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#1 |
Registered User
Join Date: Dec 2012
Location: Temple City
Posts: 3,597
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Seafoam usage
As I mentioned before I killed my last LT1 350 by dropping a bit into the intake. So it was replaced by a iron head LT1 from a Caprice to which I swapped on factory aluminum heads. It looked perfect from the outside, and when I got it. Did fine on a leak down test.
When I started it up after installation. I had a pronounced puffing out of my oil full from blow by. I tried pouring a can of seafoam in the intake. Then with another bottle I put some in the engine, and the rest in the gas. This cleared up about 1/2 the blow by. Driving the truck around 100 miles did n9t make a perceived gain. #7 cylinder still had 90 psi cranking pressure. With the rest around 180 to 200 psi. So I order seafoam spray, and fogged down #7 heavily. This solved the problem. I have basically no blow by now or excess crankcase pressure. I will take it on a 200 mile drive this Saturday to visit family, and remeasure #7 cylinder. So in my opinion. If your going the seafoam route for blow by. Just get the spray, and let it soak for a day or two. Spraying more in every few hours to deep clean. |
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#2 |
Senior Member
![]() Join Date: Dec 2009
Location: TN.
Posts: 8,138
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Re: Seafoam usage
Call it what you want.
![]() There are certain issues that I have used this. Mostly in the Gas tank. It is Very good Snake Oil. ![]() This stuff has fixed several issues I have had with vehicles. This is My Go-to for Fuel issues. I believe in this and a few other Elicker's.
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________________________________________________________________________________________ ____________________________________________ 84 Chevy K-20 63 Impala (my high school car) http://67-72chevytrucks.com/vboard/s...Crew Cab Build |
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