Seafoam, Seafoam, Seafoam...
LC Piston Soak
- Thread starter Bobio
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Wish I could find toluene here...
TanSedan, how did the towels look. When I soaked my plugs, not a lot came off.
you know that carbon on top of the pistons is actually beneficial to the engine. Once an engine has established a bit of carbon, so long that it is flat and smooth, that carbon will do several things for you:
1. increase compression ratio a small margin
2. insulate the piston
3. insulate the cyl chamber
All of that leads to increased horsepower.
Where you don't want carbon is on the intake/exhaust valves. That will restrict the flow of air/exhaust and restrict power and efficiency.
1. increase compression ratio a small margin
2. insulate the piston
3. insulate the cyl chamber
All of that leads to increased horsepower.
Where you don't want carbon is on the intake/exhaust valves. That will restrict the flow of air/exhaust and restrict power and efficiency.
Done the LC piston soak (MolaSoak) numerous times. I do it before the ARX run. I turn the motor over once after an hour (having begun with a VERY hot motor). After an overnight soak, I spin the motor without the plugs, old towels covering plug holes. Then wash off engine and undercarriage (which has been soaked with engine cleaner).
Heat is the key to quick LC performance.
Heat is the key to quick LC performance.
would xylene do the same thing as toluene?
It may be time to piston soak before my oil change. ARX is in the mail to home, and then it should be on it's way here in a week or two. Just wish I didn't have the oil smell when I get the car up to 100 kmph.
I second the seafoam stuff. On my Tacoma 2.4, you can take out the plugs and see the tops of the pistons with a flashlight. Every so often I liberally spray Seafoam down into each cylinder and let soak for a couple hours. I just put some used plugs back in temp and run the engine afterwards to burn up and blow out the loose carbon. When finished, I let er cool down and take out the plugs. Shine the light down in there, and you can read the writing on the pistons. That clean. Put in the new plugs and yer good to go. I think 2 oz's is way to much personally.
Depended on the vehicle. By the time I had rotated the engine and made the second application of LC (to give all cylinders a heavy shot), about 4-ozs/cylinder had been used.
After the soak, I spin the engine several times, re-positioning the towels. After that, I use my oil sample gun to empty the cylinders (whether or not I can see anything).
The engine always needs a spraydown afterwards.
After the soak, I spin the engine several times, re-positioning the towels. After that, I use my oil sample gun to empty the cylinders (whether or not I can see anything).
The engine always needs a spraydown afterwards.
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