since last cleaned.
Seasoned HDF Member
Joined: Jan 2011
Posts: 157,520
Likes: 57,070
From: Michigan 15 Minutes East Of Hell
Problem with any "quick fix" spray with an assembled engine running is - you're washing down the cylinder walls with whatever you spray. Water is the safest cause it won't cut the oil film between piston/wall as easily, so long as you don't use a garden hose.
Since the heads are off, Easy-Off oven cleaner and a stiff fiber brush always worked for me. May look different in person, but the head doesn't look that bad, not great but not alarming... unless it's low miles since last cleaned.
Since the heads are off, Easy-Off oven cleaner and a stiff fiber brush always worked for me. May look different in person, but the head doesn't look that bad, not great but not alarming... unless it's low miles since last cleaned.
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