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View Full Version : Carbon Build-up causing leaky valve seats on local evos?


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Andrew7dg
04-09-2010, 03:56 PM
Trevor has been running E85 for several thousand miles...10k? Idk, i'll let him chime in.

Where would you put the seafoam in this case? In the gas?

What about MCCC, spray it down the spark plug hole, possibly while compressing the valve so it is open, to get the cleaner on the back side of it?

This is what I did with the sea foam (and a lot of junk came out of the tail pipe!)


Start the car (this may be a 2 person job... maybe)

Take a piece of vacuum line tube and hook it to one of the TB vacuum ports

while pinching the line, Stick the other end into the can of sea foam

Slowly un pinch the line and just make sure that the seafoam is going in at a slow rate, only use like 1/3 of the can at most. it should be plenty

After a couple of seconds you will notice a blue smoke coming from the tail pipe.

Next drive around and have fun with a smoke screen. It will run but just feel like james bond...

*I will be not held liable if O2 sensors fail after this. But mine didn't...

9guy9
04-10-2010, 11:18 AM
What the old timers have told me to do with sea foam is; 1/3 can goes in the oil, 1/3 gos in the gas tank, the last 1/3 suck through a vac line. Drive the car 100 miles change the oil and fill the gas tank. Boom, brand new car!

1QUICK4
04-10-2010, 11:42 AM
What the old timers have told me to do with sea foam is; 1/3 can goes in the oil, 1/3 gos in the gas tank, the last 1/3 suck through a vac line. Drive the car 100 miles change the oil and fill the gas tank. Boom, brand new car!

This^^^

That's wahat I do/did to the bike and Chevelle every spring